CN108666124A - A kind of preliminary filling magnetic system producing sintered Nd-Fe-B rare earth permanent magnet product - Google Patents
A kind of preliminary filling magnetic system producing sintered Nd-Fe-B rare earth permanent magnet product Download PDFInfo
- Publication number
- CN108666124A CN108666124A CN201810401689.7A CN201810401689A CN108666124A CN 108666124 A CN108666124 A CN 108666124A CN 201810401689 A CN201810401689 A CN 201810401689A CN 108666124 A CN108666124 A CN 108666124A
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- CN
- China
- Prior art keywords
- material chamber
- magnetizing
- preliminary filling
- chamber
- powder
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- 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.)
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/003—Apparatus, e.g. furnaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- 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
Abstract
The present invention provides a kind of preliminary filling magnetic systems producing sintered Nd Fe B rare earth permanent magnet products, the preliminary filling magnetic system includes a pre-magnetizing material chamber, the pan feeding valve that control powder enters is equipped with above pre-magnetizing material chamber, the discharge valve that control powder is gone out is equipped with below pre-magnetizing material chamber, the horizontal side of pre-magnetizing material chamber is equipped with the magnetizing coil that magnetic field can be manufactured to pre-magnetizing material chamber, the preliminary filling magnetic system further includes the briquetting machine for carrying out being orientated compression moulding to powder, and powder is transported to the charging chamber of briquetting machine from pre-magnetizing material chamber.The configuration of the present invention is simple, the process efficiency for being orientated compacting are high.
Description
Technical field
The present invention relates to a kind of preliminary filling magnetic systems producing sintered Nd-Fe-B rare earth permanent magnet product
Background technology
Sintered Nd-Fe-B rare earth permanent-magnetic material is the strongest permanent-magnet material of magnetic property used now, is widely used in
The fields such as computer, Magnetic resonance imaging, small and special electric machine.In invention till now more than 20 years, production technology and performance refer to
Mark has obtained quick development.
Its production process is that the Nd-Fe-B alloys after melting are crushed, and it is the thin of 2~5um to wear into average particle size
Powder in uniform magnetic field be orientated simultaneously compression moulding, is then carried out at a temperature of 1000~1200 DEG C with vacuum sintering furnace
Liquid-phase sintering makes its dense structure, forms alloy product.
Compression moulding is the critical process of sintered Nd-Fe-B rare earth permanent-magnetic material production.During powder pressing, powder
Expect that the degree of orientation in magnetic field has been largely fixed the final performance of product.
Invention content
It is an object of the invention in order to solve production sintered Nd-Fe-B rare earth permanent magnet product preliminary filling magnetic system structure
Complicated, inefficient problem creatively provides a kind of preliminary filling magnetic system producing sintered Nd-Fe-B rare earth permanent magnet product.
To achieve the goals above, the present invention provides a kind of pre-magnetizings producing sintered Nd-Fe-B rare earth permanent magnet product
System, the preliminary filling magnetic system include a pre-magnetizing material chamber, and the pan feeding valve that control powder enters is equipped with above pre-magnetizing material chamber
Door, pre-magnetizing material chamber lower section are equipped with the discharge valve that control powder is gone out, and the horizontal side of pre-magnetizing material chamber, which is equipped with, can give preliminary filling
Magnetic material chamber manufactures the magnetizing coil in magnetic field, and the preliminary filling magnetic system further includes the press for carrying out being orientated compression moulding to powder
Structure, and powder is transported to the charging chamber of briquetting machine from pre-magnetizing material chamber.
To further improvement of the present invention, pipeline connects between the charging chamber and briquetting machine.
It is described that logistics trolley is equipped between charging chamber and briquetting machine to further improvement of the present invention.
To further improvement of the present invention, the pre-magnetizing material chamber is made of ceramic materials.
It can be seen that since the present invention provides a kind of preliminary filling magnetic systems producing sintered Nd-Fe-B rare earth permanent magnet product
System, the preliminary filling magnetic system include a pre-magnetizing material chamber, and the pan feeding valve that control powder enters is equipped with above pre-magnetizing material chamber,
The discharge valve that control powder is gone out is equipped with below pre-magnetizing material chamber, the horizontal side of pre-magnetizing material chamber, which is equipped with, can give pre-magnetizing
Expect that the magnetizing coil in chamber manufacture magnetic field, the preliminary filling magnetic system further include the press for carrying out being orientated compression moulding to powder
Structure, and powder is transported to the charging chamber of briquetting machine from pre-magnetizing material chamber.The configuration of the present invention is simple is orientated the work of compacting
Sequence ultrahigh in efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of the preliminary filling magnetic system of the present invention；
The reference numerals are as follows：
Pre-magnetizing material chamber 1, pan feeding valve 2, discharge valve 3, magnetizing coil 5, briquetting machine 6, charging chamber 7, pipeline 71,
Trolley 72
Specific implementation mode
It is attached in conjunction with appended preferred embodiment in order to further appreciate that structure, feature and the other purposes of the present invention
With attached drawing, detailed description are as follows, this attached drawing embodiment described is only used to illustrate the technical scheme of the present invention, and does not limit any
Form, size or ratio.
As shown in figure, a kind of preliminary filling magnetic system producing sintered Nd-Fe-B rare earth permanent magnet product provided by the invention,
The preliminary filling magnetic system includes a pre-magnetizing material chamber 1, and 1 top of pre-magnetizing material chamber is equipped with the pan feeding valve 2 that control powder enters,
1 lower section of pre-magnetizing material chamber is equipped with the discharge valve 3 that control powder is gone out, and the horizontal side of pre-magnetizing material chamber 1, which is equipped with, can give preliminary filling
Magnetic material chamber 1 manufactures the magnetizing coil 5 in magnetic field, and the preliminary filling magnetic system further includes the compacting for carrying out being orientated compression moulding to powder
Mechanism 6, and powder is transported to the charging chamber 7 of briquetting machine 6 from pre-magnetizing material chamber 1.
Between the charging chamber 7 and briquetting machine 6 between the connection of pipeline 71 or the charging chamber 7 and briquetting machine 6
Equipped with logistics trolley 72.(preferably 1 bottom of pre-magnetizing material chamber) is provided with helium delivery device, helium energy mistake in pre-magnetizing material chamber 1
It prevents powder agglomerating in pre-magnetizing material chamber 1, is conducive to the effect that magnetizes.
Process：Powder is completed after weighing, and is poured into expects pipe, and valve is closed, and opens valve, allows powder into pan feeding chamber
It is interior, it is then shut off valve, magnetizing coil is started to work, and is carried out pre-magnetizing operation, is then opened valve, will complete pre-magnetizing
Powder pours into charging chamber, and powder, which is transported to briquetting machine, by charging chamber carries out orientation compression moulding.
Utilize product made from this magnetic charging system, related test parameters such as following table：
Experiment shows by means of the invention it is possible to improve the degree of orientation of sintered Nd-Fe-B magnet product, and then in smaller shadow
Under the premise of ringing coercivity (Hcj), its remanent magnetism (Br) and maximum magnetic energy product ((BH) max) are improved.
It is to be understood that foregoing invention content and specific implementation mode are intended to prove technical solution provided by the present invention
Practical application, should not be construed as limiting the scope of the present invention.Spirit and original of the those skilled in the art in the present invention
It, can not various modifications may be made, equivalent replacement or improvement in reason.Protection scope of the present invention is subject to the appended claims.
Claims (4)
1. a kind of preliminary filling magnetic system producing sintered Nd-Fe-B rare earth permanent magnet product, the preliminary filling magnetic system includes a pre-magnetizing
Expect chamber, which is characterized in that be equipped with the pan feeding valve that control powder enters above pre-magnetizing material chamber, control is equipped with below pre-magnetizing material chamber
The discharge valve that powder processed is gone out, the horizontal side of pre-magnetizing material chamber are equipped with the line that magnetizes that magnetic field can be manufactured to pre-magnetizing material chamber
Circle, the preliminary filling magnetic system further include the briquetting machine for carrying out being orientated compression moulding to powder, and by powder from pre-magnetizing material
Chamber is transported to the charging chamber of briquetting machine.
2. Nd-Fe-B permanent magnet formula as described in claim 1, which is characterized in that managed between the charging chamber and briquetting machine
Road connects.
3. Nd-Fe-B permanent magnet formula as described in claim 1, which is characterized in that the charging chamber and briquetting machine it
Between be equipped with logistics trolley.
4. Nd-Fe-B permanent magnet formula as described in claim 1, which is characterized in that the pre-magnetizing material chamber is by ceramic material system
At.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401689.7A CN108666124A (en) | 2018-04-28 | 2018-04-28 | A kind of preliminary filling magnetic system producing sintered Nd-Fe-B rare earth permanent magnet product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810401689.7A CN108666124A (en) | 2018-04-28 | 2018-04-28 | A kind of preliminary filling magnetic system producing sintered Nd-Fe-B rare earth permanent magnet product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108666124A true CN108666124A (en) | 2018-10-16 |
Family
ID=63780447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810401689.7A Pending CN108666124A (en) | 2018-04-28 | 2018-04-28 | A kind of preliminary filling magnetic system producing sintered Nd-Fe-B rare earth permanent magnet product |
Country Status (1)
| Country | Link |
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| CN (1) | CN108666124A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241247A (en) * | 2021-05-10 | 2021-08-10 | 东莞市众旺永磁科技有限公司 | Manufacturing process of hollow magnetic product |
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|---|---|---|---|---|
| CN201707998U (en) * | 2010-05-26 | 2011-01-12 | 成都航磁科技有限公司 | Pulse magnetic field device for pressing permanent magnetic product |
| CN103854843A (en) * | 2012-12-06 | 2014-06-11 | 宁波科宁达工业有限公司 | Pre-magnetizing equipment, pressing device and method for producing sintering permanent magnet |
| CN204720274U (en) * | 2015-06-08 | 2015-10-21 | 安徽省瀚海新材料有限公司 | A kind of device increasing pad between magnet |
| CN107152844A (en) * | 2017-07-04 | 2017-09-12 | 江西升华新材料有限公司 | Drying machine and material handling system |
| CN107195905A (en) * | 2017-04-27 | 2017-09-22 | 武汉艾特米克超能新材料科技有限公司 | A kind of preparation method and application of cladded type fire retardant |
| JP2017183317A (en) * | 2016-03-28 | 2017-10-05 | Tdk株式会社 | R-t-b-based sintered magnet |
| CN206577867U (en) * | 2016-12-31 | 2017-10-24 | 天津龙华诚信粉体技术有限公司 | A kind of powder process units |
| CN206891063U (en) * | 2017-07-04 | 2018-01-16 | 江西升华新材料有限公司 | Drying machine and material handling system |
-
2018
- 2018-04-28 CN CN201810401689.7A patent/CN108666124A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201707998U (en) * | 2010-05-26 | 2011-01-12 | 成都航磁科技有限公司 | Pulse magnetic field device for pressing permanent magnetic product |
| CN103854843A (en) * | 2012-12-06 | 2014-06-11 | 宁波科宁达工业有限公司 | Pre-magnetizing equipment, pressing device and method for producing sintering permanent magnet |
| CN204720274U (en) * | 2015-06-08 | 2015-10-21 | 安徽省瀚海新材料有限公司 | A kind of device increasing pad between magnet |
| JP2017183317A (en) * | 2016-03-28 | 2017-10-05 | Tdk株式会社 | R-t-b-based sintered magnet |
| CN206577867U (en) * | 2016-12-31 | 2017-10-24 | 天津龙华诚信粉体技术有限公司 | A kind of powder process units |
| CN107195905A (en) * | 2017-04-27 | 2017-09-22 | 武汉艾特米克超能新材料科技有限公司 | A kind of preparation method and application of cladded type fire retardant |
| CN107152844A (en) * | 2017-07-04 | 2017-09-12 | 江西升华新材料有限公司 | Drying machine and material handling system |
| CN206891063U (en) * | 2017-07-04 | 2018-01-16 | 江西升华新材料有限公司 | Drying machine and material handling system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113241247A (en) * | 2021-05-10 | 2021-08-10 | 东莞市众旺永磁科技有限公司 | Manufacturing process of hollow magnetic product |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181016 |
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