CN106270370B - A kind of needle prick shape cylinder jacket and preparation method thereof - Google Patents
A kind of needle prick shape cylinder jacket and preparation method thereof Download PDFInfo
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- CN106270370B CN106270370B CN201610653986.1A CN201610653986A CN106270370B CN 106270370 B CN106270370 B CN 106270370B CN 201610653986 A CN201610653986 A CN 201610653986A CN 106270370 B CN106270370 B CN 106270370B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
The invention belongs to cylinder jacket fields, more particularly to a kind of needle prick shape cylinder jacket and preparation method thereof, method includes the following steps: a), prepare apply feed liquid, the painting feed liquid includes 0.05~0.4 part of anionic surfactant, 0.05~0.5 part of tannic acid, 0.15~0.7 part of caustic soda, 22~38 parts of diatomite, 3~10 parts of montmorillonite and 62~75 parts of water based on parts by weight；B), the painting feed liquid is sprayed at hollow cylinder mould inner wall, be dried, obtain the mold of inner wall surface adhering coating；C), the iron liquid after breeding is added in the mold of the inner wall surface adhering coating of rotation, depanning after cooling obtains liner blank part；D), the liner blank part successively carries out outer surface cleaning and processing and forming, obtains needle prick shape cylinder jacket.The needle prick shape cylinder jacket outer round surface that preparation method provided by the invention obtains has moderate dimensions, and the protuberance being evenly distributed.
Description
Technical field
The invention belongs to cylinder jacket fields more particularly to a kind of needle prick shape cylinder jacket and preparation method thereof.
Background technique
All-aluminium engine has many advantages, such as light-weight, perfect heat-dissipating, in industry by wide popularization and application, still
Its mechanical performance, wear-resisting property, thermal stability etc. are not so good as cast iron.For this purpose, adding cast iron bushing using aluminum cylinder in industry at present
Mode solves the problems, such as this.
The bushing also known as cylinder jacket of cast iron applied to aluminum cylinder, the biggish cylinder jacket of existing market demand is needle prick shape
Cylinder jacket.Needle prick shape cylinder jacket is directly cast by iron liquid, and the protuberance of similar needle prick shape, these needles thorn is distributed in outer surface
Shape can increase the binding force and heating conduction of cylinder jacket and aluminum cylinder, and then promote the radiating efficiency of engine.
The preparation of needle prick shape cylinder jacket generally includes following steps: allotment coating first；Then by paint spray in mold
Inner wall forms hole in mould inner wall after coating is dry；Iron liquid is poured into mold later, iron liquid is under the influence of centrifugal force
Cylindric cylinder liner blank is formed in a mold, while outer round surface forms protuberance；Cylinder liner blank is finally taken out, its table is washed
The coating in face, processing and forming obtain needle prick shape cylinder jacket.
The needle prick shape pattern of the outer surface of needle prick shape cylinder jacket is closely related with its preparation process condition, existing needle prick shape gas
The phenomenon that cylinder sleeve is unevenly distributed there is outer surface needle thorn size and needle thorn, causes the combination between cylinder jacket and aluminum cylinder strong
Degree and Percentage bound are poor, to influence the radiating efficiency of engine, seriously affect the service performance of needle prick shape cylinder jacket.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of needle prick shape cylinder jacket and preparation method thereof, using the present invention
Moderate dimensions are swelled in needle prick shape cylinder jacket outer surface made from providing method, and are evenly distributed.
The present invention provides a kind of preparation methods of needle prick shape cylinder jacket, comprising the following steps:
A), prepare to apply feed liquid, the anion surface active for applying feed liquid and based on parts by weight including 0.05~0.4 part
Agent, 0.05~0.5 part of tannic acid, 0.15~0.7 part of caustic soda, 22~38 parts of diatomite, 3~10 parts of montmorillonite and 62
~75 parts of water；
B), the painting feed liquid is sprayed at hollow cylinder mould inner wall, be dried, obtain inner wall surface adhering coating
Mold；
C), the iron liquid after breeding is added in the mold of the inner wall surface adhering coating of rotation, depanning after cooling,
Obtain liner blank part；
D), the liner blank part successively carries out outer surface cleaning and processing and forming, obtains needle prick shape cylinder jacket.
Preferably, the anionic surfactant includes neopelex, three ethyl alcohol of dodecyl benzene sulfonic acid
One of amine, surfactant AS and ammonium lauryl sulfate are a variety of.
Preferably, the permeability of the diatomite is 2~3；The bulk density of the diatomite is 0.33~0.65g/
cm3；The partial size of the diatomite is 100~800 mesh.
Preferably, the density of the montmorillonite is 2.0~2.7g/cm3；The expansion multiple of the montmorillonite is 30~50；
The partial size of the montmorillonite is 0.2~1 μm.
Preferably, the step b) are as follows:
Painting feed liquid is sprayed onto the hollow cylinder mould inner wall of centrifugal tube casting machine, is dried, it is attached to obtain inner wall surface
The mold of coating.
Preferably, the pressure for applying feed liquid sprinkling is 0.3~0.5MPa.
Preferably, the revolving speed of the centrifugal tube casting machine is 1350~1650r/min.
Preferably, the temperature of the hollow cylinder mould is 150~300 DEG C.
Preferably, the coating is 0.3~1.2mm in the coating thickness of mould inner wall.
Preferably, it is described apply feed liquid include based on parts by weight 0.1~0.2 part neopelex, 0.1~
0.3 part of tannic acid, 0.2~0.5 part of caustic soda, 25~35 parts of diatomite, 5~8 parts of montmorillonite and 65~70 parts of water.
The present invention also provides the preparation methods of another needle prick shape cylinder jacket, comprising the following steps:
A), prepare apply feed liquid, it is described apply feed liquid include based on parts by weight 0.1~0.2 part neopelex,
0.1~0.3 part of tannic acid, 0.2~0.5 part of caustic soda, 25~35 parts of diatomite, 5~8 parts of montmorillonite and 65~70 parts
Water；
B), the painting feed liquid is added in pressure coating tank；Starting is equipped with the centrifugal tube casting machine of mold, centrifugal tube casting machine
Revolving speed is set as 1400~1600r/min, and the temperature of mold is heated to 160~240 DEG C；Then will apply feed liquid 0.4~
The mould inner wall is sprayed under the ejection pressure of 0.5MPa；It is finally dried, obtains the mold of inner wall surface adhering coating,
Coating with a thickness of 0.35~1.2mm；
C), by iron liquid with silicon strontium inoculant according to mass ratio 100:(0.65~0.95) mix, carry out inoculation；It is described
Iron liquid includes the C of 3.31~3.62wt%, the S of 0.04~0.10wt%, the Si of 2.07~2.68wt%, 0.07~0.18wt%
P, the Mn of 0.62~0.94wt%, the Cr of 0.27~0.38wt%, the Cu of 0.12~0.48wt% and the Fe of surplus；Then will
Bonded hard ferrite magnet control after breeding is poured into the mold of the inner wall surface adhering coating of rotation at 1480~1550 DEG C, cold
But depanning after, obtains liner blank part；76~92s of time of the cooling, 680~800 DEG C of temperature of the depanning；
D), cleared up using outer surface of the centrifugal shot-blasting machine to the liner blank part, clear up the shot of use
Diameter is 0.15~0.3mm, and the injection pressure of shot is 8~14kg in scale removal process, and the time of cleaning is 8~16s；Then right
Liner blank after cleaning carries out processing and forming, obtains needle prick shape cylinder jacket.
The present invention also provides a kind of needle prick shape cylinder jacket that above-mentioned technical proposal the method is prepared.
Preferably, multiple protuberances are distributed on the outer round surface of the needle prick shape cylinder jacket；The height individually swelled is
0.15~1.2mm；Sectional area of the single protuberance at protuberance average height 3/5 is 0.2~0.6mm2；Single protuberance is away from protuberance
Sectional area at the 0.2mm of root is 0.05~7mm2。
Preferably, the height of the single protuberance is 0.6~1.1mm.
Preferably, the single protuberance is being 0.2~0.7mm away from the sectional area at protuberance root 0.2mm2。
Preferably, the number of the protuberance on the outer round surface of the needle prick shape cylinder jacket is not less than 30/cm2。
Preferably, the number of the protuberance on the outer round surface of the needle prick shape cylinder jacket is 40~65/cm2。
Preferably, the shape of the protuberance is needling shape, bulb-shaped, mushroom-shaped, taper or coral shape.
Compared with prior art, the present invention provides a kind of needle prick shape cylinder jacket and preparation method thereof.It is provided by the invention
Preparation method the following steps are included: a), prepare to apply feed liquid, the feed liquid that applies includes 0.05~0.4 part of yin based on parts by weight
Ionic surface active agent, 0.05~0.5 part of tannic acid, 0.15~0.7 part of caustic soda, 22~38 parts of diatomite, 3~10 parts
Montmorillonite and 62~75 parts of water；B), the painting feed liquid is sprayed at hollow cylinder mould inner wall, is dried, obtains
The mold of inner wall surface adhering coating；C), the iron liquid after breeding is added to the mould of the inner wall surface adhering coating of rotation
In tool, depanning after cooling obtains liner blank part；D), the liner blank part successively carries out outer surface cleaning and molding
Processing, obtains needle prick shape cylinder jacket.The present invention is optimized by the content to the constituent and each ingredient that apply feed liquid,
The painting feed liquid for being used to prepare needle prick shape cylinder jacket being had excellent performance, can be in mold interior wall surfaces shape after the painting feed liquid is dry
At moderate dimensions, and the hole being evenly distributed, so that the outer round surface for the needle prick shape cylinder sleeve that subsequent technique is prepared has
Moderate dimensions, and the protuberance being evenly distributed, and then bond strength and Percentage bound between needle prick shape cylinder sleeve and aluminum cylinder are improved, it mentions
Rise the radiating efficiency of engine.The experimental results showed that using the outer circle table of needle prick shape cylinder jacket made from the method provided by the present invention
Protuberance is evenly distributed on face, the height of protuberance is 0.15~1.2mm, and the area of section individually swelled is 0.05~7mm2, often
Square centimeter quantity is not less than 30；The equally distributed projecting shape of needle prick shape cylinder jacket outer round surface be needling shape, bulb-shaped,
The irregular shapes such as mushroom-shaped, taper or coral shape.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the digital photograph figure of needle prick shape cylinder jacket made from embodiment 1 provided by the invention；
Fig. 2 is needle prick shape cylinder jacket made from embodiment 1 provided by the invention along cylinder sleeve shaft to the needle prick shape portion of shooting
The digital photograph figure of position；
Fig. 3 is the digital photograph figure of needle prick shape cylinder jacket made from embodiment 2 provided by the invention；
Fig. 4 is needle prick shape cylinder jacket made from embodiment 2 provided by the invention along cylinder sleeve shaft to the needle prick shape portion of shooting
The digital photograph figure of position；
Fig. 5 is the digital photograph figure of needle prick shape cylinder jacket made from embodiment 3 provided by the invention；
Fig. 6 is needle prick shape cylinder jacket made from embodiment 3 provided by the invention along cylinder sleeve shaft to the needle prick shape portion of shooting
The digital photograph figure of position.
Specific embodiment
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
Art personnel every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
The present invention provides a kind of preparation methods of needle prick shape cylinder jacket, comprising the following steps:
A), prepare to apply feed liquid, the anion surface active for applying feed liquid and based on parts by weight including 0.05~0.4 part
Agent, 0.05~0.5 part of tannic acid, 0.15~0.7 part of caustic soda, 22~38 parts of diatomite, 3~10 parts of montmorillonite and 62
~75 parts of water；
B), the painting feed liquid is sprayed at hollow cylinder mould inner wall, be dried, obtain inner wall surface adhering coating
Mold；
C), the iron liquid after breeding is added in the mold of the inner wall surface adhering coating of rotation, depanning after cooling,
Obtain liner blank part；
D), the liner blank part successively carries out outer surface cleaning and processing and forming, obtains needle prick shape cylinder jacket.
In preparation method provided by the invention, prepare to apply feed liquid first.Wherein, the painting feed liquid includes anionic surface
Activating agent, tannic acid, caustic soda, diatomite, montmorillonite and water.Wherein, the anionic surfactant includes but is not limited to ten
One of dialkyl benzene sulfonic acids sodium, dodecyl benzene sulfonic acid triethanolamine, surfactant AS and ammonium lauryl sulfate or
It is a variety of.In the present invention, the anionic surfactant is 0.05~0.4 parts by weight applying the content in feed liquid；In this hair
In one embodiment of bright offer, the anionic surfactant is 0.1~0.2 parts by weight applying the content in feed liquid.?
In the present invention, anionic surfactant is to foam that form small distribution equal applying feed liquid drying process in the effect in feed liquid that applies
Even hole guarantees to form protuberance in rough-cast forming process, and demoulds convenient for blank.
In the present invention, tannic acid is 0.05~0.5 parts by weight applying the content in feed liquid；At one provided by the invention
In embodiment, tannic acid is 0.1~0.3 parts by weight applying the content in feed liquid.In the present invention, tannic acid is in applying feed liquid
Effect is played the role of reducing viscosity of the coating to react generation sodium tannate (tannin lye) with caustic soda.
In the present invention, caustic soda is 0.15~0.7 parts by weight applying the content in feed liquid；In a reality provided by the invention
It applies in example, caustic soda is 0.2~0.5 parts by weight applying the content in feed liquid.In the present invention, caustic soda is in the effect applied in feed liquid
Sodium tannate (tannin lye) is generated with tannin-reaction to play the role of reducing viscosity of the coating.
In the present invention, diatomite is a kind of biogenic siliceous sedimentary rock, mainly by the remains institute of ancient times diatom
Composition.In one embodiment provided by the invention, the permeability of the diatomite is 2~3；It is provided by the invention another
In embodiment, the permeability of the diatomite is 2.7.In the present invention, the unit of the permeability of the diatomite is darcy
(Darcy).In one embodiment provided by the invention, the bulk density of the diatomite is 0.33~0.65g/cm3；At this
It invents in another embodiment provided, the bulk density of the diatomite is 0.33~3.5g/cm3.Provided by the invention
In one embodiment, the partial size of the diatomite is 100~800 mesh；In another embodiment provided by the invention, the silicon
The partial size of diatomaceous earth is 140~800 mesh.In the present invention, diatomite is 22~38 parts by weight applying the content in feed liquid；In this hair
In one embodiment of bright offer, diatomite is 25~35 parts by weight applying the content in feed liquid.In the present invention, diatomite exists
Applying the effect in feed liquid is to play insulation effect as the aggregate in coating, both can protect mold and mold is avoided to be burnt by molten iron
It is bad, and the metallographic structure that molten iron cooling velocity gets well cast iron can be reduced.
In the present invention, montmorillonite also known as montmorillonite or montmorillonite are a kind of alumino-silicate, main component eight
Face body hectorite microparticle.In one embodiment provided by the invention, the density of the montmorillonite is 2.0~2.7g/cm3；?
In another embodiment provided by the invention, the density of the montmorillonite is 2.5~2.6g/cm3.At one provided by the invention
In embodiment, the expansion multiple of the montmorillonite is 30~50.In one embodiment provided by the invention, the montmorillonite
Partial size is 0.2~1 μm.In the present invention, montmorillonite is 3~10 parts by weight applying the content in feed liquid；Provided by the invention
In one embodiment, montmorillonite is 5~8 parts by weight applying the content in feed liquid.
In the present invention, water is 62~75 parts applying the content in feed liquid；In one embodiment provided by the invention, water
It is 65~70 parts applying the content in feed liquid.In the present invention, water serves as solvent in applying feed liquid, in dissolution of coatings liquid
Other components.
In one embodiment provided by the invention, 12 for applying feed liquid and based on parts by weight including 0.1~0.2 part
Sodium alkyl benzene sulfonate, 0.1~0.3 part of tannic acid, 0.2~0.5 part of caustic soda, 25~35 parts of diatomite, 5~8 parts of illiteracy
De- stone and 65~70 parts of water.
In the present invention, directly anionic surfactant, tannic acid, caustic soda, diatomite, montmorillonite and water are mixed equal
It is even that the painting feed liquid can be obtained.
After getting out the painting feed liquid, the painting feed liquid is sprayed at hollow cylinder mould inner wall, the process specifically:
It after the hollow cylinder mould inner wall of paint spray to centrifugal tube casting machine, is dried, obtains inner wall surface adhering coating
Mold.Wherein, the pressure for applying feed liquid sprinkling is preferably 0.3~0.5MPa；The revolving speed of the centrifugal tube casting machine is preferably
1350~1650r/min, more preferably 1400~1600r/min；The temperature of the hollow cylinder mould is preferably 150~
300 DEG C, more preferably 160~240 DEG C.It after painting feed liquid is sprayed, is dried, being formed in coating drying process has hole
Coating obtain the mold of inner wall surface adhering coating after drying, the thickness of the coating is preferably 0.3~1.2mm,
More preferably 0.35~0.78mm.Hole is distributed on the coating.
After obtaining the mold of inner wall surface adhering coating, the iron liquid after breeding is added in the mold of rotation.Its
In, C, S, Si, P, Mn, Cr, Cu and Fe are contained in the iron liquid.In the present invention, content of the C in iron liquid is preferably
3.2~3.7wt%, more preferably 3.31~3.62wt%, most preferably 3.31wt%, 3.53wt% or 3.62wt%；The S
Content in iron liquid preferably≤0.15wt%, more preferably 0.04~0.1wt%, most preferably 0.04wt%, 0.08wt%
Or 0.1wt%；Content of the Si in iron liquid is preferably 2.0~2.8wt%, and more preferably 2.07~2.68wt% is optimal
It is selected as 2.07wt%, 2.37wt% or 2.68wt%；Content of the P in iron liquid is preferably 0.05~0.2wt%, more preferably
For 0.07~0.18wt%, most preferably 0.07wt%, 0.12wt% or 0.18wt%；Content of the Mn in iron liquid is preferred
For 0.5~1.0wt%, more preferably 0.62~0.94wt%, most preferably 0.62wt%, 0.71wt% or 0.94wt%；Institute
Stating content of the Cr in iron liquid is preferably 0.1~0.4wt%, more preferably 0.12~0.38wt%, most preferably 0.12wt%,
0.27wt% or 0.38wt%；Content of the Cu in iron liquid is preferably 0.1~0.5wt%, more preferably 0.12~
0.48wt%, most preferably 0.12wt%, 0.31wt% or 0.48wt%；Content of the Fe in iron liquid is preferably surplus.
In the present invention, the inovulant for breeding iron liquid use is preferably silicon strontium inoculant；The usage amount of the inovulant is preferably iron liquid
0.6~1.0wt% of quality, more preferably 0.65~0.95wt%；The initial temperature that mold is added in the iron liquid is preferably
1480~1550 DEG C；The initial temperature of the mold is preferably 150~300 DEG C, and more preferably 160~240 DEG C；The mold turns
Speed is preferably 1350~1650r/min, more preferably 1400~1600r/min.Iron liquid after breeding is added in the mold
Afterwards, then after cooling membrane, obtains liner blank part.Wherein, the time of the cooling is preferably 60~100s, more preferably
76~92s；The temperature of the depanning is preferably 680~800 DEG C.In the present invention, the liner blank part surface after membrane is viscous
Coating with mould inner wall.
After obtaining the liner blank part, the liner blank part successively carries out outer surface cleaning and processing and forming.
Wherein, the outer surface cleaning preferably uses centrifugal shot-blasting machine.One provided by the invention using centrifugal shot-blasting machine into
In the embodiment of row outer surface cleaning, the material used of clearing up is preferably diameter≤0.3mm shot, more preferably diameter
For the shot of 0.15~0.3mm；The injection pressure of the shot is preferably 3~15kg, more preferably 8~14kg；The surface
The time of cleaning is preferably 5~20s, more preferably 8~16s.The mode of the processing and forming is not particularly limited in the present invention,
Blank after removing surface is machined to by predetermined size using processing and forming mode well known to those skilled in the art.At
After type completion of processing, needle prick shape cylinder jacket product is obtained.
In one embodiment provided by the invention, needle prick shape cylinder jacket is specifically prepared in the following way:
A), prepare apply feed liquid, it is described apply feed liquid include based on parts by weight 0.1~0.2 part neopelex,
0.1~0.3 part of tannic acid, 0.2~0.5 part of caustic soda, 25~35 parts of diatomite, 5~8 parts of montmorillonite and 65~70 parts
Water；
B), the painting feed liquid is added in pressure coating tank；Starting is equipped with the centrifugal tube casting machine of mold, centrifugal tube casting machine
Revolving speed is set as 1400~1600r/min, and the temperature of mold is heated to 160~240 DEG C；Then will apply feed liquid 0.4~
The mould inner wall is sprayed under the ejection pressure of 0.5MPa；It is finally dried, obtains the mold of inner wall surface adhering coating,
Coating with a thickness of 0.35~1.2mm；
C), by iron liquid with silicon strontium inoculant according to mass ratio 100:(0.65~0.95) mix, carry out inoculation；It is described
Iron liquid includes the C of 3.31~3.62wt%, the S of 0.04~0.10wt%, the Si of 2.07~2.68wt%, 0.07~0.18wt%
P, the Mn of 0.62~0.94wt%, the Cr of 0.27~0.38wt%, the Cu of 0.12~0.48wt% and the Fe of surplus；Then will
Bonded hard ferrite magnet control after breeding is poured into the mold of the inner wall surface adhering coating of rotation at 1480~1550 DEG C, cold
But depanning after, obtains liner blank part；76~92s of time of the cooling, 680~800 DEG C of temperature of the depanning；
D), cleared up using outer surface of the centrifugal shot-blasting machine to the liner blank part, clear up the shot of use
Diameter is 0.15~0.3mm, and the injection pressure of shot is 8~14kg in scale removal process, and the time of cleaning is 8~16s；Then right
Liner blank after cleaning carries out processing and forming, obtains needle prick shape cylinder jacket.
The present invention also provides a kind of needle prick shape cylinder jacket of preparation of the method by adopting the above technical scheme.The present invention
In, multiple protuberances are distributed on the outer round surface of the needle prick shape cylinder jacket；The height individually swelled is 0.15~1.2mm, excellent
It is selected as 0.6~1.1mm, more preferably 0.67~1.05mm；Sectional area of the single protuberance at protuberance average height 3/5 is 0.2
~0.6mm2, preferably 0.25~0.58mm2；Single protuberance is being 0.05~7mm away from the sectional area at protuberance root 0.2mm2,
Preferably 0.1~1mm2, more preferably 0.2~0.7mm2, most preferably 0.21~0.62mm2；Outside the needle prick shape cylinder jacket
The number of protuberance on circular surfaces is preferably not less than 30/cm2, more preferably 40~65/cm2；The shape of the protuberance is preferred
For needling shape, bulb-shaped, mushroom-shaped, taper or coral shape.
The present invention is optimized by the content to the constituent and each ingredient that apply feed liquid, is had excellent performance
The painting feed liquid for being used to prepare needle prick shape cylinder jacket, moderate dimensions can be formed in mold interior wall surfaces after the painting feed liquid is dry, and
The hole being evenly distributed so that the outer round surface for the needle prick shape cylinder sleeve that subsequent technique is prepared has moderate dimensions, and divides
Cloth uniformly swells, and then improves bond strength and Percentage bound between needle prick shape cylinder sleeve and aluminum cylinder, promotes dissipating for engine
The thermal efficiency.The experimental results showed that uniformly being divided on outer round surface using needle prick shape cylinder jacket made from method provided by the invention
It is furnished with protuberance, protuberance is 0.15~1.2mm away from periphery height, and the area of section individually swelled is 0.05~7mm2, every square
Centimetre quantity is not less than 30；The equally distributed projecting shape of needle prick shape cylinder jacket outer round surface is needling shape, bulb-shaped, mushroom
The irregular shapes such as shape, taper or coral shape.
For the sake of becoming apparent from, it is described in detail below by following embodiment.
Embodiment 1
The preparation of needle prick shape cylinder jacket
1) Design of Coatings Formulation:
2) coating preparation
Anionic surfactant, tannin, caustic soda, diatomite, montmorillonite and water are added in stirring container, stirring is equal
It is even, obtain coating.
3) prepared by cylinder jacket finished product
3-1) cast iron materials melting: the pig iron, steel scrap being added in mandreless spinning and melted, basis after fusing
The alloy materials such as ferrosilicon, ferrophosphorus, manganese iron, ferrochrome, cathode copper, ferrous sulfide are added in spectrometer analysis result, pass through after fusing uniformly
Spectrometer carries out identification, obtains ingredient qualification iron liquid.Keep the mass percent of each ingredient in raw material as follows by fine tuning: carbon
3.62wt%, sulphur 0.04wt%, silicon 2.07wt%, phosphorus 0.18wt%, manganese 0.62wt%, chromium 0.12wt%, copper 0.48wt%, it is remaining
Amount is iron.
3-2) centrifugal casting: configured coating is added in pressure coating tank, pressure is adjusted to 0.5MPa；Starting centrifugation
Cast pipe machine, revolving speed are set as 1400r/min, and the temperature of mold is heated to 160 DEG C, then by paint spray to mould inner wall,
Paint thickness is 0.35mm, forms the hole of irregular distribution after coating is dry, turns after qualified bonded hard ferrite magnet is risen to 1520 DEG C
Enter into casting package, while silicon strontium inoculant is added according to the 0.65wt% ratio of iron liquid quality, carry out inoculation, then will
Bonded hard ferrite magnet control after breeding is poured into die cavity at 1480 DEG C, and by the cooling of mold, iron liquid is under the influence of centrifugal force
Cylindric cylinder liner blank is formed, while outer round surface forms equally distributed protuberance, total 92s cooling time, blank depanning temperature
700 DEG C of degree.
3-3) coating is cleared up: passing through the spray of 10kg using the shot of 0.15~0.3mm of diameter using centrifugal shot-blasting machine
Injection pressure cleans out the outer round surface coating of cylinder liner blank within the time of 12s, and processing and forming obtains needle prick shape cylinder jacket
Finished product.
Embodiment 2
The preparation of needle prick shape cylinder jacket
1) Design of Coatings Formulation:
2) coating preparation
Anionic surfactant, tannin, caustic soda, diatomite, montmorillonite and water are added in stirring container, stirring is equal
It is even, obtain coating.
3) prepared by cylinder jacket finished product
3-1) cast iron materials melting: the pig iron, steel scrap being added in mandreless spinning and melted, basis after fusing
The alloy materials such as ferrosilicon, ferrophosphorus, manganese iron, ferrochrome, cathode copper, ferrous sulfide are added in spectrometer analysis result, pass through after fusing uniformly
Spectrometer carries out identification, obtains ingredient qualification iron liquid.Keep the mass percent of each ingredient in raw material as follows by fine tuning: carbon
3.31wt%, sulphur 0.08wt%, silicon 2.68wt%, phosphorus 0.07wt%, manganese 0.94wt%, chromium 0.38wt%, copper 0.12wt%, it is remaining
Amount is iron.
3-2) centrifugal casting: configured coating is added in pressure coating tank, pressure is adjusted to 0.5MPa；Starting centrifugation
Cast pipe machine, revolving speed are set as 1600r/min, and the temperature of mold is heated to 240 DEG C, then by paint spray to mould inner wall,
Paint thickness is 1.2mm, forms equally distributed hole after coating is dry, is transferred to after qualified bonded hard ferrite magnet is risen to 1540 DEG C
In casting package, while silicon strontium inoculant is added according to the 0.95wt% ratio of iron liquid quality, carries out inoculation, then will breed
Bonded hard ferrite magnet control afterwards is poured into die cavity at 1500 DEG C, and by the cooling of mold, iron liquid is formed under the influence of centrifugal force
Cylindric cylinder liner blank, while outer round surface forms equally distributed protuberance, total 76s cooling time, blank mold clearing temperature 800
℃。
3-3) coating is cleared up: passing through the injection of 8kg using the shot of 0.15~0.3mm of diameter using centrifugal shot-blasting machine
Pressure cleans out the outer round surface coating of cylinder liner blank within the time of 16s, processing and forming, obtain needle prick shape cylinder jacket at
Product.
Embodiment 3
The preparation of needle prick shape cylinder jacket
1) Design of Coatings Formulation:
2) coating preparation
Anionic surfactant, tannin, caustic soda, diatomite, montmorillonite and water are added in stirring container, stirring is equal
It is even, obtain coating.
3) prepared by cylinder jacket finished product
3-1) cast iron materials melting: the pig iron, steel scrap being added in mandreless spinning and melted, basis after fusing
The alloy materials such as ferrosilicon, ferrophosphorus, manganese iron, ferrochrome, cathode copper, ferrous sulfide are added in spectrometer analysis result, pass through after fusing uniformly
Spectrometer carries out identification, obtains ingredient qualification iron liquid.Keep the mass percent of each ingredient in raw material as follows by fine tuning: carbon
3.53wt%, sulphur 0.10wt%, silicon 2.37wt%, phosphorus 0.12wt%, manganese 0.71wt%, chromium 0.27wt%, copper 0.31wt%, it is remaining
Amount is iron.
3-2) centrifugal casting: configured coating is added in pressure coating tank, pressure is adjusted to 0.4MPa；Starting centrifugation
Cast pipe machine, revolving speed are set as 1550r/min, and the temperature of mold is heated to 220 DEG C, then by paint spray to mould inner wall,
Paint thickness is 0.78mm, forms equally distributed hole after coating is dry, is transferred to after qualified bonded hard ferrite magnet is risen to 1590 DEG C
Silicon strontium inoculant is added into casting package, while according to the 0.78wt% ratio of iron liquid quality, carries out inoculation, it then will be pregnant
Bonded hard ferrite magnet control after educating is poured into die cavity at 1550 DEG C, by the cooling of mold, iron liquid shape under the influence of centrifugal force
At cylindric cylinder liner blank, while outer round surface forms equally distributed protuberance, total 84s cooling time, blank mold clearing temperature
680℃。
3-3) coating is cleared up: passing through the spray of 14kg using the shot of 0.15~0.3mm of diameter using centrifugal shot-blasting machine
Injection pressure cleans out the outer round surface coating of cylinder liner blank within the time of 8s, and processing and forming obtains needle prick shape cylinder jacket
Finished product.
Embodiment 4
The observation of needle prick shape cylinder jacket product surface needle prick shape
The outer surface of needle prick shape cylinder jacket made from Examples 1 to 3 is observed, as a result as follows:
1) the observation result of 1 product of embodiment is as depicted in figs. 1 and 2, wherein Fig. 1 is that embodiment 1 provided by the invention is made
The digital photograph figure of the needle prick shape cylinder jacket obtained, Fig. 2 is needle prick shape cylinder jacket made from embodiment 1 provided by the invention along cylinder
Cover the digital photograph figure at the needle prick shape position axially shot.Following quantized result: needle prick shape can be obtained according to Fig. 1 and Fig. 2
The height 0.25mm of the protuberance of cylinder jacket outer surface；
2) the observation result of 2 product of embodiment is as shown in Figure 3 and Figure 4, wherein Fig. 3 is that embodiment 2 provided by the invention is made
The digital photograph figure of the needle prick shape cylinder jacket obtained, Fig. 4 is needle prick shape cylinder jacket made from embodiment 2 provided by the invention along cylinder
Cover the digital photograph figure at the needle prick shape position axially shot.Following quantized result: needle prick shape can be obtained according to Fig. 3 and Fig. 4
Cylinder jacket outer surface average mark is furnished with multiple protuberances, and the shape of 80% or more protuberance is needling shape, bulb-shaped, mushroom-shaped, cone
Shape or coral shape, the protuberance average height 1.05mm of needle prick shape cylinder jacket outer surface, protuberance quantity every square centimeter is 41, single
A protuberance bottom section area 0.79mm2；Sectional area of the single protuberance at protuberance average height 3/5 is 0.58mm2；It is single grand
Rise is being 0.62mm away from the sectional area at protuberance root 0.2mm2；
3) the observation result of 3 product of embodiment is as shown in Figure 5 and Figure 6, wherein Fig. 5 is that embodiment 3 provided by the invention is made
The digital photograph figure of the needle prick shape cylinder jacket obtained, Fig. 6 is needle prick shape cylinder jacket made from embodiment 3 provided by the invention along cylinder
Cover the digital photograph figure at the needle prick shape position axially shot.Following quantized result: needle prick shape can be obtained according to Fig. 5 and Fig. 6
Cylinder jacket outer surface average mark is furnished with multiple protuberances, and the shape of 80% or more protuberance is needling shape, bulb-shaped, mushroom-shaped, cone
Shape or coral shape, the protuberance average height 0.67mm of needle prick shape cylinder jacket outer surface, protuberance quantity every square centimeter is 62, single
A protuberance bottom section area 0.356mm2；Sectional area of the single protuberance at protuberance average height 3/5 is 0.25mm2；It is single grand
Rise is being 0.21mm away from the sectional area at protuberance root 0.2mm2。
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (17)
1. a kind of preparation method of needle prick shape cylinder jacket, comprising the following steps:
A), prepare apply feed liquid, it is described apply feed liquid include based on parts by weight 0.05~0.4 part anionic surfactant,
0.05~0.5 part of tannic acid, 0.15~0.7 part of caustic soda, 22~38 parts of diatomite, 3~10 parts of montmorillonite and 62~
75 parts of water；
B), the painting feed liquid is sprayed at hollow cylinder mould inner wall, be dried, obtain the mould of inner wall surface adhering coating
Tool；
C), the iron liquid after breeding is added in the mold of the inner wall surface adhering coating of rotation, depanning after cooling obtains
Liner blank part；
D), the liner blank part successively carries out outer surface cleaning and processing and forming, obtains needle prick shape cylinder jacket.
2. preparation method according to claim 1, which is characterized in that the anionic surfactant includes dodecyl
One of benzene sulfonic acid sodium salt, dodecyl benzene sulfonic acid triethanolamine, surfactant AS and ammonium lauryl sulfate are a variety of.
3. preparation method according to claim 1, which is characterized in that the permeability of the diatomite is 2~3；The silicon
The bulk density of diatomaceous earth is 0.33~0.65g/cm3；The partial size of the diatomite is 100~800 mesh.
4. preparation method according to claim 1, which is characterized in that the density of the montmorillonite is 2.0~2.7g/cm3；
The expansion multiple of the montmorillonite is 30~50；The partial size of the montmorillonite is 0.2~1 μm.
5. preparation method according to claim 1, which is characterized in that the step b) are as follows:
The painting feed liquid is sprayed onto the hollow cylinder mould inner wall of centrifugal tube casting machine, is dried, it is attached to obtain inner wall surface
The mold of coating.
6. preparation method according to claim 5, which is characterized in that it is described apply feed liquid sprinkling pressure be 0.3~
0.5MPa。
7. preparation method according to claim 5, which is characterized in that the revolving speed of the centrifugal tube casting machine be 1350~
1650r/min。
8. preparation method according to claim 5, which is characterized in that the temperature of the hollow cylinder mould be 150~
300℃。
9. preparation method according to claim 1, which is characterized in that the coating with a thickness of 0.3~1.2mm.
10. preparation method according to claim 1, which is characterized in that the painting feed liquid includes 0.1 based on parts by weight~
0.2 part of neopelex, 0.1~0.3 part of tannic acid, 0.2~0.5 part of caustic soda, 25~35 parts of diatomite,
5~8 parts of montmorillonite and 65~70 parts of water.
11. a kind of preparation method of needle prick shape cylinder jacket, comprising the following steps:
A), prepare apply feed liquid, it is described apply feed liquid include based on parts by weight 0.1~0.2 part neopelex, 0.1
~0.3 part of tannic acid, 0.2~0.5 part of caustic soda, 25~35 parts of diatomite, 5~8 parts of montmorillonite and 65~70 parts
Water；
B), the painting feed liquid is added in pressure coating tank；Starting is equipped with the centrifugal tube casting machine of mold, the revolving speed of centrifugal tube casting machine
It is set as 1400~1600r/min, the temperature of mold is heated to 160~240 DEG C；Then feed liquid will be applied in 0.4~0.5MPa
Ejection pressure under be sprayed onto the mould inner wall；It is finally dried, obtains the mold of inner wall surface adhering coating, coating
With a thickness of 0.35~1.2mm；
C), by iron liquid with silicon strontium inoculant according to mass ratio 100:(0.65~0.95) mix, carry out inoculation；The iron liquid
The P of the S of C, 0.04~0.10wt%, the Si of 2.07~2.68wt%, 0.07~0.18wt% including 3.31~3.62wt%,
The Mn of 0.62~0.94wt%, the Cr of 0.27~0.38wt%, the Cu of 0.12~0.48wt% and the Fe of surplus；Then it will breed
Bonded hard ferrite magnet control afterwards is poured into the mold of the inner wall surface adhering coating of rotation at 1480~1550 DEG C, after cooling
Depanning obtains liner blank part；76~92s of time of the cooling, 680~800 DEG C of temperature of the depanning；
D), cleared up using outer surface of the centrifugal shot-blasting machine to the liner blank part, clear up the shot diameter of use
For 0.15~0.3mm, the injection pressure of shot is 8~14kg in scale removal process, and the time of cleaning is 8~16s；Then to cleaning
Liner blank afterwards carries out processing and forming, obtains needle prick shape cylinder jacket.
12. according to claim 1 or preparation method described in 11, which is characterized in that the outer round surface of the needle prick shape cylinder jacket
On multiple protuberances are distributed with；The height individually swelled is 0.15~1.2mm；Single protuberance cutting at protuberance average height 3/5
Area is 0.2~0.6mm2；Single protuberance is being 0.05~7mm away from the sectional area at protuberance root 0.2mm2。
13. preparation method according to claim 12, which is characterized in that the height of the single protuberance is 0.6~
1.1mm。
14. preparation method according to claim 12, which is characterized in that the single protuberance is away from protuberance root 0.2mm
The sectional area at place is 0.2~0.7mm2。
15. preparation method according to claim 12, which is characterized in that on the outer round surface of the needle prick shape cylinder jacket
The number of protuberance is not less than 30/cm2。
16. preparation method according to claim 15, which is characterized in that on the outer round surface of the needle prick shape cylinder jacket
The number of protuberance is 40~65/cm2。
17. preparation method according to claim 12, which is characterized in that the shape of the protuberance be needling shape, bulb-shaped,
Mushroom-shaped, taper or coral shape.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610653986.1A CN106270370B (en) | 2016-08-10 | 2016-08-10 | A kind of needle prick shape cylinder jacket and preparation method thereof |
| PCT/CN2016/112634 WO2018028125A1 (en) | 2016-08-10 | 2016-12-28 | Needle-shaped cylinder liner and preparation method therefor, and coating liquid for preparing needle-shaped cylinder liner |
| US16/322,118 US11193446B2 (en) | 2016-08-10 | 2016-12-28 | Needle-shaped cylinder liner and preparation method therefor, and coating liquid for preparing needle-shaped cylinder liner |
| EP17169659.4A EP3281990B1 (en) | 2016-08-10 | 2017-05-05 | Needle-shaped cylinder liner as well as method and coating solution for manufacturing the same |
| PL17169659T PL3281990T3 (en) | 2016-08-10 | 2017-05-05 | Needle-shaped cylinder liner as well as method and coating solution for manufacturing the same |
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| CN201610653986.1A CN106270370B (en) | 2016-08-10 | 2016-08-10 | A kind of needle prick shape cylinder jacket and preparation method thereof |
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| CN107654306A (en) * | 2017-07-25 | 2018-02-02 | 中原内配集团安徽有限责任公司 | A kind of high occlusal pattern cylinder sleeve and preparation method thereof |
| US11168642B2 (en) * | 2018-05-24 | 2021-11-09 | Tpr Co., Ltd. | Cylinder liner for cast-covering, and method for manufacturing cylinder block |
| CN108864777A (en) * | 2018-06-13 | 2018-11-23 | 中原内配集团安徽有限责任公司 | It is a kind of be used to form cylinder-barrel surface burr breed coating certainly |
| CN111852681A (en) * | 2020-07-28 | 2020-10-30 | 中原内配集团安徽有限责任公司 | Low-density burr cylinder jacket |
| CN111850386A (en) * | 2020-07-28 | 2020-10-30 | 中原内配集团安徽有限责任公司 | Burr cylinder jacket based on molybdenum-nickel alloy |
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