CN110090952A - A kind of the dress firing method and device of rare-earth Nd-Fe-B magnet - Google Patents
A kind of the dress firing method and device of rare-earth Nd-Fe-B magnet Download PDFInfo
- Publication number
- CN110090952A CN110090952A CN201810080703.8A CN201810080703A CN110090952A CN 110090952 A CN110090952 A CN 110090952A CN 201810080703 A CN201810080703 A CN 201810080703A CN 110090952 A CN110090952 A CN 110090952A
- Authority
- CN
- China
- Prior art keywords
- graphite
- semicircle
- rare
- earth
- charging
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
- B22F3/10—Sintering only
-
- 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
- B22F8/00—Manufacture of articles from scrap or waste metal particles
-
- 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
-
- 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
- B22F3/10—Sintering only
- B22F2003/1042—Sintering only with support for articles to be sintered
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Hard Magnetic Materials (AREA)
- Powder Metallurgy (AREA)
Abstract
It is filled the invention discloses a kind of rare-earth Nd-Fe-B magnet and burns device, including semicircle graphite body, multiple semicircle accommodating cavities are offered on the vertical plane of the semicircle graphite body, it is placed with a round charging graphite in each semicircle accommodating cavity, a rectangle charging graphite is placed in the round charging graphite；The invention also discloses a kind of dress firing methods of rare-earth Nd-Fe-B magnet, comprising the following steps: impregnates, drying, charging, is compacted, being sintered and is cooling；The present invention can carry out unified sintering according to the shape of the rare-earth Nd-Fe-B magnet of required sintering, it avoids charging using multiple graphites and be sintered, it avoids graphite and graphite directly touches the situation that can closely make very much every box temperature difference opposite sex big, which can make properties of product consistency after sintering preferable；And dress firing method of the invention is more reasonable, it is possible to reduce due to cracking and arrisdefect ratio caused by sintering, so that sintered final product quality is higher, has good promotion effect.
Description
Technical field
The present invention relates to rare-earth Nd-Fe-B magnet technology field, the dress firing method of specially a kind of rare-earth Nd-Fe-B magnet and
Device.
Background technique
In rare-earth Nd-Fe-B permanent magnetism industry, the vacuum-sintering of neodymium iron boron magnetic body is as ring more important in entire technique
Section directly decides consistency of performance, the yield rate, utilization rate of product.Most domestic neodymium iron boron producer has begun and makes at present
With graphite, but it is traditionally used for the graphite that rare-earth Nd-Fe-B magnet dress is burnt, shape and specification are more single, are difficult root
Unified sintering is carried out according to the shape of the rare-earth Nd-Fe-B magnet of required sintering, if burnt simultaneously using the charging of multiple graphites
Knot, graphite and graphite can be made, which directly to touch, closely will lead to very much every box temperature difference opposite sex greatly, so that product after sintering
Consistency of performance is poor.
Therefore, dress firing method and the device for inventing a kind of rare-earth Nd-Fe-B magnet are necessary.
Summary of the invention
The purpose of the present invention is to provide a kind of dress firing method of rare-earth Nd-Fe-B magnet and devices, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme: a kind of rare-earth Nd-Fe-B magnet dress burns device, including
Semicircle graphite body offers multiple semicircle accommodating cavities on the vertical plane of the semicircle graphite body, puts in each semicircle accommodating cavity
It is equipped with a round charging graphite, is placed with a rectangle charging graphite in the round charging graphite, described half
The side of circle accommodating cavity is hinged with semicircle graphite cover board, and one end of the semicircle graphite cover board is respectively provided with that there are two fixture block, institutes
The other side for stating semicircle accommodating cavity is opened up there are two card slot corresponding with fixture block, is offered on the semicircle graphite cover board more
Group small ventilating holes.
Preferably, the inside height of the semicircle accommodating cavity is equal with the inside height of semicircle graphite cover board.
Preferably, the round charging graphite or rectangle charging graphite are provided with the useless powder of rare-earth Nd-Fe-B.
Preferably, the small ventilating holes on the semicircle graphite cover board are provided with two groups, and every group of number in the horizontal plane
Amount is three.
A kind of dress firing method of rare-earth Nd-Fe-B magnet, comprising the following steps:
Step 1: according to specification needed for being sintered, the semicircle graphite body, round charging graphite and rectangle of certain specification are chosen
Charge graphite, opens semicircle graphite cover board, and circle charging graphite and rectangle charging graphite are taken from semicircle accommodating cavity
Out, then three is placed into calcium hydroxide solution respectively and is impregnated 3-5 hours；
Step 2: by semicircle graphite body, round charging graphite, semicircle graphite cover board and the rectangle charging graphite after immersion
Box takes out, and then launches and carries out baking dehumidifying in baking oven, sets oven temperature as 75-85 DEG C, baking time is that 4-6 is small
When；
Step 3: preparing the useless powder of rare-earth Nd-Fe-B, by semicircle graphite body, round the charging graphite, half roundstone after drying
Inky cap plate and rectangle charging graphite take out, and the shape for the rare-earth Nd-Fe-B magnet being sintered as needed gives up rare-earth Nd-Fe-B
Powder be poured into round charging graphite or rectangle charging graphite (the rare-earth Nd-Fe-B magnet if necessary to sintering is rectangle,
The useless powder of rare-earth Nd-Fe-B is then poured into rectangle charging graphite, and rectangle charging graphite is placed into round charging graphite
In；Rare-earth Nd-Fe-B magnet if necessary to sintering is circle, then takes the rectangle charging graphite in round charging graphite
Out, and directly the useless powder of rare-earth Nd-Fe-B is poured into circle charging graphite), it is compacted after pouring into the useless powder of rare-earth Nd-Fe-B；
Step 4: smearing fire clay in the outside of round charging graphite and rectangle charging graphite, then will be round
Charging graphite is placed into corresponding semicircle accommodating cavity, each semicircle graphite cover board is closed, so that fixture block is fastened in card slot
It realizes and fixes；
Step 5: the semicircle graphite body after semicircle graphite cover board will be covered and launched into sintering furnace, semicircle graphite body is being burnt
It needs just putting in freezing of a furnace, sets sintering temperature as 1100-1200 DEG C, the vacuum degree in sintering furnace is 5 × 10-2Pa, sintering time
For 5-8h；
Step 6: sintered semicircle graphite body is taken out and is cooled to normal temperature state, each semicircle graphite cover board is beaten
It opens, takes out round charging graphite, molding rectangle or round rare-earth Nd-Fe-B magnet can be obtained.
Compared with prior art, the beneficial effects of the present invention are: structure of the invention design is reasonable, a kind of rare earth neodymium being related to
Iron boron magnet dress burns device, unified sintering can be carried out according to the shape of the rare-earth Nd-Fe-B magnet of required sintering, disposably
Sinterable to form multiple and variform rare-earth Nd-Fe-B magnet, avoiding being charged using multiple graphites is sintered, and avoids stone
Print cartridge and graphite, which directly touch, can closely make very much the anisotropic big situation of every box temperature difference, which can make product after sintering
Consistency of performance is preferable；And a kind of dress firing method of rare-earth Nd-Fe-B magnet of the present invention is more reasonable, can subtract
Less due to cracking and arrisdefect ratio caused by sintering, so that sintered final product quality is higher, there is good promotion effect.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the round charging graphite of the present invention and rectangle charging graphite schematic diagram.
In figure: semicircle graphite body 1, semicircle accommodating cavity 2, round charging graphite 3, semicircle graphite cover board 4, fixture block 5, card slot
6, rectangle charging graphite 7, small ventilating holes 8.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1-2: a kind of rare-earth Nd-Fe-B magnet dress burning device, including half
Justify graphite body 1, offers multiple semicircle accommodating cavities 2 on the vertical plane of semicircle graphite body 1, placed in each semicircle accommodating cavity 2
There is a round charging graphite 3, a rectangle charging graphite 7, semicircle accommodating cavity are placed in circle charging graphite 3
2 side is hinged with semicircle graphite cover board 4, and one end of semicircle graphite cover board 4 is respectively provided with that there are two fixture block 5, semicircle accommodating cavities 2
The other side open up there are two card slot 6 corresponding with fixture block 5, offer multiple groups small ventilating holes 8 on semicircle graphite cover board 4.
Further, the inside height of semicircle accommodating cavity 2 is equal with the inside height of semicircle graphite cover board 4.
Further, round charging graphite 3 or rectangle charging graphite 7 are provided with the useless powder of rare-earth Nd-Fe-B.
Further, the small ventilating holes 8 on semicircle graphite cover board 4 are provided with two groups, and every group of number in the horizontal plane
Amount is three.
Embodiment one:
A kind of dress firing method of rare-earth Nd-Fe-B magnet, comprising the following steps:
Step 1: according to specification needed for being sintered, the semicircle graphite body 1, round charging graphite 3 and square of certain specification are chosen
Shape dress work stone print cartridge 7 opens semicircle graphite cover board 4, and circle charging graphite 3 and rectangle charging graphite 7 are accommodated from semicircle
It is taken out in chamber 2, then three is placed into calcium hydroxide solution respectively and impregnates 3 hours；
Step 2: semicircle graphite body 1, round charging graphite 3, semicircle graphite cover board 4 and the rectangle after immersion are charged
Graphite 7 takes out, and then launches and carries out baking dehumidifying in baking oven, sets oven temperature as 75 DEG C, baking time is 4 small
When；
Step 3: preparing the useless powder of rare-earth Nd-Fe-B, by semicircle graphite body 1, round the charging graphite 3, semicircle after drying
Graphite cover board 4 and rectangle charging graphite 7 take out, the shape for the rare-earth Nd-Fe-B magnet being sintered as needed, by rare earth neodymium iron
The boron powder that gives up is poured into round charging graphite 3 or rectangle charging graphite 7 that (the rare-earth Nd-Fe-B magnet if necessary to sintering is
Rectangle then pours into the useless powder of rare-earth Nd-Fe-B into rectangle charging graphite 7, and rectangle charging graphite 7 is placed into round dress
In work stone print cartridge 3；Rare-earth Nd-Fe-B magnet if necessary to sintering is circle, then fills the rectangle in round charging graphite 3
Work stone print cartridge 7 takes out, and the useless powder of rare-earth Nd-Fe-B is directly poured into circle charging graphite 3), pour into the useless powder of rare-earth Nd-Fe-B
After be compacted；
Step 4: fire clay is smeared in the outside of round charging graphite 3 and rectangle charging graphite 7, then will be justified
Shape dress work stone print cartridge 3 is placed into corresponding semicircle accommodating cavity 2, each semicircle graphite cover board 4 is closed, so that fixture block 5 is fastened on
It realizes and fixes in card slot 6；
Step 5: the semicircle graphite body 1 after semicircle graphite cover board 4 will be covered and launched into sintering furnace, semicircle graphite body 1 exists
It needs just putting in sintering furnace, sets sintering temperature as 1100 DEG C, the vacuum degree in sintering furnace is 5 × 10-2Pa, and sintering time is
5h；
Step 6: sintered semicircle graphite body 1 is taken out and is cooled to normal temperature state, by each semicircle graphite cover board 4
It opens, takes out round charging graphite 3, molding rectangle or round rare-earth Nd-Fe-B magnet can be obtained.
Embodiment two:
A kind of dress firing method of rare-earth Nd-Fe-B magnet, comprising the following steps:
Step 1: according to specification needed for being sintered, the semicircle graphite body 1, round charging graphite 3 and square of certain specification are chosen
Shape dress work stone print cartridge 7 opens semicircle graphite cover board 4, and circle charging graphite 3 and rectangle charging graphite 7 are accommodated from semicircle
It is taken out in chamber 2, then three is placed into calcium hydroxide solution respectively and impregnates 4 hours；
Step 2: semicircle graphite body 1, round charging graphite 3, semicircle graphite cover board 4 and the rectangle after immersion are charged
Graphite 7 takes out, and then launches and carries out baking dehumidifying in baking oven, sets oven temperature as 80 DEG C, baking time is 5 small
When；
Step 3: preparing the useless powder of rare-earth Nd-Fe-B, by semicircle graphite body 1, round the charging graphite 3, semicircle after drying
Graphite cover board 4 and rectangle charging graphite 7 take out, the shape for the rare-earth Nd-Fe-B magnet being sintered as needed, by rare earth neodymium iron
The boron powder that gives up is poured into round charging graphite 3 or rectangle charging graphite 7 that (the rare-earth Nd-Fe-B magnet if necessary to sintering is
Rectangle then pours into the useless powder of rare-earth Nd-Fe-B into rectangle charging graphite 7, and rectangle charging graphite 7 is placed into round dress
In work stone print cartridge 3；Rare-earth Nd-Fe-B magnet if necessary to sintering is circle, then fills the rectangle in round charging graphite 3
Work stone print cartridge 7 takes out, and the useless powder of rare-earth Nd-Fe-B is directly poured into circle charging graphite 3), pour into the useless powder of rare-earth Nd-Fe-B
After be compacted；
Step 4: fire clay is smeared in the outside of round charging graphite 3 and rectangle charging graphite 7, then will be justified
Shape dress work stone print cartridge 3 is placed into corresponding semicircle accommodating cavity 2, each semicircle graphite cover board 4 is closed, so that fixture block 5 is fastened on
It realizes and fixes in card slot 6；
Step 5: the semicircle graphite body 1 after semicircle graphite cover board 4 will be covered and launched into sintering furnace, semicircle graphite body 1 exists
It needs just putting in sintering furnace, sets sintering temperature as 1150 DEG C, the vacuum degree in sintering furnace is 5 × 10-2Pa, and sintering time is
7h；
Step 6: sintered semicircle graphite body 1 is taken out and is cooled to normal temperature state, by each semicircle graphite cover board 4
It opens, takes out round charging graphite 3, molding rectangle or round rare-earth Nd-Fe-B magnet can be obtained.
Embodiment three:
A kind of dress firing method of rare-earth Nd-Fe-B magnet, comprising the following steps:
Step 1: according to specification needed for being sintered, the semicircle graphite body 1, round charging graphite 3 and square of certain specification are chosen
Shape dress work stone print cartridge 7 opens semicircle graphite cover board 4, and circle charging graphite 3 and rectangle charging graphite 7 are accommodated from semicircle
It is taken out in chamber 2, then three is placed into calcium hydroxide solution respectively and impregnates 5 hours；
Step 2: semicircle graphite body 1, round charging graphite 3, semicircle graphite cover board 4 and the rectangle after immersion are charged
Graphite 7 takes out, and then launches and carries out baking dehumidifying in baking oven, sets oven temperature as 85 DEG C, baking time is 6 small
When；
Step 3: preparing the useless powder of rare-earth Nd-Fe-B, by semicircle graphite body 1, round the charging graphite 3, semicircle after drying
Graphite cover board 4 and rectangle charging graphite 7 take out, the shape for the rare-earth Nd-Fe-B magnet being sintered as needed, by rare earth neodymium iron
The boron powder that gives up is poured into round charging graphite 3 or rectangle charging graphite 7 that (the rare-earth Nd-Fe-B magnet if necessary to sintering is
Rectangle then pours into the useless powder of rare-earth Nd-Fe-B into rectangle charging graphite 7, and rectangle charging graphite 7 is placed into round dress
In work stone print cartridge 3；Rare-earth Nd-Fe-B magnet if necessary to sintering is circle, then fills the rectangle in round charging graphite 3
Work stone print cartridge 7 takes out, and the useless powder of rare-earth Nd-Fe-B is directly poured into circle charging graphite 3), pour into the useless powder of rare-earth Nd-Fe-B
After be compacted；
Step 4: fire clay is smeared in the outside of round charging graphite 3 and rectangle charging graphite 7, then will be justified
Shape dress work stone print cartridge 3 is placed into corresponding semicircle accommodating cavity 2, each semicircle graphite cover board 4 is closed, so that fixture block 5 is fastened on
It realizes and fixes in card slot 6；
Step 5: the semicircle graphite body 1 after semicircle graphite cover board 4 will be covered and launched into sintering furnace, semicircle graphite body 1 exists
It needs just putting in sintering furnace, sets sintering temperature as 1200 DEG C, the vacuum degree in sintering furnace is 5 × 10-2Pa, and sintering time is
8h；
Step 6: sintered semicircle graphite body 1 is taken out and is cooled to normal temperature state, by each semicircle graphite cover board 4
It opens, takes out round charging graphite 3, molding rectangle or round rare-earth Nd-Fe-B magnet can be obtained.
Rare-earth Nd-Fe-B magnet can be obtained by above three groups of embodiments, and structure of the invention design is rationally, is related to
A kind of rare-earth Nd-Fe-B magnet dress burn device, can be carried out according to the shape of the rare-earth Nd-Fe-B magnet of required sintering unification
Sintering, it is disposably sinterable to form multiple and variform rare-earth Nd-Fe-B magnet, it avoids charging using multiple graphites and burn
Knot, avoids graphite and graphite directly touches the situation that can closely make very much every box temperature difference opposite sex big, which can make
Properties of product consistency is preferable after must being sintered；And a kind of dress firing method of rare-earth Nd-Fe-B magnet of the present invention is more
Rationally, it is possible to reduce due to cracking and arrisdefect ratio caused by sintering, so that sintered final product quality is higher, have good
Promotion effect.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of rare-earth Nd-Fe-B magnet dress burns device, including semicircle graphite body (1), it is characterised in that: the semicircle graphite body
(1) multiple semicircle accommodating cavities (2) are offered on vertical plane, and a round charging is placed in each semicircle accommodating cavity (2)
Graphite (3), round charging graphite (3) is interior to be placed with rectangle charging graphite (7), the semicircle accommodating cavity
(2) side is hinged with semicircle graphite cover board (4), and one end of the semicircle graphite cover board (4) is respectively provided with that there are two fixture blocks
(5), the other side of the semicircle accommodating cavity (2) is opened up there are two card slot (6) corresponding with fixture block (5), the semicircle graphite
Multiple groups small ventilating holes (8) are offered on cover board (4).
2. a kind of rare-earth Nd-Fe-B magnet dress according to claim 1 burns device, it is characterised in that: the semicircle accommodating cavity
(2) inside height is equal with the inside height of semicircle graphite cover board (4).
3. the dress firing method and device of a kind of rare-earth Nd-Fe-B magnet according to claim 1, it is characterised in that: the circle
Shape dress work stone print cartridge (3) or rectangle charging graphite (7) are provided with the useless powder of rare-earth Nd-Fe-B.
4. the dress firing method and device of a kind of rare-earth Nd-Fe-B magnet according to claim 1, it is characterised in that: described half
Small ventilating holes (8) on roundstone inky cap plate (4) are provided with two groups in the horizontal plane, and every group of quantity is three.
5. a kind of dress firing method of the rare-earth Nd-Fe-B magnet as described in claim 1-4, which is characterized in that including following step
It is rapid:
Step 1: according to specification needed for being sintered, the semicircle graphite body, round charging graphite and rectangle charging of certain specification are chosen
Graphite opens semicircle graphite cover board, circle charging graphite and rectangle charging graphite is taken out from semicircle accommodating cavity, so
Three is placed into calcium hydroxide solution respectively afterwards and is impregnated 3-5 hours；
Step 2: semicircle graphite body, round charging graphite, semicircle graphite cover board and the rectangle charging graphite after immersion are taken
Out, it then launches and carries out baking dehumidifying in baking oven, set oven temperature as 75-85 DEG C, baking time is 4-6 hours；
Step 3: preparing the useless powder of rare-earth Nd-Fe-B, by semicircle graphite body, round the charging graphite, semicircle graphite cover after drying
Plate and rectangle charging graphite take out, and the shape for the rare-earth Nd-Fe-B magnet being sintered as needed falls the rare-earth Nd-Fe-B powder that gives up
Enter into round charging graphite or rectangle charging graphite (the rare-earth Nd-Fe-B magnet if necessary to sintering is rectangle, then to
The useless powder of rare-earth Nd-Fe-B is poured into rectangle charging graphite, and rectangle charging graphite is placed into round charging graphite；
Rare-earth Nd-Fe-B magnet if necessary to sintering is circle, then takes out the rectangle charging graphite in round charging graphite,
And the useless powder of rare-earth Nd-Fe-B is directly poured into circle charging graphite), it is compacted after pouring into the useless powder of rare-earth Nd-Fe-B；
Step 4: fire clay is smeared in the outside of round charging graphite and rectangle charging graphite, then circle charges
Graphite is placed into corresponding semicircle accommodating cavity, closes each semicircle graphite cover board, is realized so that fixture block is fastened in card slot
It is fixed；
Step 5: the semicircle graphite body after semicircle graphite cover board will be covered and launched into sintering furnace, semicircle graphite body is in sintering furnace
In need just to put, set sintering temperature as 1100-1200 DEG C, the vacuum degree in sintering furnace is 5 × 10-2Pa, sintering time 5-
8h；
Step 6: taking out and be cooled to normal temperature state for sintered semicircle graphite body, and each semicircle graphite cover board is opened, is taken
Molding rectangle or round rare-earth Nd-Fe-B magnet can be obtained in round charging graphite out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810080703.8A CN110090952A (en) | 2018-01-28 | 2018-01-28 | A kind of the dress firing method and device of rare-earth Nd-Fe-B magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810080703.8A CN110090952A (en) | 2018-01-28 | 2018-01-28 | A kind of the dress firing method and device of rare-earth Nd-Fe-B magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110090952A true CN110090952A (en) | 2019-08-06 |
Family
ID=67442533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810080703.8A Pending CN110090952A (en) | 2018-01-28 | 2018-01-28 | A kind of the dress firing method and device of rare-earth Nd-Fe-B magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110090952A (en) |
Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265947A (en) * | 1999-03-03 | 2000-09-13 | 住友特殊金属株式会社 | Sintering box for rareearth magnet sintering and method for making rareearth magnet sintered and processed by said box |
| CN201266541Y (en) * | 2008-07-29 | 2009-07-01 | 宁波科宁达工业有限公司 | Sintering box for permanent magnet product |
| CN201530851U (en) * | 2009-11-13 | 2010-07-21 | 宁波盛事达磁业有限公司 | Boat group for sintering Al-Ni-Co permanent magnetic alloy |
| CN202258777U (en) * | 2011-10-28 | 2012-05-30 | 沈阳中北通磁科技股份有限公司 | Charging box of neodymium iron boron magnet raw blank for vacuum sintering furnace |
| CN202763041U (en) * | 2012-10-20 | 2013-03-06 | 宁波合盛磁业有限公司 | Material box for neodymium-iron-boron magnet sintering |
| CN202845783U (en) * | 2012-11-09 | 2013-04-03 | 安徽大地熊新材料股份有限公司 | Neodymium iron boron magnet firing device |
| CN103366944A (en) * | 2013-07-17 | 2013-10-23 | 宁波韵升股份有限公司 | Method for improving performance of sintered neodymium-iron-boron magnet |
| CN203481039U (en) * | 2013-09-06 | 2014-03-12 | 宁波韵升股份有限公司 | Sintering box for preparing spliced and sintered neodymium-iron-boron permanent magnet blank |
| CN103646772A (en) * | 2013-11-21 | 2014-03-19 | 烟台正海磁性材料股份有限公司 | Preparing method of R-Fe-B sintered magnet |
| CN204700307U (en) * | 2015-06-18 | 2015-10-14 | 包头金山磁材有限公司 | A kind of continuous fritting furnace of permanent-magnet rare-earth NdFeB alloy |
| CN204975333U (en) * | 2015-06-29 | 2016-01-20 | 株洲硬质合金集团有限公司 | Combination boat suitable for dysmorphism product sintering |
| CN105321701A (en) * | 2015-07-01 | 2016-02-10 | 浙江东阳东磁稀土有限公司 | Sintering method and apparatus for rare earth neodymium-iron-boron magnet |
| CN105903957A (en) * | 2016-05-20 | 2016-08-31 | 成都德兴磁业有限公司 | Blank charging box for neodymium iron boron magnet |
| CN105903958A (en) * | 2016-05-20 | 2016-08-31 | 成都德兴磁业有限公司 | Material box for neodymium iron boron magnet |
| CN106001557A (en) * | 2016-07-28 | 2016-10-12 | 昆山安泰美科金属材料有限公司 | Metal powder injection forming sintering device |
| CN106128678A (en) * | 2016-08-17 | 2016-11-16 | 宁波永久磁业有限公司 | A kind of method preparing R T B rare-earth permanent magnet |
| EP3103571A1 (en) * | 2015-06-12 | 2016-12-14 | Rolls-Royce Deutschland Ltd & Co KG | Component construction, component for a gas turbine and method for producing a component of a gas turbine by metal powder injection moulding |
| CN205927110U (en) * | 2016-06-30 | 2017-02-08 | 中铝广西有色金源稀土有限公司 | Sintered nd -Fe -B open -type sintering magazine |
| FR3033509B1 (en) * | 2015-03-11 | 2019-08-23 | Safran Aircraft Engines | DELIANTING METHOD USING POSITIONING JIG |
-
2018
- 2018-01-28 CN CN201810080703.8A patent/CN110090952A/en active Pending
Patent Citations (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1265947A (en) * | 1999-03-03 | 2000-09-13 | 住友特殊金属株式会社 | Sintering box for rareearth magnet sintering and method for making rareearth magnet sintered and processed by said box |
| CN201266541Y (en) * | 2008-07-29 | 2009-07-01 | 宁波科宁达工业有限公司 | Sintering box for permanent magnet product |
| CN201530851U (en) * | 2009-11-13 | 2010-07-21 | 宁波盛事达磁业有限公司 | Boat group for sintering Al-Ni-Co permanent magnetic alloy |
| CN202258777U (en) * | 2011-10-28 | 2012-05-30 | 沈阳中北通磁科技股份有限公司 | Charging box of neodymium iron boron magnet raw blank for vacuum sintering furnace |
| CN202763041U (en) * | 2012-10-20 | 2013-03-06 | 宁波合盛磁业有限公司 | Material box for neodymium-iron-boron magnet sintering |
| CN202845783U (en) * | 2012-11-09 | 2013-04-03 | 安徽大地熊新材料股份有限公司 | Neodymium iron boron magnet firing device |
| CN103366944A (en) * | 2013-07-17 | 2013-10-23 | 宁波韵升股份有限公司 | Method for improving performance of sintered neodymium-iron-boron magnet |
| CN203481039U (en) * | 2013-09-06 | 2014-03-12 | 宁波韵升股份有限公司 | Sintering box for preparing spliced and sintered neodymium-iron-boron permanent magnet blank |
| CN103646772A (en) * | 2013-11-21 | 2014-03-19 | 烟台正海磁性材料股份有限公司 | Preparing method of R-Fe-B sintered magnet |
| FR3033509B1 (en) * | 2015-03-11 | 2019-08-23 | Safran Aircraft Engines | DELIANTING METHOD USING POSITIONING JIG |
| EP3103571A1 (en) * | 2015-06-12 | 2016-12-14 | Rolls-Royce Deutschland Ltd & Co KG | Component construction, component for a gas turbine and method for producing a component of a gas turbine by metal powder injection moulding |
| CN204700307U (en) * | 2015-06-18 | 2015-10-14 | 包头金山磁材有限公司 | A kind of continuous fritting furnace of permanent-magnet rare-earth NdFeB alloy |
| CN204975333U (en) * | 2015-06-29 | 2016-01-20 | 株洲硬质合金集团有限公司 | Combination boat suitable for dysmorphism product sintering |
| CN105321701A (en) * | 2015-07-01 | 2016-02-10 | 浙江东阳东磁稀土有限公司 | Sintering method and apparatus for rare earth neodymium-iron-boron magnet |
| CN105903957A (en) * | 2016-05-20 | 2016-08-31 | 成都德兴磁业有限公司 | Blank charging box for neodymium iron boron magnet |
| CN105903958A (en) * | 2016-05-20 | 2016-08-31 | 成都德兴磁业有限公司 | Material box for neodymium iron boron magnet |
| CN205927110U (en) * | 2016-06-30 | 2017-02-08 | 中铝广西有色金源稀土有限公司 | Sintered nd -Fe -B open -type sintering magazine |
| CN106001557A (en) * | 2016-07-28 | 2016-10-12 | 昆山安泰美科金属材料有限公司 | Metal powder injection forming sintering device |
| CN106128678A (en) * | 2016-08-17 | 2016-11-16 | 宁波永久磁业有限公司 | A kind of method preparing R T B rare-earth permanent magnet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105801108B (en) | A kind of preparation method of three-dimensional open-framework lithium matrix body tritium increment agent material | |
| CN107249726B (en) | Manufacturing equipment and preparation method of silicon-oxygen compound | |
| CN110090952A (en) | A kind of the dress firing method and device of rare-earth Nd-Fe-B magnet | |
| CN105321701A (en) | Sintering method and apparatus for rare earth neodymium-iron-boron magnet | |
| CN204700307U (en) | A kind of continuous fritting furnace of permanent-magnet rare-earth NdFeB alloy | |
| CN109719835A (en) | A kind of arcwall face refractory brick fast demoulding mold | |
| CN106478081A (en) | The method that vacuum carbothermal reduction strengthens vitreous silica high-temperature behavior | |
| CN202763041U (en) | Material box for neodymium-iron-boron magnet sintering | |
| CN102798292A (en) | Method for baking vacuum induction melting furnace | |
| CN213002513U (en) | Double-sided independent sand shooting system of full-automatic molding machine | |
| CN204668141U (en) | A kind of Sintered NdFeB magnet magazine | |
| CN207874504U (en) | A kind of large-scale refractory material prefabricated block forming die in coke oven coal filling hole | |
| CN203498265U (en) | Super-thick silicon nitride combined silicon carbide product | |
| CN203646429U (en) | Automatic feeding device applied to processing of needle-shaped green tea | |
| CN203837497U (en) | Bearing and burning jig for ceramic electronic elements | |
| CN113976828A (en) | Carbon-free precision casting method for evaporative shell of evaporative pattern by adopting high-temperature ceramic coating gasification | |
| CN218699955U (en) | Castable curing device | |
| CN205951007U (en) | Sodium -sulfur cell solid electrolyte ceramic pipe forming device | |
| CN107999702B (en) | Ceramic core sintering molding process | |
| CN206056261U (en) | A kind of dress crucible hydraulic press | |
| CN204760478U (en) | Sintering casket -like bowl | |
| CN219837943U (en) | Novel porous brick suppression device | |
| CN205223283U (en) | Of wriggling treater | |
| CN209703817U (en) | Low thermally conductive wear-resisting composite brick | |
| CN102607266A (en) | Ceramic crucible |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190806 |