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KR102054888B1 - Bio-oil feed pump improved function antiwear and it's manufacturing mathod - Google Patents

Bio-oil feed pump improved function antiwear and it's manufacturing mathod Download PDF

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Publication number
KR102054888B1
KR102054888B1 KR1020190114232A KR20190114232A KR102054888B1 KR 102054888 B1 KR102054888 B1 KR 102054888B1 KR 1020190114232 A KR1020190114232 A KR 1020190114232A KR 20190114232 A KR20190114232 A KR 20190114232A KR 102054888 B1 KR102054888 B1 KR 102054888B1
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semi
rotating body
tempering
finished
insert member
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김충호
이병훈
심갑용
오주석
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김충호
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/16—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with helical teeth, e.g. chevron-shaped, screw type
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/18—Hardening; Quenching with or without subsequent tempering
    • C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
    • C21D8/105—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies of ferrous alloys
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/0605—Carbon
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/14—Metallic material, boron or silicon
    • C23C14/18—Metallic material, boron or silicon on other inorganic substrates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/04—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material
    • C23C28/044—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings of inorganic non-metallic material coatings specially adapted for cutting tools or wear applications
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/32—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer
    • C23C28/322—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one pure metallic layer only coatings of metal elements only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/30—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer
    • C23C28/34—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates
    • C23C28/347—Coatings combining at least one metallic layer and at least one inorganic non-metallic layer including at least one inorganic non-metallic material layer, e.g. metal carbide, nitride, boride, silicide layer and their mixtures, enamels, phosphates and sulphates with layers adapted for cutting tools or wear applications
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/24—Fluid mixed, e.g. two-phase fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/10—Manufacture by removing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/40—Heat treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2230/00—Manufacture
    • F04C2230/90—Improving properties of machine parts
    • F04C2230/91—Coating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/13—Kind or type mixed, e.g. two-phase fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/10—Manufacture by removing material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/40—Heat treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2230/00—Manufacture
    • F05B2230/90—Coating; Surface treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/10—Inorganic materials, e.g. metals

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
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Abstract

본 발명은 마모방지 기능이 향상된 바이오 중유용 스크루펌프 및 이의 제조방법에 관한 것으로, 그 목적은, 바이오중유의 특성과 회전체의 고속회전에 적합하도록 회전체와 고정체의 구성을 "강(Hard) 대 강(Hard)" 으로 제작하고, 이에 맞게 소재선정, 경도부여를 위한 열처리 및 표면처리를 하여 내마모성이 우수한 마모방지 기능이 향상된 바이오 중유용 스크루펌프 및 이의 제조방법을 제공함에 있다. 이는 펌프 케이싱의 내부에 설치되는 고정체인 이너케이싱과, 상기 고정체에 결합되는 회전체를 설치하되, 상기 회전체는, 이너케이싱의 중앙에 길이방향으로 설치되어진 스핀들 스크루와, 상기 스핀들 스크루에 결합되어 회전되는 아이들 스크루를 포함하며, 상기 고정체는 합금공구강이고, 상기 회전체는 크롬몰리브덴강으로 이루어지며, 상기 고정체 및 회전체는 열처리된 후 질화층이 형성되며, 상기 질화층 위에 PVD 코팅층을 형성하도록 하는 것이다.The present invention relates to a screw pump for bio-heavy oil with improved anti-wear function, and a method for manufacturing the same. The object of the present invention is to configure the rotating body and the fixed body so as to be suitable for the characteristics of the bio-heavy oil and the high speed rotation of the rotating body. ) Is made of "Hard", and according to the heat treatment and surface treatment for the material selection, hardness imparted according to the present invention to provide a screw pump for bio-heavy oil with improved wear resistance excellent wear resistance and a method of manufacturing the same. It installs an inner casing, which is a stationary body installed in the pump casing, and a rotating body coupled to the stationary body, wherein the rotating body is coupled to the spindle screw and a spindle screw installed longitudinally in the center of the inner casing. And the idler screw is rotated, the fixture is an alloy tool steel, the rotor is made of chromium molybdenum steel, the fixture and the rotor is heat-treated after the nitride layer is formed, the PVD coating layer on the nitride layer To form.

Description

마모방지 기능이 향상된 바이오 중유용 스크루펌프 및 이의 제조방법{Bio-oil feed pump improved function antiwear and it's manufacturing mathod}Bio-oil feed pump improved function antiwear and it's manufacturing mathod with improved wear protection

본 발명은 마모방지 기능이 향상된 바이오 중유용 스크루펌프 및 이의 제조방법에 관한 것으로, 더욱 상세하게는, 바이오중유의 특성과 회전체의 고속회전에 적합하도록 회전체와 고정체의 구성을 "강(Hard) 대 강(Hard)" 으로 제작하고, 이에 맞게 소재선정, 경도부여를 위한 열처리 및 표면처리를 하여 내마모성이 우수한 마모방지 기능이 향상된 바이오 중유용 스크루펌프 및 이의 제조방법에 관한 것이다.The present invention relates to a screw pump for bio-heavy oil with improved anti-wear function and a method of manufacturing the same. More specifically, the configuration of the rotating body and the fixed body so as to be suitable for the characteristics of the bio-heavy oil and high-speed rotation of the rotating body "steel ( Hard) Hard steel ", and according to the heat treatment and surface treatment for the material selection, hardness imparted according to the present invention relates to a bio-heavy oil screw pump and a method for producing the improved wear protection excellent wear resistance.

일반적으로, 바이오 중유는 다양한 동,식물성 유지, 지방산 및 그 부산물을 혼합한 연료로 섬유질 및 슬러리(Slurry)를 다량으로 포함하고 있다.Generally, bio heavy oil is a fuel mixed with various animal and vegetable fats and oils, fatty acids and by-products, and contains a large amount of fiber and slurry.

또한, 바이오 중유는 신재생에너지로 인정받음과 아울러 경제성이 생겨 친환경 발전소 등에 사용하기 위해 많은 연구가 진행되고 있다.In addition, bio heavy oil is recognized as a renewable energy and economical, so a lot of research is being carried out for use in eco-friendly power plants.

여기서 바이오 중유를 연료탱크에서 버너로 이송시키기 위한 이송펌프로 스크루펌프가 사용되게 되는데, 스크루펌프는 고점도 및 이물질이 함유된 유체를 이송하는데 사용되며, 회전체의 갯수에 따라 1축(단일) 스크루펌프(Single Screw Pump), 2축(쌍) 스크루펌프(Twin Screw Pump), 3축(삼중)스크루펌프(Triple Screw Pump) 분류되고 고압일수록 회전체(Rotor)가 증가 한다.Here, a screw pump is used as a transfer pump for transferring bio heavy oil from a fuel tank to a burner. The screw pump is used to transfer a fluid containing high viscosity and foreign substances, and is a single screw (single) screw depending on the number of rotating bodies. Single screw pump, twin screw pump, triple screw pump are classified and the higher the rotor, the higher the rotor.

또한, 발전용 바이오 중유의 사용 조건은 운전온도 60℃를 기준하여 동점도(Kinematic Viscosity)가 14~28Centistoke(cSt) 범주 내에서 스크루펌프가 운전되며, 발전용 스크루펌프는 고압용으로 분당 1750rpm의 고속회전에 의한 연료를 이송할 수 있는 3축 스크루펌프(Triple Screw Pump)를 사용하며, 압력은 10bar 이상을 얻을 수 있다.In addition, the use condition of bio heavy fuel oil for power generation is based on the operating temperature of 60 ° C. Kinematic Viscosity operates within 14 ~ 28Centistoke (cSt) category, and the power generation screw pump is high pressure of 1750rpm per minute for high pressure. It uses a triple screw pump that can transfer fuel by rotation, and the pressure can be more than 10 bar.

도 1은 종래에 따른 스크루펌프의 단면도를 나타낸 도면이다.1 is a view showing a cross-sectional view of a conventional screw pump.

도 1을 참고하면 종래의 스크루펌프는, 고속 회전체인 스핀들스크루(Spindle Screw) 및 아이들 스크루(Idle Screw)와 이너케이싱(Inner Casing)을 포함한다.Referring to FIG. 1, a conventional screw pump includes a spindle screw, an idle screw, and an inner casing, which are high speed rotating bodies.

상기 스크루펌프에 공급되는 바이오 중유는 섬유질 및 슬러리(Slurry)를 포함하고 있으므로 고속 회전체인 스핀들스크루(Spindle Screw) 및 아이들 스크루(Idle Screw) 와 이너케이싱( Inner Casing)의 마찰 마모에 의해 압력 및 유량이 감소되어 펌프의 기능을 상실한다.Since the bio heavy oil supplied to the screw pump includes fibers and slurry, the pressure and friction caused by the frictional wear of the spindle screw, the idle screw, and the inner casing, The flow rate is reduced and the pump loses its function.

즉, 종래의 스크루펌프는 핵심부품의 마찰마모 발생은 회전체는 경도를 부여하고 고정체는 경도가 약한 연질의 소재를 사용하여 "강(hard) 대 약(Soft)"의 대응으로 인해 마모가 빠르게 발생하는 문제점이 있었다.In other words, the conventional screw pump is abrasion wear of the core parts is abrasion due to the response of "hard (soft)" by using a soft material of the rotational body gives a hardness and the fixed body is a weak hardness There was a problem that occurred quickly.

상기에서 강 대 약의 목적은 회전체와 고정체간의 겔링(Galling)을 방지하기위한 목적이나 펌프 수명은 빠르게 단축된다. 펌프의 회전체와 고정체가 겔링이 되면 펌프는 정지하게 된다.In the above, the purpose of the steel is to prevent the galling (Galling) between the rotor and the stationary body, but the pump life is shortened quickly. When the rotor and the stationary body of the pump gel, the pump stops.

참고로, 겔링(Galling)은 금속표면에 슬라이딩이 발생하는 동안 마찰과 접착의 조합으로 발생하게 되며, 겔링이 발생할 때 금속 재질 한쪽 면을 끈끈하게 잡아당겨 다른 면에 덩어리 형태로 달라붙게 되고, 이 과정에서 쌓인 덩어리가 더 많은 겔링을 유도하여 급속하게 확장된다.For reference, the galling is caused by a combination of friction and adhesion during the sliding of the metal surface, and when the gelling occurs, the surface of the metal material is pulled sticky and sticks to the other surface in a lump form. The mass accumulated in the process expands rapidly, leading to more gelling.

본 발명은 상기 종래기술의 문제점을 해결하기 위한 것으로, 본 발명의 목적은, 바이오중유의 특성과 회전체의 고속회전에 적합하도록 회전체와 고정체의 구성을 "강(Hard) 대 강(Hard)" 으로 제작하고, 이에 맞게 소재선정, 경도부여를 위한 열처리 및 표면처리를 하여 내마모성이 우수한 마모방지 기능이 향상된 바이오 중유용 스크루펌프 및 이의 제조방법을 제공함에 있다.The present invention is to solve the problems of the prior art, the object of the present invention, the configuration of the rotating body and the fixed body so as to be suitable for the characteristics of the bio-heavy oil and the high-speed rotation of the rotating body "Hard vs. Hard (Hard) ), And according to the heat treatment and surface treatment for the material selection, hardness imparted according to the present invention to provide a screw pump for bio-heavy oil with improved abrasion resistance excellent wear resistance and a method of manufacturing the same.

본 발명을 달성하기 위한 기술적 사상으로 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제1실시예는, 펌프 케이싱의 내부에 설치되는 고정체인 이너케이싱과, 상기 고정체에 결합되는 회전체를 설치하되, 상기 회전체는, 이너케이싱의 중앙에 길이방향으로 설치되어진 스핀들 스크루와, 상기 스핀들 스크루에 결합되어 회전되는 아이들 스크루를 포함하며, 상기 고정체는 합금공구강이고, 상기 회전체는 크롬몰리브덴강으로 이루어지며, 상기 고정체 및 회전체는 열처리된 후 질화층이 형성되며, 상기 질화층 위에 PVD 코팅층을 형성하도록 하는 것이다.According to a first aspect of the present invention, a biofuel screw pump having improved wear protection is provided with an inner casing, which is a fixed body installed inside the pump casing, and a rotating body coupled to the fixed body. The rotating body includes a spindle screw installed in a longitudinal direction at the center of the inner casing, and an idle screw rotated by being coupled to the spindle screw, wherein the fixed body is an alloy tool steel, and the rotating body is made of chromium molybdenum steel. The fixed body and the rotating body are heat-treated, and then a nitride layer is formed to form a PVD coating layer on the nitride layer.

또한, 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제2실시예는, 펌프 케이싱의 내부에 설치되는 고정체인 이너케이싱과, 상기 고정체에 결합되는 회전체를 설치하되, 상기 회전체는, 이너케이싱의 중앙에 길이방향으로 설치되어진 스핀들 스크루와, 상기 스핀들 스크루에 결합되어 회전되는 아이들 스크루를 포함하며, 상기 이너케이싱은 인서트부재의 외부에 알루미늄 합금으로 주조하여 형성하며, 상기 인서트부재는 합금공구강이고, 상기 회전체는 크롬몰리브덴강으로 이루어지며, 상기 고정체 및 회전체는 열처리된 후 질화층이 형성되며, 상기 질화층 위에 PVD 코팅층을 형성하도록 하는 것이다.In addition, according to the second embodiment of the screw pump for bio-heavy oil with improved wear protection according to the present invention, the inner casing and the rotating body coupled to the fixed body is installed in the pump casing, The whole includes a spindle screw installed longitudinally in the center of the inner casing, and an idle screw rotated by being coupled to the spindle screw, wherein the inner casing is formed by casting an aluminum alloy on the outside of the insert member, and the insert The member is an alloy tool steel, and the rotating body is made of chromium molybdenum steel, and the fixing body and the rotating body are heat treated to form a nitride layer, and to form a PVD coating layer on the nitride layer.

또한, 상기 이너케이싱의 열처리는 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것이다.In addition, the heat treatment of the inner casing is given hardness by quenching and tempering, the quenching (Qunching) is held for 1.5 hours at a temperature of 1000 ~ 1050 ℃ (Holding) and air-cooled, tempering (Tempering) at a temperature of 560 ~ 650 ℃ Hold for 3 hours and air-cooled to have hardness HRc 47-50.

또한, 상기 인서트부재의 열처리는 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것이다.In addition, the heat treatment of the insert member is given a hardness by quenching and tempering, the quenching (Qunching) is held for 1.5 hours at a temperature of 1000 ~ 1050 ℃ (Holding) and air-cooled, tempering (Tempering) at a temperature of 560 ~ 650 ℃ Hold for 3 hours and air-cooled to have hardness HRc 47-50.

또한, 상기 회전체의 열처리 층은, 담금질 및 뜨임에 의해 경도가 부여되며, 상기 담금질(Qunching)은, 온도 830~880℃에서 1.5시간 보유하고 유냉하며, 뜨임(Tempering)은, 온도 620~650℃에서 3시간 보유하고 유냉하며 경도(Hardness)는 HRc 26~28인 것이다.In addition, the heat treatment layer of the rotating body, the hardness is imparted by quenching and tempering, the quenching (Qunching), the oil is retained and cooled for 1.5 hours at a temperature of 830 ~ 880 ℃, tempering (Tempering), temperature 620 ~ 650 Hold for 3 hours at ℃ ℃, oil-cooled (Hardness) is HRc 26 ~ 28.

또한, 상기 질화 층은, 프라즈마 질화(Prasma Nitriding)상태에서 온도는 450 ~ 510℃, 보유(Holding)시간은 24시간 이상으로 유지하며, 경화층 깊이는 0.20~0.25mm로 표면경도는 Hv900~1020 으로 이루어진 것이다.In addition, the nitride layer, the temperature is maintained at 450 ~ 510 ℃, holding time of 24 hours or more in the plasma nitriding state (Prasma Nitriding), the depth of the hardened layer is 0.20 ~ 0.25mm surface hardness is Hv900 ~ 1020 It is made up of.

또한, 상기 PVD 코팅층은, PVD 코팅의 물질로는 DLC,Ti,Al,Cr,Si를 포함하며, 코팅 작업온도는 변형 방지를 위해 500℃ 이하에서 실시하며, PVD Coating의 특성은 박막표면경도(Hv)는 2000~3500, 마찰계수는 0.05~0.5, 코팅두께(㎛)는, 0.3~15, 코팅작업온도(℃)는, 200~500, 최대적용온도범위(℃)는, 300~1100 인 것이다.In addition, the PVD coating layer, the material of the PVD coating includes DLC, Ti, Al, Cr, Si, the coating operation temperature is carried out at 500 ℃ or less to prevent deformation, the characteristics of the PVD coating thin film surface hardness ( Hv) is 2000 to 3500, friction coefficient is 0.05 to 0.5, coating thickness (µm) is 0.3 to 15, coating working temperature (℃) is 200 to 500, and maximum application temperature range (℃) is 300 to 1100. will be.

또한, 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제조방법의 제1실시예는, 크롬몰리브덴강으로 이루어진 회전체의 소재를 준비하고, 1차 황삭가공하여 반제품 상태의 회전체를 형성하도록 하는 회전체 소재 준비공정과, 1차 황삭가공된 상기 회전체의 반제품을 담금질 및 뜨임 하게 되는 회전체 반제품 열처리공정과, 열처리된 상기 회전체의 반제품을 질화처리가 용이하도록 가공하게 되는 회전체 반제품 가공공정과, 가공 처리된 상기 회전체의 반제품을 질화처리하는 회전체 반제품 질화처리공정과, 질화 처리된 상기 회전체의 반제품을 PVD 코팅 처리하는 회전체 반제품 코팅공정을 포함하는 회전체 제작단계; 또한, 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제조방법의 제1실시예는, 합금공구강으로 이루어진 고정체 소재를 준비하고, 1차 황삭가공하여 반제품 상태의 고정체를 형성하도록 하는 고정체 소재 준비공정과, 1차 황삭가공된 상기 고정체 반제품을 담금질 및 뜨임 하게 되는 고정체 반제품 열처리공정과, 열처리된 상기 고정체의 반제품을 질화처리가 용이하도록 가공하게 되는 고정체 반제품 가공공정과, 가공처리된 상기 고정체 반제품을 질화처리하는 고정체 반제품 질화처리공정과, 질화처리된 상기 고정체 반제품을 PVD 코팅처리하는 고정체 반제품 코팅공정을 포함하는 고정체 제작단계; 상기 회전체 제작단계에서 제작된 회전체를 상기 고정체 제작단계에서 제작된 고정체에 결합시키는 결합단계;을 포함하는 것이다.In addition, the first embodiment of the method for manufacturing a bio-heavy fuel screw pump with improved wear protection according to the present invention, the raw material of the rotating body made of chromium molybdenum steel is prepared, and the first rough roughening to prepare the rotating body in the semi-finished state Rotating material preparation process to form, rotatable semi-finished heat treatment process to quench and temper the semi-finished product of the first rough machining process, and to process the semi-finished product of the heat-treated rotor to facilitate nitriding Rotator production including the whole semi-finished product processing process, the rotor semi-finished product nitriding process for nitriding the semi-finished product of the processed rotor, and the rotor semi-finished product coating process for PVD coating the semi-finished product of the nitrided rotor step; In addition, the first embodiment of the method for manufacturing a bio-heavy fuel screw pump with improved wear protection according to the present invention is to prepare a fixture material consisting of alloy tooling, and to rough the primary process to form a fixture in a semi-finished state Fixture material preparatory process, fixer semi-finished heat treatment process for quenching and tempering the first rough-processed semifinished product, and fixation semifinished product processing for easy nitriding of the semi-finished product of the heat-fixed fixture A fixture manufacturing step comprising a process, a fixture semifinished product nitriding process for nitriding the processed semifinished product and a fixture semifinished product coating process for PVD coating the nitrided semifinished product; And a coupling step of coupling the rotating body produced in the rotating body manufacturing step to the fixed body produced in the fixing body manufacturing step.

또한, 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제조방법의 제2실시예는, 크롬몰리브덴강으로 이루어진 회전체의 소재를 준비하고, 1차 황삭가공하여 반제품 상태의 회전체를 형성하도록 하는 회전체 소재 준비공정과, 1차 황삭가공된 상기 회전체의 반제품을 담금질 및 뜨임 하게 되는 회전체 반제품 열처리공정과, 열처리된 상기 회전체의 반제품을 질화처리가 용이하도록 가공하게 되는 회전체 반제품 가공공정과, 가공처리된 상기 회전체의 반제품을 질화처리하는 회전체 반제품 질화처리공정과, 질화처리된 상기 회전체의 반제품을 PVD 코팅처리하는 회전체 반제품 코팅공정을 포함하는 회전체 제작단계; 합금공구강으로 이루어진 인서트부재 소재를 준비하고, 1차 황삭가공하여 반제품 상태의 인서트부재를 형성하도록 하는 인서트부재 소재 준비공정과, 1차 황삭가공된 상기 인서트부재 반제품을 담금질 및 뜨임 하게 되는 인서트부재 반제품 열처리공정과, 열처리된 상기 인서트부재의 반제품을 질화처리가 용이하도록 가공하게 되는 인서트부재 반제품 가공공정과, 가공처리된 상기 인서트부재 반제품을 질화처리하는 인서트부재 반제품 질화처리공정과, 질화처리된 상기 인서트부재 반제품을 PVD 코팅처리하는 인서트부재 코팅공정과, 상기 인서트부재 코팅공정에서 형성된 인서트부재의 외면을 알류미늄 합금으로 주조하는 고정체 반제품 주조공정을 포함하는 고정체 제작단계; 상기 회전체 제작단계에서 제작된 회전체를 상기 고정체 제작단계에서 제작된 고정체에 결합시키는 결합단계;을 포함하는 것이다.In addition, according to the second embodiment of the method for manufacturing a screw pump for bio-heavy oil according to the present invention, the raw material of a rotating body made of chromium molybdenum steel is prepared, and the first roughing process is performed to prepare the rotating body in a semi-finished state. Rotating material preparation process to form, rotatable semi-finished heat treatment process to quench and temper the semi-finished product of the first rough machining process, and to process the semi-finished product of the heat-treated rotor to facilitate nitriding Fabrication of a rotating body comprising a whole semi-finished product processing process, a rotating body semi-finished product nitriding process for nitriding the semi-finished product of the processed rotating body, and a rotating body semi-finished product coating process for PVD coating the semi-finished product of the nitride-processed rotating body step; An insert member material preparation process for preparing an insert member material made of alloy steel, and forming a insert member in a semi-finished state by first rough machining, and an insert member semi-finished product which is quenched and tempered in the first rough machining insert member semi-finished product. A heat treatment process, an insert member semi-finished product processing step for easily nitriding the semi-finished product of the heat-treated insert member, an insert member semi-product nitriding process for nitriding the processed insert member semi-finished product, and the nitrided treatment A stationary fabrication step including an insert member coating process for PVD coating an insert member semi-finished product and a stationary semi-product casting process for casting an outer surface of the insert member formed in the insert member coating process with an aluminum alloy; And a coupling step of coupling the rotating body produced in the rotating body manufacturing step to the fixed body produced in the fixing body manufacturing step.

또한, 상기 고정체 반제품 열처리공정은 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것이다.In addition, the stationary semi-finished heat treatment process is given a hardness by quenching and tempering, quenching (Holding) is held and air-cooled for 1.5 hours at a temperature of 1000 ~ 1050 ℃, tempering (Tempering) temperature 560 ~ 650 ℃ Hold for 3 hours in air-cooled and the hardness is HRc 47 ~ 50.

또한, 상기 인서트부재 반제품 열처리공정은 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것이다.In addition, the insert member semi-finished heat treatment process is given hardness by quenching and tempering, the quenching (Qunching) is held (air) and air-cooled for 1.5 hours at a temperature 1000 ~ 1050 ℃, tempering (Tempering) temperature 560 ~ 650 ℃ Hold for 3 hours in air-cooled and the hardness is HRc 47 ~ 50.

또한, 상기 회전체 반제품 열처리공정은, 담금질 및 뜨임에 의해 경도가 부여되며, 상기 담금질(Qunching)은, 온도 830~880℃에서 1.5시간 보유하고 유냉하며, 뜨임(Tempering)은, 온도 620~650℃에서 3시간 보유하고 유냉하며 경도(Hardness)는 HRc 26~28인 것이다.In addition, the rotating body semi-finished heat treatment process, the hardness is given by quenching and tempering, the quenching (Qunching), the oil is retained and cooled for 1.5 hours at a temperature of 830 ~ 880 ℃, tempering (Tempering), temperature 620 ~ 650 Hold for 3 hours at ℃ ℃, oil-cooled (Hardness) is HRc 26 ~ 28.

또한, 상기 회전체 반제품 질화처리공정, 고정체 반제품 질화처리공정 및 인서트부재 반제품 질화처리공정은, 프라즈마 질화(Prasma Nitriding) 상태에서 온도는 450 ~ 510℃, 보유(Holding)시간은 24시간 이상으로 유지하며, 경화층 깊이는 0.20~0.25mm로 표면경도는 Hv900~1020 으로 이루어진 것이다.In addition, the rotary semifinished product nitriding process, the fixed semifinished product nitriding process and the insert member semifinished product nitriding process, the temperature is 450 ~ 510 ℃, holding time is 24 hours or more in the plasma nitriding state (Prasma Nitriding) To maintain, the depth of the hardened layer is 0.20 ~ 0.25mm and the surface hardness is made of Hv900 ~ 1020.

또한, 상기 회전체 반제품 코팅공정, 고정체 반제품 코팅공정 및 인서트부재 코팅공정은, PVD 코팅의 물질로는 DLC,Ti,Al,Cr,Si를 포함하며, 코팅 작업온도는 변형 방지를 위해 500℃ 이하에서 실시하며, PVD Coating의 특성은 박막표면경도(Hv)는 2000~3500, 마찰계수는 0.05~0.5, 코팅두께(㎛)는, 0.3~15, 코팅작업온도(℃)는, 200~500, 최대적용온도범위(℃)는, 300~1100 인 것이다.In addition, the rotor semi-finished product coating process, stationary semi-finished product coating process and insert member coating process, the material of the PVD coating includes DLC, Ti, Al, Cr, Si, the coating working temperature is 500 ℃ to prevent deformation The characteristics of PVD coating are as follows. Thin film surface hardness (Hv) is 2000 ~ 3500, friction coefficient is 0.05 ~ 0.5, coating thickness (㎛) is 0.3 ~ 15, coating working temperature (℃) is 200 ~ 500 , Maximum application temperature range (° C) is 300 to 1100.

본 발명을 달성하기 위한 기술적 사상으로 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프 및 이의 제조방법은, 고정체인 이너케이싱은 합금공구강이고, 회전체인 회전체는 크롬몰리브덴강으로 이루어지며, 상기 고정체 및 회전체는 열처리된 후 질화층이 형성되며, 상기 질화층 위에 PVD 코팅층을 형성하도록 함으로서, 바이오중유의 특성과 회전체의 고속회전에 적합하도록 회전체와 고정체의 구성을 "강(Hard) 대 강(Hard)" 으로 제작하고, 이에 맞게 소재선정, 경도부여를 위한 열처리 및 표면처리를 하여 내마모성이 우수하다.As a technical idea for achieving the present invention, a screw pump for bio-heavy oil with improved anti-wear function according to the present invention, and a method for manufacturing the same, the inner casing of the stationary body is alloy steel, and the rotating body is made of chromium molybdenum steel. After the heat treatment is carried out, the fixed body and the rotating body have a nitride layer formed thereon, and the PVD coating layer is formed on the nitride layer, so that the structure of the rotating body and the fixed body is suitable for the characteristics of bio-heavy oil and the high speed rotation of the rotating body. Hard (Hard) vs. Hard (Hard) ", and according to the heat treatment and surface treatment for material selection, hardness imparted according to the wear resistance is excellent.

또한, 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프 및 이의 제조방법은, 고정체인 이너케이싱은 인서트부재의 외부에 알루미늄 합금으로 주조하여 형성하며, 상기 인서트부재는 합금공구강이고, 회전체인 상기 회전체는 크롬몰리브덴강으로 이루어지며, 상기 고정체 및 회전체는 열처리된 후 질화층이 형성되며, 상기 질화층 위에 PVD 코팅층을 형성하도록 함으로서, 바이오중유의 특성과 회전체의 고속회전에 적합하도록 회전체와 고정체의 구성을 "강(Hard) 대 강(Hard)" 으로 제작하고, 이에 맞게 소재선정, 경도부여를 위한 열처리 및 표면처리를 하여 내마모성이 우수하다.In addition, according to the present invention, the wear prevention function is improved bio-heavy fuel pump and its manufacturing method, the inner casing is a fixed body is formed by casting the aluminum alloy on the outside of the insert member, the insert member is an alloy tool steel, rotating body The rotating body is made of chromium molybdenum steel, the fixing body and the rotating body is heat-treated to form a nitride layer, by forming a PVD coating layer on the nitride layer, to the characteristics of bio-heavy oil and high speed rotation of the rotating body The structure of the rotating body and the fixed body is made of "Hard vs. Hard", and accordingly, it is excellent in wear resistance by heat treatment and surface treatment for material selection and hardening.

도 1은 종래에 따른 스크루펌프의 단면도를 나타낸 도면.
도 2는 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 이너케이싱이 일체형인 상태의 도면.
도 3은 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 이너케이싱이 이중형인 상태의 도면.
도 4는 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 스핀들 스크루를 나타낸 도면.
도 5는 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 아이들 스크류을 나타낸 도면.
도 6은 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제1실시예의 제조방법 순서도.
도 7은 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제2실시예의 제조방법 순서도.1 is a cross-sectional view of a conventional screw pump.
Figure 2 is a state of the inner casing of the screw pump for bio-heavy fuel oil improved improved wear protection according to the present invention.
Figure 3 is a view of a state in which the inner casing of the screw pump for bio-heavy fuel oil improved improved wear protection according to the present invention.
Figure 4 is a view showing the spindle screw of the bio-heavy fuel oil screw pump improved wear protection according to the present invention.
Figure 5 is a view showing an idle screw of the screw pump for bio-heavy fuel oil improved wear protection according to the present invention.
Figure 6 is a flow chart of the manufacturing method of the first embodiment of the bio-heavy oil screw pump improved wear protection according to the present invention.
Figure 7 is a flow chart of the manufacturing method of the second embodiment of the wear-improved bio heavy oil screw pump according to the present invention.

본 발명의 이점 및 특징, 그리고 그것들을 달성하는 방법은 첨부되는 도면과 함께 상세하게 후술 되어 있는 실시예들을 참조하면 명확해질 것이다. 그러나 본 발명은 이하에서 개시되는 실시예들에 한정되는 것이 아니라 서로 다른 다양한 형태로 구현될 것이며, 단지 본 실시예들은 본 발명의 개시가 완전하도록 하며, 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에게 발명의 범주를 완전하게 알려주기 위해 제공되는 것이며, 본 발명은 청구항의 기재에 의해 정의된다.Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only the embodiments to make the disclosure of the present invention complete, and the general knowledge in the technical field to which the present invention belongs. It is provided to fully convey the scope of the invention to those skilled in the art, and the invention is defined by the description of the claims.

한편, 본 명세서에서 사용된 용어는 실시예들을 설명하기 위한 것이며 본 발명을 제한하고자 하는 것은 아니다. 본 명세서에서, 단수형은 문구에서 특별히 언급하지 않는 한 복수형도 포함한다. 명세서에서 사용되는 "포함한다(comprises)" 및/또는 "포함하는(comprising)"은 언급된 구성소자, 단계, 동작 및/또는 소자에 하나 이상의 다른 구성소자, 단계, 동작 및/또는 소자의 존재 또는 추가함을 배제하지 않는다. 이하, 첨부된 도면을 참조하여 본 발명의 실시예를 상세히 설명하기로 한다.Meanwhile, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, “comprises” and / or “comprising” refers to the presence of one or more other components, steps, operations and / or elements in the components, steps, operations and / or elements mentioned. Or does not exclude the addition. Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 이너케이싱이 일체형인 상태의 도면이고, 도 3은 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 이너케이싱이 이중형인 상태의 도면이며, 도 4는 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 스핀들 스크루를 나타낸 도면이고, 도 5는 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 아이들 스크루를 나타낸 도면이다.Figure 2 is a view of the inner casing of the bio-heavy oil screw pump with improved wear protection according to the present invention is integral, Figure 3 is an inner casing of the bio-heavy fuel pump with improved wear protection according to the present invention is double Figure 4 is a view of the state, Figure 4 is a view showing the spindle screw of the bio-heavy oil screw pump improved wear protection according to the present invention, Figure 5 is an idle wear-resistant bio-heavy oil screw pump according to the present invention It is a figure which shows a screw.

도 2 내지 도 5를 참고하면, 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프는, 펌프 케이싱의 내부에 설치되는 고정체인 이너케이싱(10)과, 상기 고정체에 결합되는 회전체를 설치하되, 상기 회전체는, 이너케이싱(10)의 중앙에 길이방향으로 설치되어진 스핀들 스크루(20)와, 상기 스핀들 스크루(20)에 결합되어 회전되는 아이들 스크루(30)를 포함한다.2 to 5, the screw pump for bio-heavy oil with improved wear protection according to the present invention, the inner casing (10) which is a fixed body installed in the pump casing and the rotating body coupled to the fixed body Although installed, the rotating body includes a spindle screw 20 installed in the center of the inner casing 10 in the longitudinal direction, and an idle screw 30 coupled to the spindle screw 20 to rotate.

또한, 상기 이너케이싱(10)은 합금공구강이고, 상기 회전체는 크롬몰리브덴강으로 이루어지며, 상기 고정체 및 회전체는 열처리된 후 질화층(40)이 형성되며, 상기 질화층(40) 위에 PVD 코팅층(50)을 형성하도록 한다.In addition, the inner casing 10 is an alloy tool steel, the rotor is made of chromium molybdenum steel, the fixture and the rotor is heat-treated after the nitride layer 40 is formed, on the nitride layer 40 The PVD coating layer 50 is formed.

또한, 상기 이너케이싱(10)의 열처리는 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것이다.In addition, the heat treatment of the inner casing (10) is given hardness by quenching and tempering, quenching (Qunching) is held for 1.5 hours at a temperature of 1000 ~ 1050 ℃ (Holding) and air-cooled, tempering (Tempering) temperature 560 ~ Hold at 650 ° C for 3 hours and air cooled to have a hardness of HRc 47-50.

또한, 상기 회전체의 열처리층은, 담금질 및 뜨임에 의해 경도가 부여되며, 상기 담금질(Qunching)은, 온도 830~880℃에서 1.5시간 보유하고 유냉하며, 뜨임(Tempering)은, 온도 620~650℃에서 3시간 보유하고 유냉하며 경도(Hardness)는 HRc 26~28인 것이다.In addition, the heat treatment layer of the rotating body, the hardness is imparted by quenching and tempering, the quenching (Qunching), the oil is retained and cooled for 1.5 hours at a temperature of 830 ~ 880 ℃, tempering (Tempering), temperature 620 ~ 650 Hold for 3 hours at ℃ ℃, oil-cooled (Hardness) is HRc 26 ~ 28.

또한, 상기 질화층(40)은, 프라즈마 질화(Prasma Nitriding)상태에서 온도는 450 ~ 510℃, 보유(Holding)시간은 24시간 이상으로 유지하며, 경화층 깊이는 0.20~0.25mm로 표면경도는 Hv900~1020 으로 이루어진 것이다.In addition, the nitride layer 40, the temperature is maintained at 450 ~ 510 ℃, holding time of 24 hours or more in the plasma nitriding state (Prasma Nitriding), the depth of the hardened layer is 0.20 ~ 0.25mm surface hardness is It consists of Hv900 ~ 1020.

또한, 상기 PVD 코팅층(50)은, PVD 코팅의 물질로는 DLC,Ti,Al,Cr,Si를 포함하며, 코팅 작업온도는 변형 방지를 위해 500℃ 이하에서 실시하며, PVD Coating의 특성은 박막표면경도(Hv)는 2000~3500, 마찰계수는 0.05~0.5, 코팅두께(㎛)는, 0.3~15, 코팅작업온도(℃)는, 200~500, 최대적용온도범위(℃)는, 300~1100 인 것이다.In addition, the PVD coating layer 50, the material of the PVD coating includes DLC, Ti, Al, Cr, Si, the coating operation temperature is carried out at 500 ℃ or less to prevent deformation, the characteristics of the PVD coating thin film Surface hardness (Hv) is 2000 to 3500, friction coefficient is 0.05 to 0.5, coating thickness (µm) is 0.3 to 15, coating working temperature (℃) is 200 to 500, maximum application temperature range (℃) is 300 ˜1100.

참고로, PVD(Physical Vapor Deposition) 코팅은 물리증착법으로 진공속에서 가스화한 물질을 금속표면에 피복하는 방법으로 작업온도가 낮아(500℃) 제품의 열변형이 없으며, 저마찰계수, 내마모성, 고경도, 내식성을 얻을 수 있다.For reference, PVD (Physical Vapor Deposition) coating is a method of coating the gasified material in a vacuum on the metal surface by physical vapor deposition method, so there is no thermal deformation of product due to low working temperature (500 ℃), low friction coefficient, abrasion resistance, high hardness Also, corrosion resistance can be obtained.

한편, 본 발명에 따른 이너케이싱(10)은 도 3에 도시한 바와 같이 이중형으로 형성시켜 자중을 줄일 수 있는데, 이를 설명하기 위해 중복된 부위는 생략하며, 동일한 구성요소에는 동일한 부호를 부여하여 설명의 복잡화를 방지한다.On the other hand, the inner casing 10 according to the present invention can be formed in a dual form as shown in Figure 3 to reduce the weight, overlapping parts are omitted to explain this, and the same components are given the same reference numerals To prevent complexity.

도 3을 참고하면, 이너케이싱(10)은 인서트부재(11)의 외부에 알루미늄 합금으로 주조하여 하우징(12)을 형성할 수 있으며, 상기 인서트부재(11)는 합금공구강이며, 상기 회전체는 크롬몰리브덴강으로 이루어지며, 상기 고정체 및 회전체는 열처리된 후 질화층(40)이 형성되며, 상기 질화층(40) 위에 PVD 코팅층(50)을 형성하도록 할 수 있다.Referring to FIG. 3, the inner casing 10 may be formed of an aluminum alloy on the outside of the insert member 11 to form a housing 12, and the insert member 11 is an alloy tool steel, and the rotating body may be It is made of chromium molybdenum steel, the fixed body and the rotor is heat-treated after the nitride layer 40 is formed, it is possible to form a PVD coating layer 50 on the nitride layer 40.

또한, 상기 인서트부재(11)의 열처리는 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것이다.In addition, the heat treatment of the insert member 11 is given hardness by quenching and tempering, the quenching (Qunching) is held for 1.5 hours at a temperature of 1000 ~ 1050 ℃ (Holding) and air-cooled, tempering (Tempering) temperature 560 ~ Hold at 650 ° C for 3 hours and air cooled to have a hardness of HRc 47-50.

또한, 상기 인서트부재(11)의 질화층(40)과 PVD 코팅층(50)은 위의 내용과 동일한 내용임으로 설명을 생략한다.In addition, since the nitride layer 40 and the PVD coating layer 50 of the insert member 11 are the same as the above contents, description thereof will be omitted.

도 6은 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제1실시예의 제조방법 순서도이다.Figure 6 is a flow chart of the manufacturing method of the first embodiment of the bio-heavy fuel oil pump with improved wear protection according to the present invention.

도 6을 참고하면, 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제1실시예의 제조방법은, 회전체 제작단계(S100), 고정체 제작단계(S200) 및 결합단계(S300)를 포함한다.Referring to Figure 6, the manufacturing method of the first embodiment of the wear prevention function improved bio heavy oil screw pump according to the present invention, the rotating body manufacturing step (S100), the fixed body manufacturing step (S200) and the coupling step (S300) It includes.

상기 회전체 제작단계(S100)는, 회전체 소재 준비공정(S110), 회전체 반제품 열처리공정(S120), 회전체 반제품 가공공정(S130), 회전체 반제품 질화처리공정(S140) 및 회전체 반제품 코팅공정(S150)을 포함한다.The rotating body manufacturing step (S100), the rotating material preparation step (S110), the rotating body semi-finished heat treatment step (S120), the rotating body semi-finished product processing step (S130), the rotating body semi-finished product nitriding process (S140) and the rotating body semi-finished product It includes a coating process (S150).

상기 회전체 소재 준비공정(S110)은, 크롬몰리브덴강으로 이루어진 회전체의 소재를 준비하고, 1차 황삭가공하여 반제품 상태의 회전체를 형성하도록 하는 것이다.The rotating material preparation step (S110) is to prepare the raw material of the rotating body made of chromium molybdenum steel, and to rough the primary to form a rotating body in a semi-finished state.

상기 크롬몰리브덴강(Chromium Molybdenum Steel)은 SCM440을 사용하는 것이 바람직하다The chromium molybdenum steel (Chromium Molybdenum Steel) is preferably used SCM440

상기 회전체 반제품 열처리공정(S120)은, 1차 황삭가공된 상기 회전체의 반제품을 담금질 및 뜨임 하게 되며, 이로 인해 적정 경도(Hardness)를 얻고 인성을 구비하게 된다.The rotor semi-finished heat treatment step (S120), quenching and tempering the semi-finished product of the first rough roughing process, thereby obtaining the appropriate hardness (Hardness) and has toughness.

또한, 상기 회전체 반제품 열처리공정(S120)은, 담금질 및 뜨임에 의해 경도가 부여되며, 상기 담금질(Qunching)은, 온도 830~880℃에서 1.5시간 보유하고 유냉하며, 뜨임(Tempering)은, 온도 620~650℃에서 3시간 보유하고 유냉하며 경도(Hardness)는 HRc 26~28인 것으로 1차 경도를 부여한다.In addition, the rotor semi-finished heat treatment step (S120), the hardness is given by quenching and tempering, the quenching (Qunching), the oil is retained and cooled for 1.5 hours at a temperature of 830 ~ 880 ℃, tempering (Tempering), It is kept for 3 hours at 620 ~ 650 ℃ and is oil-cooled. Hardness is HRc 26 ~ 28, which gives primary hardness.

상기 회전체 반제품 가공공정(S130)은, 열처리된 상기 회전체의 반제품을 질화처리가 용이하도록 가공하게 되는 것이며, 담금질 및 뜨임으로 1차 경도를 부여 한 후 정삭가공, 연마가공, 버핑가공 및 세정작업을 수행하게 되어 질화처리가 용이하도록 하는 것이다.The semi-finished rotating body processing step (S130) is to process the semi-finished product of the heat-treated rotating body to facilitate the nitriding treatment, and after finishing imparting primary hardness by quenching and tempering, finishing, polishing, buffing and cleaning The work is performed to facilitate nitriding.

상기 회전체 반제품 질화처리공정(S140)은, 가공처리된 상기 회전체의 반제품을 질화처리하는 것이다.The rotary semifinished product nitriding step (S140) is for nitriding the semifinished product of the processed rotary body.

또한, 상기 회전체 반제품 질화처리공정(S140)은, 프라즈마 질화(Prasma Nitriding)상태에서 온도는 450 ~ 510℃, 보유(Holding)시간은 24시간 이상으로 유지하며, 경화층 깊이는 0.20~0.25mm로 표면경도는 Hv900~1020으로 이루어진다.In addition, the rotating semi-finished product nitriding process (S140), the temperature in the plasma nitriding (Prasma Nitriding) state 450 ~ 510 ℃, holding time is maintained for 24 hours or more, the depth of the hardened layer is 0.20 ~ 0.25mm Furnace surface hardness is composed of Hv900 ~ 1020.

상기 회전체 반제품 코팅공정(S150)은, 질화처리된 상기 회전체의 반제품을 PVD 코팅처리하는 것이다.The rotating body semi-finished product coating step (S150) is to process the PVD coating of the semi-finished product of the rotating body nitrided.

또한, 상기 회전체 반제품 코팅공정(S150)은, PVD 코팅의 물질로는 DLC,Ti,Al,Cr,Si를 포함하며, 코팅 작업온도는 변형 방지를 위해 500℃ 이하에서 실시하며, PVD Coating의 특성은 박막표면경도(Hv)는 2000~3500, 마찰계수는 0.05~0.5, 코팅두께(㎛)는, 0.3~15, 코팅작업온도(℃)는, 200~500, 최대적용온도범위(℃)는, 300~1100 인 것이다.In addition, the rotor semi-finished coating process (S150), the material of the PVD coating includes DLC, Ti, Al, Cr, Si, the coating operation temperature is carried out at 500 ℃ or less to prevent deformation, the PVD coating The thin film surface hardness (Hv) is 2000 ~ 3500, the coefficient of friction is 0.05 ~ 0.5, the coating thickness (㎛) is 0.3 ~ 15, the coating working temperature (℃) is 200 ~ 500, the maximum application temperature range (℃) Is 300 to 1100.

또한, 상기 PVD 코팅은 물리기상증착법으로 저마찰계수 및 고강도, 내마모성을 얻을 수 있다In addition, the PVD coating can obtain a low coefficient of friction, high strength, and wear resistance by physical vapor deposition.

상기 고정체 제작단계(S200)는, 고정체 소재 준비공정(S210), 고정체 반제품 열처리공정(S220), 고정체 반제품 가공공정(S230), 고정체 반제품 질화처리공정(S240) 및 고정체 반제품 코팅공정(S250)을 포함한다.The fixture manufacturing step (S200), the fixture material preparation process (S210), the fixture semifinished product heat treatment step (S220), the fixture semifinished product processing step (S230), the fixture semifinished product nitriding treatment (S240) and the fixture semifinished product It includes a coating process (S250).

상기 고정체 소재 준비공정(S210)은, 합금공구강으로 이루어진 고정체 소재를 준비하고, 1차 황삭가공하여 반제품 상태의 고정체를 형성하도록 하는 것이다.The fixture material preparation step (S210) is to prepare a fixture material consisting of alloy steel ball, and to rough the primary process to form a fixture in a semi-finished state.

상기 고정체 반제품 열처리공정(S220)은, 1차 황삭가공된 상기 고정체 반제품을 담금질 및 뜨임 하게 되는 것이다.The fixture semifinished product heat treatment step (S220) is to quench and temper the fixture semifinished product subjected to the first rough machining.

또한, 상기 고정체 반제품 열처리공정(S220)은 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것으로, 1차 경도를 부여한다.In addition, the fixture semi-finished heat treatment step (S220) is given hardness by quenching and tempering, quenching (Qunching) is held for 1.5 hours at a temperature of 1000 ~ 1050 ℃ (Holding) and air-cooled, tempering (Tempering) temperature 560 Hold for 3 hours at ~ 650 ℃ air cooled to give a hardness of HRc 47 ~ 50, giving the primary hardness.

상기 고정체 반제품 가공공정(S230)은, 열처리된 상기 고정체의 반제품을 질화처리가 용이하도록 가공하게 되는 것으로, 고정체의 형상을 와이어 컷팅 및 방전가공으로 가공하고, 열변형 방지를 위한 안정화처리(Stabilizing Treatment)를 하며, 최종으로 정삭가공, 연마작업, 버핑 및 세정작업을 하게 된다.The fixture semifinished product processing step (S230) is to process the semi-finished product of the heat treatment of the fixture to facilitate the nitriding treatment, the shape of the fixture is processed by wire cutting and electric discharge machining, stabilization treatment to prevent thermal deformation (Stabilizing Treatment) and finally finishing, polishing, buffing and cleaning.

상기 고정체 반제품 질화처리공정(S240)은, 가공처리된 상기 고정체 반제품을 질화처리하는 것이다.The fixed semifinished product nitriding step (S240) is to nitride the processed semifinished product.

또한, 고정체 반제품 질화처리공정(S240)은, 프라즈마 질화(Prasma Nitriding)상태에서 온도는 450 ~ 510℃, 보유(Holding)시간은 24시간 이상으로 유지하며, 경화층 깊이는 0.20~0.25mm로 표면경도는 Hv900~1020 으로 이루진다.In addition, in the stationary semifinished product nitriding process (S240), the temperature is maintained at 450 to 510 ° C. and the holding time is 24 hours or longer in a plasma nitriding state, and the depth of the cured layer is 0.20 to 0.25 mm. Surface hardness is composed of Hv900 ~ 1020.

상기 고정체 반제품 코팅공정(S250)은, 질화처리된 상기 고정체 반제품을 PVD 코팅처리하는 것이다.The fixture semifinished product coating process (S250) is a PVD coating treatment of the nitride treated fixture semifinished product.

또한, 고정체 반제품 코팅공정(S250)은, PVD 코팅의 물질로는 DLC,Ti,Al,Cr,Si를 포함하며, 코팅 작업온도는 변형 방지를 위해 500℃ 이하에서 실시하며, PVD Coating의 특성은 박막표면경도(Hv)는 2000~3500, 마찰계수는 0.05~0.5, 코팅두께(㎛)는, 0.3~15, 코팅작업온도(℃)는, 200~500, 최대적용온도범위(℃)는, 300~1100 인 것이다.In addition, the fixture semi-finished coating process (S250), the material of the PVD coating includes DLC, Ti, Al, Cr, Si, the coating operation temperature is carried out below 500 ℃ to prevent deformation, the characteristics of the PVD coating Silver thin film surface hardness (Hv) is 2000 ~ 3500, friction coefficient is 0.05 ~ 0.5, coating thickness (㎛) is 0.3 ~ 15, coating working temperature (℃) is 200 ~ 500, maximum application temperature range (℃) is , 300 to 1100.

상기 결합단계(S300)는, 상기 회전체 제작단계(S100)에서 제작된 회전체를 상기 고정체 제작단계(S200)에서 제작된 고정체에 결합시키는 단계이다.The coupling step (S300) is a step of coupling the rotating body produced in the rotating body manufacturing step (S100) to the fixed body produced in the fixed body manufacturing step (S200).

이와 같이 고정체에 회전체를 열처리, 질화처리 및 코팅처리하여 구성요소를 '강대강"으로 형성하여 내마모성을 향상시켜 스크류펌프의 평균수명을 3개월에서 12개월 이상으로 할 수 있어 발전소 운영의 효율증대 및 안정적 운전이 가능하게 된다.In this way, the rotor is heat-treated, nitrided, and coated to form a component of 'strong steel' to improve abrasion resistance, thereby improving the life expectancy of the screw pump from 3 to 12 months. Increased and stable operation is possible.

도 7은 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크류펌프의 제2실시예의 제조방법 순서도이다.Figure 7 is a flow chart of a manufacturing method of a second embodiment of a screw pump for bio-heavy oil improved wear protection according to the present invention.

도 7을 참고하면, 본 발명에 따른 마모방지 기능이 향상된 바이오 중유용 스크류펌프의 제2실시예의 제조방법은, 회전체 제작단계(S100), 고정체 제작단계(S200) 및 결합단계(S300)를 포함하다.Referring to Figure 7, the manufacturing method of the second embodiment of the wear prevention function improved bio-heavy fuel screw pump according to the present invention, the rotating body manufacturing step (S100), the fixed body manufacturing step (S200) and the coupling step (S300) It includes.

또한, 제2실시예의 고정체를 인서트부재와 하우징으로 분리되며, 하우징은 인서트부재를 보호하고 중량 절감을 위해 비중량이 적은 알루미늄(Aluminium) 주조로 제작되며, 이중분리의 목적은 내부 인서트(Insert)부재에 경도를 부여하여 내구성과 펌프 수명을 연장하기 위함이다.In addition, the fixture of the second embodiment is separated into an insert member and a housing, and the housing is made of aluminum casting with a low specific gravity to protect the insert member and reduce weight, and the purpose of double separation is an internal insert. This is to extend the durability and pump life by giving hardness to the member.

상기 회전체 제작단계(S100)는, 회전체 소재 준비공정(S110), 회전체 반제품 열처리공정(S120), 회전체 반제품 가공공정(S130), 회전체 반제품 질화처리공정(S140) 및 회전체 반제품 코팅공정(S150)을 포함하는데, 제1실시예와 동일함으로 상세한 설명은 생략한다.The rotating body manufacturing step (S100), the rotating material preparation step (S110), the rotating body semi-finished heat treatment step (S120), the rotating body semi-finished product processing step (S130), the rotating body semi-finished product nitriding process (S140) and the rotating body semi-finished product It includes a coating process (S150), the same as in the first embodiment, detailed description thereof will be omitted.

상기 고정체 제작단계(S200)는, 인서트부재 소재 준비공정(S201), 인서트부재 반제품 열처리공정(S202), 인서트부재 반제품 가공공정(S203), 인서트부재 반제품 질화처리공정(S204), 인서트부재 코팅공정(S205) 및 고정체 반제품 주조공정(S206)을 포함한다.The fixing member manufacturing step (S200), insert member material preparation step (S201), insert member semi-finished heat treatment step (S202), insert member semi-finished product processing step (S203), insert member semi-finished product nitriding process (S204), insert member coating A step (S205) and a stationary semifinished product casting step (S206).

상기 인서트부재 소재 준비공정(S201)은, 합금공구강으로 이루어진 인서트부재 소재를 준비하고, 1차 황삭가공하여 반제품 상태의 인서트부재를 형성하도록 하는 것이다.The insert member material preparation step (S201) is to prepare an insert member material made of alloy tool steel, and to perform the first rough machining to form an insert member in a semi-finished state.

또한, 인서트부재는 작업공정 중 열 변형을 최소화하기 위해 합금공구강의 종류인 STD61을 사용하다. In addition, the insert member uses STD61, a type of alloy tool steel, to minimize thermal deformation during the working process.

상기 인서트부재 반제품 열처리공정(S202)은, 1차 황삭가공된 상기 인서트부재 반제품을 담금질 및 뜨임 하게 되는 것이다.The insert member semi-finished heat treatment step (S202) is to quench and temper the insert member semi-finished primary processing.

또한, 상기 인서트부재 반제품 열처리공정(S202)은 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것이다.In addition, the insert member semi-finished heat treatment step (S202) is given a hardness by quenching and tempering, quenching (Qunching) is held for 1.5 hours at a temperature of 1000 ~ 1050 ℃ (Holding) and air-cooled, tempering (Tempering) temperature 560 Hold for 3 hours at ~ 650 ℃ air cooled to have a hardness HRc 47 ~ 50.

상기 인서트부재 반제품 가공공정(S203)은, 열처리된 상기 인서트부재의 반제품을 질화처리가 용이하도록 가공하게 되는 것으로, 외관을 와이어 컷팅 및 방전가공하여 가공하고, 열변형 방지를 위한 안정화처리(Stabilizing Treatment)를 하며, 최종으로 정삭가공, 연마작업, 버핑 및 세정작업을 하게 된다.The insert member semi-finished product processing step (S203) is to be processed to facilitate the nitriding treatment of the semi-finished product of the insert member heat-treated, the appearance is processed by wire cutting and electric discharge processing, stabilizing treatment for preventing heat deformation ), And finally finishing, polishing, buffing and cleaning work.

상기 인서트부재 반제품 질화처리공정(S204)은, 가공처리된 상기 인서트부재 반제품을 질화처리하는 것이다.The insert member semi-finished product nitriding step (S204) is for nitriding the processed insert member semi-finished product.

또한, 상기 인서트부재 반제품 질화처리공정(S204)은, 프라즈마 질화(Prasma Nitriding) 상태에서 온도는 450 ~ 510℃, 보유(Holding)시간은 24시간 이상으로 유지하며, 경화층 깊이는 0.20~0.25mm로 표면경도는 Hv900~1020 으로 이루어진 것이다.In addition, the insert member semi-product nitriding treatment step (S204), the temperature is maintained at 450 ~ 510 ℃, holding time of 24 hours or more in the plasma nitriding state, the depth of the hardened layer is 0.20 ~ 0.25mm Furnace surface hardness is composed of Hv900 ~ 1020.

상기 인서트부재 코팅공정(S205)은, 질화처리된 상기 이너케이싱 반제품을 PVD 코팅처리하는 것이다.The insert member coating process (S205) is to PVD coating the semi-nitrided inner casing semi-finished product.

또한, 상기 인서트부재 코팅공정(S205)은, PVD 코팅의 물질로는 DLC,Ti,Al,Cr,Si를 포함하며, 코팅 작업온도는 변형 방지를 위해 500℃ 이하에서 실시하며, PVD Coating의 특성은 박막표면경도(Hv)는 2000~3500, 마찰계수는 0.05~0.5, 코팅두께(㎛)는, 0.3~15, 코팅작업온도(℃)는, 200~500, 최대적용온도범위(℃)는, 300~1100 인 것이다.In addition, the insert member coating process (S205), the material of the PVD coating includes DLC, Ti, Al, Cr, Si, the coating operation temperature is carried out at 500 ℃ or less to prevent deformation, the characteristics of the PVD coating Silver thin film surface hardness (Hv) is 2000 ~ 3500, friction coefficient is 0.05 ~ 0.5, coating thickness (㎛) is 0.3 ~ 15, coating working temperature (℃) is 200 ~ 500, maximum application temperature range (℃) is , 300 to 1100.

상기 고정체 반제품 주조공정(S206)은, 상기 인서트부재 코팅공정(S205)에서 형성된 인서트부재의 외면을 알류미늄 합금으로 주조하여 하우징을 하는 것이다.The stationary semifinished product casting step (S206) is to cast the outer surface of the insert member formed in the insert member coating step (S205) with an aluminum alloy to make a housing.

상기 하우징(Housing)의 재질은 알루미늄 합금강(Aluminium Aolly Casting)의 AC8A-T6로 주조한다.The material of the housing is cast with AC8A-T6 of aluminum alloy casting.

상기 주조방법은 완성된 인서트(Insert)부재를 주물의 내부형상을 만들기 위해 주형에 삽입하는 모래형 "코어(Core)"에 삽입하여 주조작업을 수행하며, 주조 후 인스트부재 내부는 주물사의 소착, PVD 코팅의 박리,고온의 열에 의한 비틀림 및 변형이 없도록 하고, 최종으로 외관 가공으로 고정체 제작을 완료한다.    The casting method is performed by inserting the completed insert (Insert) in the sand-type "core (Core)" to be inserted into the mold to make the internal shape of the casting, the casting member inside the casting member sintering , PVD coating is not peeled off, there is no twisting and deformation caused by high temperature heat, and the final body is completed by appearance processing.

상기 결합단계(S300)는, 상기 회전체 제작단계(S100)에서 제작된 회전체를 상기 고정체 제작단계(S200)에서 제작된 고정체에 결합시키는 것이다.The coupling step (S300) is to couple the rotating body produced in the rotating body manufacturing step (S100) to the fixed body produced in the fixed body manufacturing step (S200).

이와 같이 고정체를 인서트부재와 하우징의 이중형으로 제작하여 자중을 감소시킬 수 있고, 인서크부재와 회전체를 열처리, 질화처리 및 코팅처리하여 구성요소를 '강대강"으로 형성하여 내마모성을 향상시켜 스크루펌프의 평균수명을 3개월에서 12개월 이상으로 할 수 있어 발전소 운영의 효율증대 및 안정적 운전이 가능하게 된다.In this way, the fixed body can be manufactured as a double type of the insert member and the housing to reduce its own weight. The insert member and the rotating body can be heat treated, nitrided and coated to form the component as 'steel steel' to improve wear resistance. The average life span of the screw pump can be from 3 months to 12 months or more, which increases efficiency of plant operation and enables stable operation.

본 발명은 첨부된 도면에 도시된 일 실시예를 참고로 설명한 것이나, 당해 기술 분야의 통상의 지식을 가진 자들에게는 다양한 변형 및 다른 실시예가 가능하다는 점이 이해될 것이다.Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, it will be understood that various modifications and other embodiments are possible to those skilled in the art.

10: 이너케이싱
11: 인서트부재
12: 하우징
20: 스핀들 스크루
30: 아이들 스크루
40: 질화층
50: PVD 코팅층10: inner casing
11: Insert member
12: housing
20: spindle screw
30: children screw
40: nitride layer
50: PVD coating layer

Claims (14)

펌프 케이싱의 내부에 설치되는 고정체인 이너케이싱과, 상기 고정체에 결합되는 회전체를 설치하되, 상기 회전체는, 이너케이싱의 중앙에 길이방향으로 설치되어진 스핀들 스크루와, 상기 스핀들 스크루에 결합되어 회전되는 아이들 스크루를 포함하며,
상기 고정체는 합금공구강이고,
상기 회전체는 크롬몰리브덴강으로 이루어지며,
상기 고정체 및 회전체는 열처리된 후 질화층이 형성되며, 상기 질화층 위에 PVD 코팅층을 형성하도록 하며,
상기 이너케이싱의 열처리는 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프.An inner casing, which is a fixed body installed inside the pump casing, and a rotating body coupled to the fixed body, wherein the rotating body is coupled to the spindle screw and a spindle screw installed in a longitudinal direction at the center of the inner casing; Includes a rotating idler screw,
The fixture is an alloy tool steel,
The rotating body is made of chromium molybdenum steel,
The fixture and the rotor are heat treated to form a nitride layer, and to form a PVD coating layer on the nitride layer,
The heat treatment of the inner casing is given hardness by quenching and tempering, quenching (Holding) is held and air-cooled for 1.5 hours at a temperature of 1000 ~ 1050 ℃, tempering (tempering) for 3 hours at a temperature of 560 ~ 650 ℃ Bio-heavy oil screw pump with improved wear protection, characterized in that the air-cooled holding hardness HRc 47 ~ 50. 펌프 케이싱의 내부에 설치되는 고정체인 이너케이싱과, 상기 고정체에 결합되는 회전체를 설치하되, 상기 회전체는, 이너케이싱의 중앙에 길이방향으로 설치되어진 스핀들 스크루와, 상기 스핀들 스크루에 결합되어 회전되는 아이들 스크루를 포함하며,
상기 이너케이싱은 인서트부재의 외부에 알루미늄 합금으로 주조하여 형성하며,
상기 인서트부재는 합금공구강이고,
상기 회전체는 크롬몰리브덴강으로 이루어지며,
상기 고정체 및 회전체는 열처리된 후 질화층이 형성되며, 상기 질화층 위에 PVD 코팅층을 형성하도록 하며,
상기 인서트부재의 열처리는 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프.
An inner casing, which is a fixed body installed inside the pump casing, and a rotating body coupled to the fixed body, wherein the rotating body is coupled to the spindle screw and a spindle screw installed in a longitudinal direction at the center of the inner casing; Includes a rotating idler screw,
The inner casing is formed by casting an aluminum alloy on the outside of the insert member,
The insert member is an alloy tool steel,
The rotating body is made of chromium molybdenum steel,
The fixture and the rotor are heat treated to form a nitride layer, and to form a PVD coating layer on the nitride layer,
The heat treatment of the insert member is given hardness by quenching and tempering, quenching (Holding) is held and air-cooled for 1.5 hours at a temperature of 1000 ~ 1050 ℃, tempering (tempering) for 3 hours at a temperature of 560 ~ 650 ℃ Bio-heavy oil screw pump with improved wear protection, characterized in that the air-cooled holding hardness HRc 47 ~ 50.
삭제delete 삭제delete 제1항 또는 제2항에 있어서,
상기 회전체의 열처리층은, 담금질 및 뜨임에 의해 경도가 부여되며, 상기 담금질(Qunching)은, 온도 830~880℃에서 1.5시간 보유하고 유냉하며, 뜨임(Tempering)은, 온도 620~650℃에서 3시간 보유하고 유냉하며 경도(Hardness)는 HRc 26~28인 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프.
The method according to claim 1 or 2,
The heat treatment layer of the rotating body, the hardness is given by quenching and tempering, the quenching (Qunching), the oil is retained and cooled for 1.5 hours at a temperature of 830 ~ 880 ℃, tempering (Tempering), at a temperature of 620 ~ 650 ℃ It is oil-cooled for 3 hours and the hardness (Hardness) is a bio-heavy oil screw pump with improved wear protection, characterized in that HRc 26 ~ 28.
제1항 또는 제2항에 있어서,
상기 질화층은, 프라즈마 질화(Prasma Nitriding)상태에서 온도는 450 ~ 510℃, 보유(Holding)시간은 24시간 이상으로 유지하며, 경화층 깊이는 0.20~0.25mm로 표면경도는 Hv900~1020 으로 이루어진 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프.
The method according to claim 1 or 2,
The nitride layer, the temperature in the plasma nitriding (Prasma Nitriding) state is maintained at 450 ~ 510 ℃, holding time of 24 hours or more, the depth of the hardened layer is 0.20 ~ 0.25mm and the surface hardness is made of Hv900 ~ 1020 Bio heavy oil screw pump with improved wear protection, characterized in that.
제1항 또는 제2항에 있어서,
상기 PVD 코팅층은, PVD 코팅의 물질로는 DLC,Ti,Al,Cr,Si를 포함하며, 코팅 작업온도는 변형 방지를 위해 500℃ 이하에서 실시하며, PVD Coating의 특성은 박막표면경도(Hv)는 2000~3500, 마찰계수는 0.05~0.5, 코팅두께(㎛)는, 0.3~15, 코팅작업온도(℃)는, 200~500, 최대적용온도범위(℃)는, 300~1100 인 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프.
The method according to claim 1 or 2,
The PVD coating layer, the material of the PVD coating includes DLC, Ti, Al, Cr, Si, the coating operation temperature is carried out below 500 ℃ to prevent deformation, the characteristics of the PVD coating thin film surface hardness (Hv) Is 2000 ~ 3500, coefficient of friction is 0.05 ~ 0.5, coating thickness (㎛) is 0.3 ~ 15, coating working temperature (℃) is 200 ~ 500, maximum application temperature range (℃) is 300 ~ 1100 Bio heavy oil screw pump with improved wear protection.
크롬몰리브덴강으로 이루어진 회전체의 소재를 준비하고, 1차 황삭가공하여 반제품 상태의 회전체를 형성하도록 하는 회전체 소재 준비공정과, 1차 황삭가공된 상기 회전체의 반제품을 담금질 및 뜨임 하게 되는 회전체 반제품 열처리공정과, 열처리된 상기 회전체의 반제품을 질화처리가 용이하도록 가공하게 되는 회전체 반제품 가공공정과, 가공처리된 상기 회전체의 반제품을 질화처리하는 회전체 반제품 질화처리공정과, 질화처리된 상기 회전체의 반제품을 PVD 코팅처리하는 회전체 반제품 코팅공정을 포함하는 회전체 제작단계;
합금공구강으로 이루어진 고정체 소재를 준비하고, 1차 황삭가공하여 반제품 상태의 고정체를 형성하도록 하는 고정체 소재 준비공정과, 1차 황삭가공된 상기 고정체 반제품을 담금질 및 뜨임 하게 되는 고정체 반제품 열처리공정과, 열처리된 상기 고정체의 반제품을 질화처리가 용이하도록 가공하게 되는 고정체 반제품 가공공정과, 가공처리된 상기 고정체 반제품을 질화처리하는 고정체 반제품 질화처리공정과, 질화처리된 상기 고정체 반제품을 PVD 코팅처리하는 고정체 반제품 코팅공정을 포함하는 고정체 제작단계;
상기 회전체 제작단계에서 제작된 회전체를 상기 고정체 제작단계에서 제작된 고정체에 결합시키는 결합단계;을 포함하는 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제조방법.
It is to prepare the material of the rotating body made of chromium molybdenum steel, the first rough processing to form a rotating body of the semi-finished product, and to quench and temper the semi-finished product of the first rough machining A semi-finished rotating body semi-finished product, a semi-finished rotating body for easy nitriding the semi-finished semi-finished product of the heat-treated rotating body, and a semi-finished rotating body semi-finished nitriding process for nitriding the semi-finished product of the processed rotating body; A rotating body manufacturing step including a rotating body semi-finished product coating process for PVD coating the semi-finished product of the nitrated body;
A fixture material preparation process for preparing a fixture material consisting of an alloyed oral cavity, and roughing first to form a fixture in a semifinished state, and a fixture semifinished product for quenching and tempering the first roughened fixture semifinished product. A heat treatment step, a fixture semifinished product processing step of processing the semi-finished product of the heat-fixed fixture to facilitate nitriding treatment, a fixture semifinished product nitriding treatment step of nitriding the processed fixture semifinished product, and the nitriding treatment Fixture manufacturing step comprising a fixture semifinished coating process for PVD coating the semi-finished fixture;
And a coupling step of coupling the rotating body produced in the rotating body manufacturing step to the fixed body produced in the fixing body manufacturing step.
크롬몰리브덴강으로 이루어진 회전체의 소재를 준비하고, 1차 황삭가공하여 반제품 상태의 회전체를 형성하도록 하는 회전체 소재 준비공정과, 1차 황삭가공된 상기 회전체의 반제품을 담금질 및 뜨임 하게 되는 회전체 반제품 열처리공정과, 열처리된 상기 회전체의 반제품을 질화처리가 용이하도록 가공하게 되는 회전체 반제품 가공공정과, 가공처리된 상기 회전체의 반제품을 질화처리하는 회전체 반제품 질화처리공정과, 질화처리된 상기 회전체의 반제품을 PVD 코팅처리하는 회전체 반제품 코팅공정을 포함하는 회전체 제작단계;
합금공구강으로 이루어진 인서트부재 소재를 준비하고, 1차 황삭가공하여 반제품 상태의 인서트부재를 형성하도록 하는 인서트부재 소재 준비공정과, 1차 황삭가공된 상기 인서트부재 반제품을 담금질 및 뜨임 하게 되는 인서트부재 반제품 열처리공정과, 열처리된 상기 인서트부재의 반제품을 질화처리가 용이하도록 가공하게 되는 인서트부재 반제품 가공공정과, 가공처리된 상기 인서트부재 반제품을 질화처리하는 인서트부재 반제품 질화처리공정과, 질화처리된 상기 인서트부재 반제품을 PVD 코팅처리하는 인서트부재 코팅공정과, 상기 인서트부재 코팅공정에서 형성된 인서트부재의 외면을 알류미늄 합금으로 주조하는 고정체 반제품 주조공정을 포함하는 고정체 제작단계;
상기 회전체 제작단계에서 제작된 회전체를 상기 고정체 제작단계에서 제작된 고정체에 결합시키는 결합단계;을 포함하는 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제조방법.
It is to prepare a material of the rotating body made of chromium molybdenum steel, the first rough processing to form a rotating body in the semi-finished state, and to quench and temper the semi-finished product of the first rough machining A semi-finished rotating body semi-finished product, a semi-finished rotating body for easy nitriding the semi-finished semi-finished product of the heat-treated rotating body, and a semi-finished rotating body semi-finished nitriding process for nitriding the semi-finished product of the processed rotating body; A rotating body manufacturing step including a rotating body semi-finished product coating process of PVD coating the semi-finished product of the nitridized body;
An insert member material preparation process for preparing an insert member material made of alloy steel, and forming a insert member in a semi-finished state by first rough machining, and an insert member semi-finished product for quenching and tempering the insert member semi-finished product which is first rough processed. A heat treatment process, an insert member semi-finished product processing process for easily nitriding the semi-finished product of the heat-treated insert member, an insert member semi-product nitriding process for nitriding the processed insert member semi-finished product, and the nitrided treatment A stationary manufacturing step including an insert member coating process for PVD coating an insert member semi-finished product and a stationary semi-product casting process for casting an outer surface of the insert member formed in the insert member coating process with an aluminum alloy;
And a coupling step of coupling the rotating body produced in the rotating body manufacturing step to the fixed body produced in the fixing body manufacturing step.
제8항에 있어서,
상기 고정체 반제품 열처리공정은 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제조방법.
The method of claim 8,
The stationary semi-finished heat treatment process is given hardness by quenching and tempering, quenching (Holding) is held for 1.5 hours at a temperature of 1000 ~ 1050 ℃ (Holding) and air-cooled, tempering (Tempering) 3 at a temperature of 560 ~ 650 ℃ Method for producing a bio-fuel oil screw pump with improved wear protection, characterized in that the hardness HRc 47 ~ 50 by air retention.
제9항에 있어서, 상기 인서트부재 반제품 열처리공정은 담금질 및 뜨임에 의해 경도가 부여되며, 담금질(Qunching)은 온도 1000~1050℃에서 1.5시간 보유(Holding)하고 공냉하며, 뜨임(Tempering)은 온도 560~650℃에서 3시간 보유하고 공냉하여 경도 HRc 47~50인 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제조방법.10. The method of claim 9, wherein the insert member semi-finished heat treatment process is given hardness by quenching and tempering, quenching (Holding) is held and air-cooled for 1.5 hours at a temperature of 1000 ~ 1050 ℃, Tempering (Tempering) temperature Method for producing a bio-fuel oil screw pump with improved wear protection, characterized in that the hardness HRc 47 ~ 50 by holding for 3 hours at 560 ~ 650 ℃. 제8항 또는 제9항에 있어서,
상기 회전체 반제품 열처리공정은, 담금질 및 뜨임에 의해 경도가 부여되며, 상기 담금질(Qunching)은, 온도 830~880℃에서 1.5시간 보유하고 유냉하며, 뜨임(Tempering)은, 온도 620~650℃에서 3시간 보유하고 유냉하며 경도(Hardness)는 HRc 26~28인 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제조방법.
The method according to claim 8 or 9,
The rotatable semi-finished heat treatment process is given hardness by quenching and tempering, the quenching (Qunching), the oil is retained for 1.5 hours at a temperature of 830 ~ 880 ℃, tempering (Tempering), at a temperature of 620 ~ 650 ℃ Retaining 3 hours oil-cooled and the hardness (Hardness) HRc 26 ~ 28 method for producing a bio-heavy oil screw pump with improved wear protection, characterized in that.
제8항 또는 제9항에 있어서,
상기 회전체 반제품 질화처리공정, 고정체 반제품 질화처리공정 및 인서트부재 반제품 질화처리공정은, 프라즈마 질화(Prasma Nitriding) 상태에서 온도는 450 ~ 510℃, 보유(Holding)시간은 24시간 이상으로 유지하며, 경화층 깊이는 0.20~0.25mm로 표면경도는 Hv900~1020 으로 이루어진 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제조방법.
The method according to claim 8 or 9,
The rotary semifinished product nitriding process, the fixed semifinished product nitriding process, and the insert member semifinished product nitriding process are maintained at a temperature of 450 to 510 ° C. and a holding time of at least 24 hours in a plasma nitriding state. , The depth of the hardened layer is 0.20 ~ 0.25mm Surface hardness is Hv900 ~ 1020 The production method of the bio-heavy oil screw pump with improved wear protection, characterized in that consisting of.
제8항 또는 제9항에 있어서,
상기 회전체 반제품 코팅공정, 고정체 반제품 코팅공정 및 인서트부재 코팅공정은, PVD 코팅의 물질로는 DLC,Ti,Al,Cr,Si를 포함하며, 코팅 작업온도는 변형 방지를 위해 500℃ 이하에서 실시하며, PVD Coating의 특성은 박막표면경도(Hv)는 2000~3500, 마찰계수는 0.05~0.5, 코팅두께(㎛)는, 0.3~15, 코팅작업온도(℃)는, 200~500, 최대적용온도범위(℃)는, 300~1100 인 것을 특징으로 하는 마모방지 기능이 향상된 바이오 중유용 스크루펌프의 제조방법.
The method according to claim 8 or 9,
The rotor semi-finished product coating process, stationary semi-finished product coating process and insert member coating process, the material of the PVD coating includes DLC, Ti, Al, Cr, Si, the coating operation temperature is below 500 ℃ to prevent deformation The characteristics of PVD coating are thin film surface hardness (Hv) of 2000 ~ 3500, friction coefficient of 0.05 ~ 0.5, coating thickness (㎛), 0.3 ~ 15, coating working temperature (℃), 200 ~ 500, max. Application temperature range (° C.) is a method for manufacturing a screw pump for bio-heavy oil, characterized in that the wear protection function is improved, characterized in that 300 ~ 1100.
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KR20030040711A (en) * 2001-11-15 2003-05-23 삼성광주전자 주식회사 Method for manufacturing crank shaft of hermetic reciprocating compressor
KR20060121730A (en) * 2005-05-24 2006-11-29 제너럴 일렉트릭 캄파니 Compressor front stub shaft and turbine compressor shaft
KR20080056754A (en) * 2005-10-05 2008-06-23 하트웨어, 인코포레이티드 Axial Flow Pumps with Multiple Groove Rotors
KR20100020686A (en) * 2008-08-13 2010-02-23 (주) 시.알. 씨스템 Vane vacuum pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030040711A (en) * 2001-11-15 2003-05-23 삼성광주전자 주식회사 Method for manufacturing crank shaft of hermetic reciprocating compressor
KR20060121730A (en) * 2005-05-24 2006-11-29 제너럴 일렉트릭 캄파니 Compressor front stub shaft and turbine compressor shaft
KR20080056754A (en) * 2005-10-05 2008-06-23 하트웨어, 인코포레이티드 Axial Flow Pumps with Multiple Groove Rotors
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