CN107068318A - It is a kind of for magnetic material of transformer and preparation method thereof - Google Patents
It is a kind of for magnetic material of transformer and preparation method thereof Download PDFInfo
- Publication number
- CN107068318A CN107068318A CN201710181026.4A CN201710181026A CN107068318A CN 107068318 A CN107068318 A CN 107068318A CN 201710181026 A CN201710181026 A CN 201710181026A CN 107068318 A CN107068318 A CN 107068318A
- Authority
- CN
- China
- Prior art keywords
- parts
- boron
- magnetic material
- transformer
- nickel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000696 magnetic material Substances 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910052796 boron Inorganic materials 0.000 claims abstract description 40
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 38
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 38
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 36
- VASIZKWUTCETSD-UHFFFAOYSA-N oxomanganese Chemical compound [Mn]=O VASIZKWUTCETSD-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 22
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 21
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 21
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 21
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 21
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 19
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000853 adhesive Substances 0.000 claims abstract description 19
- 230000001070 adhesive effect Effects 0.000 claims abstract description 19
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 19
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 19
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 18
- 238000002844 melting Methods 0.000 claims description 32
- 230000008018 melting Effects 0.000 claims description 32
- 150000001875 compounds Chemical class 0.000 claims description 28
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 27
- 239000001257 hydrogen Substances 0.000 claims description 24
- 229910052739 hydrogen Inorganic materials 0.000 claims description 24
- 230000005291 magnetic effect Effects 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 14
- 238000005245 sintering Methods 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000007493 shaping process Methods 0.000 claims description 8
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 7
- 238000003723 Smelting Methods 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 7
- 238000006356 dehydrogenation reaction Methods 0.000 claims description 7
- 229910052748 manganese Inorganic materials 0.000 claims description 7
- 239000011572 manganese Substances 0.000 claims description 7
- 238000003801 milling Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000001694 spray drying Methods 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 11
- 239000003595 mist Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 230000000116 mitigating effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
- H01F1/09—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials mixtures of metallic and non-metallic particles; metallic particles having oxide skin
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/005—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides comprising a particular metallic binder
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/12—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on oxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Soft Magnetic Materials (AREA)
Abstract
The present invention discloses a kind of for magnetic material of transformer and preparation method thereof, is related to transformer technology field, the magnetic material for transformer includes the raw material of following component：40~50 parts of iron oxide, 10~20 parts of neodymium, 5~10 parts of nickel, 0.1~0.3 part of boron, 0.03~0.1 part of calcium carbonate, 0.5~2 part of chromium oxide, 13~18 parts of adhesive, 2~5 parts of ferro-boron, 0.2~0.5 part of zirconium, 1~3 part of magnesia, 0.5~0.8 part of manganese monoxide, 3~5 parts of antioxidant；The magnetic material intensity is high, and service life is long, and manufacture craft is simple, saves the time, reduces time cost, improves economic benefit, is adapted to promote.
Description
Technical field
The invention belongs to transformer technology field, and in particular to a kind of magnetic material and its preparation side for transformer
Method.
Background technology
Usually said magnetic material refers to ferromagnetic substance, is ancient and the quite varied functional material of purposes, and thing
The magnetic of matter was just recognized and applied by people before 3000, and such as ancient Chinese native magnet is used as compass.
Modem magnetic materials have been widely used among our life, for example, permanent-magnet material is used as into motor, applied to transformer
In core material, the magneto-optic disk used as memory, computer magnetic recording floppy disk etc..Said in big bit information, magnetic
Material is closely related with informationization, automation, electromechanical integration, national defence, the every aspect of national economy.
The development experience of magnetic material is from inorganic to organic, solid-state to liquid, macroscopic view are seen to being situated between, electronics magnetic order to core
Magnetic order ferromagnetic material, single type show excellent magnetic property and overall characteristic to compound.Magnetic material is due to dividing
Class standard is different with emphasis, there is different classification.General magnetic material can be divided into by application type classification:Permanent magnetism material
Material, soft magnetic materials etc..Magnetic material be primarily referred to as by transition elements iron, cobalt, nickel and its alloy etc. constitute can directly or
Practice midwifery the material of magnetisation.From application function, magnetic material is divided into：Soft magnetic materials, permanent-magnet material, magnetic recording-square magnetic material
The species such as material, gyromagnetic material.Magnetic material is the important foundation functional material of electronics industry, is widely used in computer, electronics
The daily living article such as the industrial circles such as device, communication, automobile and Aero-Space and household electrical appliance, toy for children, with the world
Economic and science and technology fast development, the demand of magnetic material will be unprecedented wide.Magnetic material is in electronics, computer, information
The tradition such as communication, medical treatment, Aero-Space, automobile, wind-powered electricity generation, environmental protection and energy saving and emerging field all play an important role.Magnetic
Material has turned into promotes hi-tech development and the irreplaceable material of modern economy progress, and development prospect is optimistic.
Transformer magnetic material has higher requirement, existing magnetic material intensity to the magnetic behavior of magnetic material
Low, service life is short, complex manufacturing technology, and loses time.
The content of the invention
The invention provides a kind of for magnetic material of transformer and preparation method thereof, the magnetic material intensity is high,
Service life is long, and manufacture craft is simple, saves the time.
In order to solve the problem of prior art is present, adopt the following technical scheme that：
A kind of magnetic material for transformer, includes the raw material of following component：40~50 parts of iron oxide, 10~20 parts of neodymium, nickel 5
~10 parts, 0.1~0.3 part of boron, 0.03~0.1 part of calcium carbonate, 0.5~2 part of chromium oxide, 13~18 parts of adhesive, ferro-boron 2
~5 parts, 0.2~0.5 part of zirconium, 1~3 part of magnesia, 0.5~0.8 part of manganese monoxide, 3~5 parts of antioxidant.
It is preferred that, the magnetic material for transformer includes the raw material of following component：45~48 parts of iron oxide, neodymium
13~17 parts, 7~9 parts of nickel, 0.1~0.3 part of boron, 0.05~0.08 part of calcium carbonate, 1~1.7 part of chromium oxide, adhesive 15~16
Part, 3~4 parts of ferro-boron, 0.3~0.4 part of zirconium, 1.7~2 parts of magnesia, 0.6~0.7 part of manganese monoxide, antioxidant 3~5
Part.
It is preferred that, the magnetic material for transformer includes the raw material of following component：47 parts of iron oxide, 14 parts of neodymium,
8 parts of nickel, 0.2 part of boron, 0.06 part of calcium carbonate, 1.3 parts of chromium oxide, 15.6 parts of adhesive, 3.4 parts of ferro-boron, 0.3 part of zirconium, oxygen
Change 1.8 parts of magnesium, 0.65 part of manganese monoxide, 4 parts of antioxidant.
A kind of method for preparing the magnetic material for transformer, comprises the following steps：
（1）Iron oxide, neodymium, nickel, boron, calcium carbonate, chromium oxide, adhesive, ferro-boron, zirconium, magnesia, an oxygen are weighed by formula
Change in manganese input sand mill, add water, be sanded 20~30 minutes, put into mixer, after adding antioxidant stirring 2 hours, enter
Row spray drying；
（2）By step（1）Magnetic material compound melt at high temperature after ingot casting again, compound is added to vacuum melting furnace
In, heating rate is 50~100 DEG C/min, and vacuum melting temperature is 1630 DEG C~1860 DEG C, and smelting time is 6h~10h, is melted
Compound in vacuum melting furnace is cooled after refining, rate of temperature fall is 30 DEG C/min；
（3）Step will be completed（2）Compound be placed in hydrogen crushing furnace that to carry out hydrogen quick-fried, vacuumize, 240~280 DEG C of temperature control, inject hydrogen
Gas inhales 2~3h of hydrogen by raw material, then heats to 500~550 DEG C, carries out dehydrogenation, is come out of the stove after finally cooling down, and is crushed in airflow milling
Into fine powder；
（4）By step（3）Gained feed powder, is put into appropriate mould, is orientated and suppresses in magnetic field intensity is 1.8T magnetic field
Shaping, after be placed at a temperature of 1250~1300 DEG C, heat preservation sintering 3~5 hours, obtain into parison under 3~6% partial pressure of oxygen
Part；
（5）Moulded blank is put in and is tempered 3~5h at 800~900 DEG C, then 8~10h, air cooling is tempered at 400~500 DEG C again
The magnetic material for transformer is obtained afterwards.
It is preferred that, the vacuum environment is that finger pressure is the environment less than 100pa.
It is preferred that, the step（2）Middle heating rate is 80 DEG C/min, and vacuum melting temperature is 1700 DEG C~1800 DEG C.
It is preferred that, the step（3）Middle powder particle size is 3~3.5 μm.
It is preferred that, the step（4）Middle heat preservation sintering 4 hours.
Compared with prior art, it has the advantages that the present invention：
Containing raw materials such as iron oxide, nickel, boron, zirconium, magnesia in magnetic material of the present invention for transformer, directly improve
The intensity of the magnetic material；Antioxidant is added in the feed and is well mixed, and can be good at mitigating subsequent process
Middle magnet surface aoxidizes the influence to magnet performance；Vacuum environment is used the step of melting is carried out, having further functioned as prevents
The effect of magnet oxidation, extends its service life；Each raw material sequentially passes through that grinding stirring drying, melting, hydrogen is quick-fried, high pressure
The steps such as shaping, sintering, tempering, preparation technology is simple, and preparation time is short, reduces time cost, improves economic benefit, is adapted to
Promote.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.These embodiments be merely to illustrate the present invention and without
In limitation the scope of the present invention.
Embodiment 1
The present embodiment is related to a kind of magnetic material for transformer, includes the raw material of following component：40 parts of iron oxide, neodymium 10
Part, 5 parts of nickel, 0.1 part of boron, 0.03 part of calcium carbonate, 0.5 part of chromium oxide, 13 parts of adhesive, 2 parts of ferro-boron, 0.2 part of zirconium, oxidation
1 part of magnesium, 0.5 part of manganese monoxide, 3 parts of antioxidant.
A kind of method for preparing the magnetic material for transformer, comprises the following steps：
（1）Iron oxide, neodymium, nickel, boron, calcium carbonate, chromium oxide, adhesive, ferro-boron, zirconium, magnesia, an oxygen are weighed by formula
Change in manganese input sand mill, add water, be sanded 20 minutes, put into mixer, after adding antioxidant stirring 2 hours, sprayed
Mist is dried；
（2）By step（1）Magnetic material compound melt at high temperature after ingot casting again, compound is added to vacuum melting furnace
In, heating rate is 50 DEG C/min, and vacuum melting temperature is 1630 DEG C DEG C, and smelting time is 6h, by vacuum melting furnace after melting
Interior compound is cooled, and rate of temperature fall is 30 DEG C/min；
（3）Step will be completed（2）Compound be placed in hydrogen crushing furnace that to carry out hydrogen quick-fried, vacuumize, 240 DEG C of temperature control, injection hydrogen allows
Raw material inhales hydrogen 2, then heats to 500~550 DEG C, carries out dehydrogenation, is come out of the stove after finally cooling down, fine powder is broken into airflow milling,
Powder particle size is 3~3.5 μm；
（4）By step（3）Gained feed powder, is put into appropriate mould, is orientated and suppresses in magnetic field intensity is 1.8T magnetic field
Shaping, after be placed at a temperature of 1250~1300 DEG C, heat preservation sintering 3 hours, obtain moulded blank under 3% partial pressure of oxygen；
（5）Moulded blank is put in and is tempered 3h at 800 DEG C, then 8h is tempered at 400 DEG C again, obtains described for transformation after air cooling
The magnetic material of device.
Wherein, the vacuum environment is that finger pressure is the environment less than 100pa.
Embodiment 2
The present embodiment is related to a kind of magnetic material for transformer, includes the raw material of following component：50 parts of iron oxide, neodymium 20
Part, 10 parts of nickel, 0.3 part of boron, 0.1 part of calcium carbonate, 2 parts of chromium oxide, 18 parts of adhesive, 5 parts of ferro-boron, 0.5 part of zirconium, magnesia
3 parts, 0.8 part of manganese monoxide, 5 parts of antioxidant.
A kind of method for preparing the magnetic material for transformer, comprises the following steps：
（1）Iron oxide, neodymium, nickel, boron, calcium carbonate, chromium oxide, adhesive, ferro-boron, zirconium, magnesia, an oxygen are weighed by formula
Change in manganese input sand mill, add water, be sanded 30 minutes, put into mixer, after adding antioxidant stirring 2 hours, sprayed
Mist is dried；
（2）By step（1）Magnetic material compound melt at high temperature after ingot casting again, compound is added to vacuum melting furnace
In, heating rate is 100 DEG C/min, and vacuum melting temperature is 1860 DEG C, and smelting time is 10h, by vacuum melting furnace after melting
Interior compound is cooled, and rate of temperature fall is 30 DEG C/min；
（3）Step will be completed（2）Compound be placed in hydrogen crushing furnace that to carry out hydrogen quick-fried, vacuumize, 280 DEG C of temperature control, injection hydrogen allows
Raw material inhales hydrogen 3h, then heats to 500~550 DEG C, carries out dehydrogenation, is come out of the stove after finally cooling down, fine powder is broken into airflow milling,
Powder particle size is 3~3.5 μm；
（4）By step（3）Gained feed powder, is put into appropriate mould, is orientated and suppresses in magnetic field intensity is 1.8T magnetic field
Shaping, after be placed at a temperature of 1250~1300 DEG C, heat preservation sintering 5 hours, obtain moulded blank under 6% partial pressure of oxygen；
（5）Moulded blank is put in and is tempered 5h at 900 DEG C, then 10h is tempered at 500 DEG C again, obtains described for becoming after air cooling
The magnetic material of depressor.
Wherein, the vacuum environment is that finger pressure is the environment less than 100pa.
Embodiment 3
The present embodiment is related to a kind of magnetic material for transformer, includes the raw material of following component：45 parts of iron oxide, neodymium 13
Part, 7 parts of nickel, 0.1 part of boron, 0.05 part of calcium carbonate, 1 part of chromium oxide, 15 parts of adhesive, 3 parts of ferro-boron, 0.3 part of zirconium, magnesia
1.7 parts, 0.6 part of manganese monoxide, 3 parts of antioxidant.
A kind of method for preparing the magnetic material for transformer, comprises the following steps：
（1）Iron oxide, neodymium, nickel, boron, calcium carbonate, chromium oxide, adhesive, ferro-boron, zirconium, magnesia, an oxygen are weighed by formula
Change in manganese input sand mill, add water, be sanded 25 minutes, put into mixer, after adding antioxidant stirring 2 hours, sprayed
Mist is dried；
（2）By step（1）Magnetic material compound melt at high temperature after ingot casting again, compound is added to vacuum melting furnace
In, heating rate is 80 DEG C/min, and vacuum melting temperature is 1700 DEG C, and smelting time is 8h, by vacuum melting furnace after melting
Compound is cooled, and rate of temperature fall is 30 DEG C/min；
（3）Step will be completed（2）Compound be placed in hydrogen crushing furnace that to carry out hydrogen quick-fried, vacuumize, 240~280 DEG C of temperature control, inject hydrogen
Gas inhales hydrogen 2h by raw material, then heats to 500~550 DEG C, carries out dehydrogenation, comes out of the stove, is broken into airflow milling after finally cooling down
Fine powder, powder particle size is 3~3.5 μm；
（4）By step（3）Gained feed powder, is put into appropriate mould, is orientated and suppresses in magnetic field intensity is 1.8T magnetic field
Shaping, after be placed at a temperature of 1250~1300 DEG C, heat preservation sintering 4 hours, obtain moulded blank under 5% partial pressure of oxygen；
（5）Moulded blank is put in and is tempered 4h at 850 DEG C, then 9h is tempered at 430 DEG C again, obtains described for transformation after air cooling
The magnetic material of device.
Wherein, the vacuum environment is that finger pressure is the environment less than 100pa.
Embodiment 4
The present embodiment is related to a kind of magnetic material for transformer, 48 parts of iron oxide, 17 parts of neodymium, 9 parts of nickel, 0.3 part of boron, carbonic acid
0.08 part of calcium, 1.7 parts of chromium oxide, 16 parts of adhesive, 4 parts of ferro-boron, 0.4 part of zirconium, 2 parts of magnesia, 0.7 part of manganese monoxide,
5 parts of antioxidant.
A kind of method for preparing the magnetic material for transformer, comprises the following steps：
（1）Iron oxide, neodymium, nickel, boron, calcium carbonate, chromium oxide, adhesive, ferro-boron, zirconium, magnesia, an oxygen are weighed by formula
Change in manganese input sand mill, add water, be sanded 25 minutes, put into mixer, after adding antioxidant stirring 2 hours, sprayed
Mist is dried；
（2）By step（1）Magnetic material compound melt at high temperature after ingot casting again, compound is added to vacuum melting furnace
In, heating rate is 80 DEG C/min, and vacuum melting temperature is 1800 DEG C, and smelting time is 8, will be mixed after melting in vacuum melting furnace
Close material to be cooled, rate of temperature fall is 30 DEG C/min；
（3）Step will be completed（2）Compound be placed in hydrogen crushing furnace that to carry out hydrogen quick-fried, vacuumize, 240~280 DEG C of temperature control, inject hydrogen
Gas inhales hydrogen 2h by raw material, then heats to 500~550 DEG C, carries out dehydrogenation, comes out of the stove, is broken into airflow milling after finally cooling down
Fine powder, powder particle size is 3~3.5 μm；
（4）By step（3）Gained feed powder, is put into appropriate mould, is orientated and suppresses in magnetic field intensity is 1.8T magnetic field
Shaping, after be placed at a temperature of 1250~1300 DEG C, heat preservation sintering 4 hours, obtain moulded blank under 6% partial pressure of oxygen；
（5）Moulded blank is put in and is tempered 3~5h at 880 DEG C, then 8~10h is tempered at 430 DEG C again, obtains described after air cooling
Magnetic material for transformer.
Wherein, the vacuum environment is that finger pressure is the environment less than 100pa.
Embodiment 5
The present embodiment is related to a kind of magnetic material for transformer, includes the raw material of following component：47 parts of iron oxide, neodymium 14
Part, 8 parts of nickel, 0.2 part of boron, 0.06 part of calcium carbonate, 1.3 parts of chromium oxide, 15.6 parts of adhesive, 3.4 parts of ferro-boron, 0.3 part of zirconium,
1.8 parts of magnesia, 0.65 part of manganese monoxide, 4 parts of antioxidant.
A kind of method for preparing the magnetic material for transformer, comprises the following steps：
（1）Iron oxide, neodymium, nickel, boron, calcium carbonate, chromium oxide, adhesive, ferro-boron, zirconium, magnesia, an oxygen are weighed by formula
Change in manganese input sand mill, add water, be sanded 20 ~ 30 minutes, put into mixer, after adding antioxidant stirring 2 hours, carry out
Spray drying；
（2）By step（1）Magnetic material compound melt at high temperature after ingot casting again, compound is added to vacuum melting furnace
In, heating rate is 80 DEG C/min, and vacuum melting temperature is 1780 DEG C, and smelting time is 6h~10h, by vacuum melting after melting
Compound is cooled in stove, and rate of temperature fall is 30 DEG C/min；
（3）Step will be completed（2）Compound be placed in hydrogen crushing furnace that to carry out hydrogen quick-fried, vacuumize, 240~280 DEG C of temperature control, inject hydrogen
Gas inhales hydrogen 2.5h by raw material, then heats to 500~550 DEG C, carries out dehydrogenation, is come out of the stove after finally cooling down, and is crushed in airflow milling
Into fine powder, powder particle size is 3~3.5 μm；
（4）By step（3）Gained feed powder, is put into appropriate mould, is orientated and suppresses in magnetic field intensity is 1.8T magnetic field
Shaping, after be placed at a temperature of 1250~1300 DEG C, heat preservation sintering 4 hours, obtain moulded blank under 5% partial pressure of oxygen；
（5）Moulded blank is put in and is tempered 4h at 860 DEG C, then 9h is tempered at 420 DEG C again, obtains described for transformation after air cooling
The magnetic material of device.
Wherein, the vacuum environment is that finger pressure is the environment less than 100pa.
From above-described embodiment as can be seen that in the magnetic material of the present invention for transformer containing iron oxide, nickel,
The raw materials such as boron, zirconium, magnesia, directly enhance the intensity of the magnetic material；Antioxidant is added in the feed and is mixed
Uniformly, it can be good at mitigating influence of the magnet surface oxidation to magnet performance in subsequent process；Adopted the step of melting is carried out
With vacuum environment, the effect for preventing that magnet from aoxidizing is further functioned as, its service life is extended；Each raw material is sequentially passed through
The steps such as grinding stirring drying, melting, quick-fried hydrogen, high-pressure molding, sintering, tempering, preparation technology is simple, and preparation time is short, reduction
Time cost, improves economic benefit, is adapted to promote.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
1. a kind of magnetic material for transformer, it is characterised in that include the raw material of following component：40~50 parts of iron oxide,
10~20 parts of neodymium, 5~10 parts of nickel, 0.1~0.3 part of boron, 0.03~0.1 part of calcium carbonate, 0.5~2 part of chromium oxide, adhesive 13~
18 parts, 2~5 parts of ferro-boron, 0.2~0.5 part of zirconium, 1~3 part of magnesia, 0.5~0.8 part of manganese monoxide, antioxidant 3~5
Part.
2. it is used for the magnetic material of transformer according to claim 1, it is characterised in that include the raw material of following component：Oxygen
Change 45~48 parts of iron, 13~17 parts of neodymium, 7~9 parts of nickel, 0.1~0.3 part of boron, 0.05~0.08 part of calcium carbonate, chromium oxide 1~1.7
Part, 15~16 parts of adhesive, 3~4 parts of ferro-boron, 0.3~0.4 part of zirconium, 1.7~2 parts of magnesia, manganese monoxide 0.6~0.7
Part, 3~5 parts of antioxidant.
3. it is used for the magnetic material of transformer according to claim 1, it is characterised in that include the raw material of following component：Oxygen
Change 47 parts of iron, 14 parts of neodymium, 8 parts of nickel, 0.2 part of boron, 0.06 part of calcium carbonate, 1.3 parts of chromium oxide, 15.6 parts of adhesive, ferro-boron
3.4 parts, 0.3 part of zirconium, 1.8 parts of magnesia, 0.65 part of manganese monoxide, 4 parts of antioxidant.
4. a kind of method for preparing the magnetic material for being used for transformer described in any one of claims 1 to 3, it is characterised in that bag
Include following steps：
（1）Iron oxide, neodymium, nickel, boron, calcium carbonate, chromium oxide, adhesive, ferro-boron, zirconium, magnesia, an oxygen are weighed by formula
Change in manganese input sand mill, add water, be sanded 20~30 minutes, put into mixer, after adding antioxidant stirring 2 hours, enter
Row spray drying；
（2）By step（1）Magnetic material compound melt at high temperature after ingot casting again, compound is added to vacuum melting furnace
In, heating rate is 50~100 DEG C/min, and vacuum melting temperature is 1630 DEG C~1860 DEG C, and smelting time is 6h~10h, is melted
Compound in vacuum melting furnace is cooled after refining, rate of temperature fall is 30 DEG C/min；
（3）Step will be completed（2）Compound be placed in hydrogen crushing furnace that to carry out hydrogen quick-fried, vacuumize, 240~280 DEG C of temperature control, inject hydrogen
Gas inhales 2~3h of hydrogen by raw material, then heats to 500~550 DEG C, carries out dehydrogenation, is come out of the stove after finally cooling down, and is crushed in airflow milling
Into fine powder；
（4）By step（3）Gained feed powder, is put into appropriate mould, is orientated and suppresses in magnetic field intensity is 1.8T magnetic field
Shaping, after be placed at a temperature of 1250~1300 DEG C, heat preservation sintering 3~5 hours, obtain into parison under 3~6% partial pressure of oxygen
Part；
（5）Moulded blank is put in and is tempered 3~5h at 800~900 DEG C, then 8~10h, air cooling is tempered at 400~500 DEG C again
The magnetic material for transformer is obtained afterwards.
5. preparation method according to claim 4, it is characterised in that the vacuum environment is that finger pressure is less than 100pa
Environment.
6. preparation method according to claim 4, it is characterised in that the step（2）Middle heating rate is 80 DEG C/min,
Vacuum melting temperature is 1700 DEG C~1800 DEG C.
7. preparation method according to claim 4, it is characterised in that the step（3）Middle powder particle size is 3~3.5 μm.
8. preparation method according to claim 4, it is characterised in that the step（4）Middle heat preservation sintering 4 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181026.4A CN107068318A (en) | 2017-03-24 | 2017-03-24 | It is a kind of for magnetic material of transformer and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710181026.4A CN107068318A (en) | 2017-03-24 | 2017-03-24 | It is a kind of for magnetic material of transformer and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107068318A true CN107068318A (en) | 2017-08-18 |
Family
ID=59618339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710181026.4A Withdrawn CN107068318A (en) | 2017-03-24 | 2017-03-24 | It is a kind of for magnetic material of transformer and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107068318A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1469906A (en) * | 2000-10-13 | 2004-01-21 | ������������ʽ���� | Composition for synthetic resin composition and formed resin magnet |
| CN104347219A (en) * | 2013-08-06 | 2015-02-11 | 日立化成株式会社 | Composite magnetic material, method for manufacturing same and raw material components of composite magnetic material |
| CN105132786A (en) * | 2015-09-25 | 2015-12-09 | 西安科技大学 | Preparing method and application of high-strength soft magnetic composite material |
| US20160172085A1 (en) * | 2013-07-26 | 2016-06-16 | University Of Florida Research Foundation, Incorporated | Nanocomposite magnetic materials for magnetic devices and systems |
| CN105957685A (en) * | 2016-05-30 | 2016-09-21 | 南通万宝实业有限公司 | Permanent magnet for loudspeaker and preparation method thereof |
-
2017
- 2017-03-24 CN CN201710181026.4A patent/CN107068318A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1469906A (en) * | 2000-10-13 | 2004-01-21 | ������������ʽ���� | Composition for synthetic resin composition and formed resin magnet |
| US20160172085A1 (en) * | 2013-07-26 | 2016-06-16 | University Of Florida Research Foundation, Incorporated | Nanocomposite magnetic materials for magnetic devices and systems |
| CN104347219A (en) * | 2013-08-06 | 2015-02-11 | 日立化成株式会社 | Composite magnetic material, method for manufacturing same and raw material components of composite magnetic material |
| CN105132786A (en) * | 2015-09-25 | 2015-12-09 | 西安科技大学 | Preparing method and application of high-strength soft magnetic composite material |
| CN105957685A (en) * | 2016-05-30 | 2016-09-21 | 南通万宝实业有限公司 | Permanent magnet for loudspeaker and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102655050A (en) | Method for preparing high-performance high-temperature-resisting nanometer composite permanent magnet | |
| CN101572151A (en) | Method for manufacturing iron-silicon alloy composite magnetic powder core with magnetic conductivity mu being equal to 60 | |
| CN104347218A (en) | Novel sintered ndfeb permanent magnet and preparation method thereof | |
| CN104851544A (en) | Production method for low-energy-consumption neodymium-iron-boron magnetic material | |
| CN101209495A (en) | Preparation method of sintered NdFeB ball mill and hydrogenation | |
| CN105355412A (en) | Method for obtaining high-magnetism sintered NdFeB through sulfidizing | |
| CN104841938A (en) | Production method for high-performance special-shaped iron-cobalt soft magnetic alloy parts | |
| CN103632834B (en) | A kind of preparation method of high-performance anisotropic Nd-Fe-B | |
| CN106098279A (en) | A kind of robot Nd-Fe-B permanent magnet material and preparation method thereof | |
| CN107564649B (en) | A kind of method of diffusion preparing high-performance Ne-Fe-B magnetic powder | |
| CN105702406B (en) | A kind of MnAlC bases high coercive force permanent-magnetic material and preparation method thereof | |
| CN105855555B (en) | A kind of preparation method of iron cobalt magnetically soft alloy device | |
| CN108806910A (en) | Improve the coercitive method of neodymium-iron-boron magnetic material | |
| CN108314812A (en) | A kind of preparation method of memory-type magnetic rubber | |
| CN107068318A (en) | It is a kind of for magnetic material of transformer and preparation method thereof | |
| CN108766700A (en) | A kind of low heat treatment rare earth cobalt permanent magnets of elevated operating temperature and preparation method | |
| CN105439208A (en) | Method for preparing permanent magnet strontium ferrite by utilizing iron oxide red | |
| CN106409456B (en) | A kind of rare earth permanent magnet preparation process improving magnetic property | |
| CN111020341B (en) | Production process of powder sintered alnico permanent magnetic alloy | |
| CN107564648B (en) | A kind of deposition method preparing high-performance Ne-Fe-B magnetic powder | |
| CN105355413B (en) | It is a kind of to reduce the method that sintering temperature prepares magnetic sintered NdFeB high | |
| CN103898394A (en) | Preparation method of Fe-B block nano soft magnetic material | |
| CN105957674A (en) | High-coercivity Nd-Ce-Pr-Fe-B alloy thin strip permanent magnet material and preparation method thereof | |
| CN103632789B (en) | A kind of high remanent magnetism Nd-Fe-Bo permanent magnet material and preparation method thereof | |
| CN107311636B (en) | Preparation method of high-performance permanent magnetic ferrite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170818 |