CN108461271A - A kind of preparation method of magnetic material - Google Patents
A kind of preparation method of magnetic material Download PDFInfo
- Publication number
- CN108461271A CN108461271A CN201810205234.8A CN201810205234A CN108461271A CN 108461271 A CN108461271 A CN 108461271A CN 201810205234 A CN201810205234 A CN 201810205234A CN 108461271 A CN108461271 A CN 108461271A
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- Prior art keywords
- preparation
- valve
- inspection
- pressure
- magnetic material
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Classifications
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- 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
-
- 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
- H01F1/04—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 metals or alloys
- H01F1/047—Alloys characterised by their composition
- H01F1/053—Alloys characterised by their composition containing rare earth metals
- H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
- H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
- H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
- H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
- H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
-
- 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
- H01F41/0266—Moulding; Pressing
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention discloses a kind of preparation methods of magnetic material, include the following steps：Dispensing：Common metal has following several：Neodymium metal, praseodymium neodymium, special boron, smart boron, copper, aluminium, gallium, terbium, cobalt, iron, dysprosium iron, ferro-niobium.Instrument, tool, auxiliary material etc.:Electronic scale, bar cropper, derusting polishing machine, rubber gloves, the mask of different size；S2, slab melting：Preparation → shove charge inspection → tundish and copper roller inspection → pass fire door inspection.Compared with the prior art, has following advantages：On the one hand it should improve magnet generation technique, strive the performance of product raising higher, it is more stable；On the other hand to be also dedicated to opening up the application market of bigger, this just not only needs the product that manufacturing enterprise provides, also provide corresponding technical support, increase the competitiveness of enterprise itself, preferably to apply enterprises service for sintered Nd-Fe-B permanent magnetic material, to promote the sustainable development of neodymium iron boron and related industry.
Description
Technical field
The present invention relates to a kind of magnetic materials, more specifically more particularly to a kind of preparation method of magnetic material.
Background technology
Currently, the yield of China's sintered Nd-Fe-B permanent magnetic material has ranked first in the world, it is real big producer, but
Domestic Nd-Fe-B permanent magnet material is mainly shown as that the heat of material is steady in gap also larger compared with external in terms of properties of product
Qualitative, inoxidizability does not solve thoroughly；Product magnetic property also less stable, large dispersion；Permanent magnet processing, magnetize technical matters
Deng still unqualified, these are all badly in need of further exploring, it should make full use of rare earth resources, the advantage of human resources in China, add
The dynamics of big technical research, for this purpose, it is proposed that a kind of preparation method of magnetic material.
Invention content
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of preparation of the magnetic material proposed
On the one hand method should improve magnet generation technique, strive the performance of product raising higher, more stable；On the other hand it also wants
It is dedicated to opening up the application market of bigger, this just not only needs the product that manufacturing enterprise provides, also provides corresponding technology
It supports, increases the competitiveness of enterprise itself, preferably to apply enterprises service for sintered Nd-Fe-B permanent magnetic material, to promote
The sustainable development of neodymium iron boron and related industry.
To achieve the above object, the present invention provides the following technical solutions：A kind of preparation method of magnetic material, including it is as follows
Step：
S1, dispensing：Common metal has following several：Neodymium metal, praseodymium neodymium, special boron, smart boron, copper, aluminium, gallium, terbium, cobalt, iron, dysprosium
Iron, ferro-niobium.Instrument, tool, auxiliary material etc.:Electronic scale, bar cropper, derusting polishing machine, the rubber of different size
Gloves, mask；
S2, slab melting：Preparation → shove charge inspection → tundish and copper roller inspection → pass fire door inspection → parameter setting → leakage
Gas inspection → baker → melting → refining → thermometric → casting → cooling；
S3, Zhi Fen workshop section：Zhi Fen workshop sections are responsible for the product after melting fine powder is made, and main process has broken hydrogen, coarse powder stirring, gas
Stream mill, fine powder stirring；
S4, hydrogen are broken：System automatically opens air bleeding valve, is closed when being vented to atmospheric pressure, and three argon gas import valve and successively open.Pressure
When reaching displacement pressure, one of argon gas imports valve and closes, other two are normally opened, and air bleeding valve automatically opens exhaust, so
Setting time is arrived repeatedly.Air bleeding valve is opened, and atmospheric pressure is vented to, and displacement is completed；
S5, coarse powder stirring：Agitator tank shut-off valve is opened, agitator tank exhaust canister is opened, observes pressure gauge, is wanted until meeting operation card
It asks.It is interrupted either on or off exhaust canister, observes pressure gauge, reach and close air bleeding valve after specified pressure, tonifying Qi when insufficient pressure reaches
Shut-off valve is closed after pressure；
S6, molding die installation and dismounting：Preparation → die-filling → press prepares → installs push-down head → installation is framed → and installs
Pressure head → verticality inspection → demoulding, moulding press magnetic-field measurement and adjustment：Calibration → magnetic-field measurement with adjust → is cleared out a gathering place, and is claimed
Powder：Preparation → feeding → feeding → blanking → title powder → replacement barrel → before powder is claimed to clear up and clear out a gathering place；
S7, press operation：Under cylinder class upper cylinder half → pause → orientation → compacting → pressurize → demagnetization → upper cylinder half on → lower cylinder on；Side
Under block class upper cylinder half → push down mold → side cylinder move back into → orientation → compacting → pressurize → demagnetization → side cylinder → upper cylinder half on；
S8, stripping rusting knot：Glove box charge valve, auxiliary material feeding box charge valve are opened, nitrogen is filled with；Oxygen analyser is observed, when oxygen contains
Amount is down to ＜ 0.05%, can cut bag, cuts bag → stripping packaging bag → stripping inner membrance → pendulum basin, and behaviour's vehicle will be sintered basin and take out, puts in stove
It sets on circulation vehicle.
Preferably, low trade mark product manufacturing process：Dispensing → ingot casting → broken → in broken → coarse powder stirring → airflow milling →
Fine powder stirs.
Preferably, high trade mark product manufacturing process：Dispensing → slab → hydrogen is broken → and coarse powder stirring → airflow milling → fine powder stirs
It mixes.
The technique effect and advantage of the present invention：Compared with the prior art, has following advantages：On the one hand it should improve magnet
Production technology strives the performance of product raising higher, more stable；On the other hand to be also dedicated to developing bigger applies city
, this just not only needs the product that manufacturing enterprise provides, and also provides corresponding technical support, increases the competition of enterprise itself
Power, preferably to apply enterprises service for sintered Nd-Fe-B permanent magnetic material, to promote holding for neodymium iron boron and related industry
Supervention exhibition.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
The every other embodiment obtained is put, shall fall within the protection scope of the present invention.
Embodiment
A kind of preparation method of magnetic material, includes the following steps：
S1, dispensing：Common metal has following several：Neodymium metal, praseodymium neodymium, special boron, smart boron, copper, aluminium, gallium, terbium, cobalt, iron, dysprosium
Iron, ferro-niobium.Instrument, tool, auxiliary material etc.:Electronic scale, bar cropper, derusting polishing machine, the rubber of different size
Gloves, mask；
S2, slab melting：Preparation → shove charge inspection → tundish and copper roller inspection → pass fire door inspection → parameter setting → leakage
Gas inspection → baker → melting → refining → thermometric → casting → cooling；
S3, Zhi Fen workshop section：Zhi Fen workshop sections are responsible for the product after melting fine powder is made, and main process has broken hydrogen, coarse powder stirring, gas
Stream mill, fine powder stirring；
S4, hydrogen are broken：System automatically opens air bleeding valve, is closed when being vented to atmospheric pressure, and three argon gas import valve and successively open.Pressure
When reaching displacement pressure, one of argon gas imports valve and closes, other two are normally opened, and air bleeding valve automatically opens exhaust, so
Setting time is arrived repeatedly.Air bleeding valve is opened, and atmospheric pressure is vented to, and displacement is completed；
S5, coarse powder stirring：Agitator tank shut-off valve is opened, agitator tank exhaust canister is opened, observes pressure gauge, is wanted until meeting operation card
It asks.It is interrupted either on or off exhaust canister, observes pressure gauge, reach and close air bleeding valve after specified pressure, tonifying Qi when insufficient pressure reaches
Shut-off valve is closed after pressure；
S6, molding die installation and dismounting：Preparation → die-filling → press prepares → installs push-down head → installation is framed → and installs
Pressure head → verticality inspection → demoulding, moulding press magnetic-field measurement and adjustment：Calibration → magnetic-field measurement with adjust → is cleared out a gathering place, and is claimed
Powder：Preparation → feeding → feeding → blanking → title powder → replacement barrel → before powder is claimed to clear up and clear out a gathering place；
S7, press operation：Under cylinder class upper cylinder half → pause → orientation → compacting → pressurize → demagnetization → upper cylinder half on → lower cylinder on；Side
Under block class upper cylinder half → push down mold → side cylinder move back into → orientation → compacting → pressurize → demagnetization → side cylinder → upper cylinder half on；
S8, stripping rusting knot：Glove box charge valve, auxiliary material feeding box charge valve are opened, nitrogen is filled with；Oxygen analyser is observed, when oxygen contains
Amount is down to ＜ 0.05%, can cut bag, cuts bag → stripping packaging bag → stripping inner membrance → pendulum basin, and behaviour's vehicle will be sintered basin and take out, puts in stove
It sets on circulation vehicle.
In summary：A kind of preparation method of magnetic material provided by the invention has following excellent compared with the prior art
Point：On the one hand it should improve magnet generation technique, strive the performance of product raising higher, it is more stable；On the other hand it also to cause
For power in the application market of developing bigger, this just not only needs the product that manufacturing enterprise provides, and also provides corresponding technology branch
It holds, increases the competitiveness of enterprise itself, preferably to apply enterprises service for sintered Nd-Fe-B permanent magnetic material, to promote neodymium
The sustainable development of iron boron and related industry.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (3)
1. a kind of preparation method of magnetic material, it is characterised in that：Include the following steps：
S1, dispensing：Common metal has following several：Neodymium metal, praseodymium neodymium, special boron, smart boron, copper, aluminium, gallium, terbium, cobalt, iron, dysprosium
Iron, ferro-niobium；
Instrument, tool, auxiliary material etc.:The electronic scale of different size, bar cropper, derusting polishing machine, rubber gloves,
Mask；
S2, slab melting：Preparation → shove charge inspection → tundish and copper roller inspection → pass fire door inspection → parameter setting → leakage
Gas inspection → baker → melting → refining → thermometric → casting → cooling；
S3, Zhi Fen workshop section：Zhi Fen workshop sections are responsible for the product after melting fine powder is made, and main process has broken hydrogen, coarse powder stirring, gas
Stream mill, fine powder stirring；
S4, hydrogen are broken：System automatically opens air bleeding valve, is closed when being vented to atmospheric pressure, and three argon gas import valve and successively open；
When pressure reaches displacement pressure, one of argon gas imports valve and closes, other two are normally opened, and air bleeding valve automatically opens row
Gas arrives setting time repeatedly；
Air bleeding valve is opened, and atmospheric pressure is vented to, and displacement is completed；
S5, coarse powder stirring：Agitator tank shut-off valve is opened, agitator tank exhaust canister is opened, observes pressure gauge, is wanted until meeting operation card
It asks；It is interrupted either on or off exhaust canister, observes pressure gauge, reach and close air bleeding valve after specified pressure, tonifying Qi when insufficient pressure reaches
Shut-off valve is closed after pressure；
S6, molding die installation and dismounting：Preparation → die-filling → press prepares → installs push-down head → installation is framed → and installs
Pressure head → verticality inspection → demoulding, moulding press magnetic-field measurement and adjustment：Calibration → magnetic-field measurement with adjust → is cleared out a gathering place, and is claimed
Powder：Preparation → feeding → feeding → blanking → title powder → replacement barrel → before powder is claimed to clear up and clear out a gathering place；
S7, press operation：Under cylinder class upper cylinder half → pause → orientation → compacting → pressurize → demagnetization → upper cylinder half on → lower cylinder on；Side
Under block class upper cylinder half → push down mold → side cylinder move back into → orientation → compacting → pressurize → demagnetization → side cylinder → upper cylinder half on；
S8, stripping rusting knot：Glove box charge valve, auxiliary material feeding box charge valve are opened, nitrogen is filled with；Oxygen analyser is observed, when oxygen contains
Amount is down to ＜ 0.05%, can cut bag, cuts bag → stripping packaging bag → stripping inner membrance → pendulum basin, and behaviour's vehicle will be sintered basin and take out, puts in stove
It sets on circulation vehicle.
2. a kind of preparation method of magnetic material according to claim 1, it is characterised in that：Low trade mark production stream
Journey：Dispensing → ingot casting → broken → in broken → coarse powder stirring → airflow milling → fine powder stirring.
3. a kind of preparation method of magnetic material according to claim 1, it is characterised in that：High trade mark production stream
Journey：Dispensing → slab → hydrogen is broken → coarse powder stirring → airflow milling → fine powder stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810205234.8A CN108461271A (en) | 2018-03-13 | 2018-03-13 | A kind of preparation method of magnetic material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810205234.8A CN108461271A (en) | 2018-03-13 | 2018-03-13 | A kind of preparation method of magnetic material |
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| CN108461271A true CN108461271A (en) | 2018-08-28 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6233402A (en) * | 1985-08-07 | 1987-02-13 | Tohoku Metal Ind Ltd | Manufacture of rare-earth magnet |
| CN103077795A (en) * | 2013-01-11 | 2013-05-01 | 宁波合盛磁业有限公司 | Low-weightlessness N50-type neodymium-iron-boron (Nd-Fe-B) magnet |
| CN107475631A (en) * | 2017-05-24 | 2017-12-15 | 安徽省瀚海新材料股份有限公司 | A kind of sintered NdFeB pressed compact processing method |
| CN107492429A (en) * | 2017-08-09 | 2017-12-19 | 江西金力永磁科技股份有限公司 | A kind of high temperature resistant neodymium iron boron magnetic body and preparation method thereof |
-
2018
- 2018-03-13 CN CN201810205234.8A patent/CN108461271A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6233402A (en) * | 1985-08-07 | 1987-02-13 | Tohoku Metal Ind Ltd | Manufacture of rare-earth magnet |
| CN103077795A (en) * | 2013-01-11 | 2013-05-01 | 宁波合盛磁业有限公司 | Low-weightlessness N50-type neodymium-iron-boron (Nd-Fe-B) magnet |
| CN107475631A (en) * | 2017-05-24 | 2017-12-15 | 安徽省瀚海新材料股份有限公司 | A kind of sintered NdFeB pressed compact processing method |
| CN107492429A (en) * | 2017-08-09 | 2017-12-19 | 江西金力永磁科技股份有限公司 | A kind of high temperature resistant neodymium iron boron magnetic body and preparation method thereof |
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Application publication date: 20180828 |