CN202824653U - Rare earth forming mould - Google Patents
Rare earth forming mould Download PDFInfo
- Publication number
- CN202824653U CN202824653U CN 201220469750 CN201220469750U CN202824653U CN 202824653 U CN202824653 U CN 202824653U CN 201220469750 CN201220469750 CN 201220469750 CN 201220469750 U CN201220469750 U CN 201220469750U CN 202824653 U CN202824653 U CN 202824653U
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- CN
- China
- Prior art keywords
- hole
- rare earth
- push
- down head
- seaming chuck
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a rare earth forming mould which comprises a mould board, an upper pressure head and a lower pressure head, wherein the mold board is provided with at least one through hole, the section of the through hole is oval, the upper pressure head and the lower head are respectively provided with at least one end head, and the end face of the end head is oval and is matched with the through hole in size. When rare earth powder is filled inside the through hole, the lower pressure head is stretched into the through hole from the lower end of the through hole, and the upper pressure head is stretched into the through hole from the upper end of the through hole to enable the powder to be tightly pressed to obtain product green bodies. The rare earth forming mould has the advantages that orientation of the radial magnetized directions of magnetic product green bodies is not affected, and therefore accuracy of the radial magnetized directions of cylinder-shaped products is improved.
Description
Technical field
The utility model relates to a kind of manufacturing equipment of rare-earth products, especially relates to a kind of rare earth mould.
Background technology
Compressing and forming process is the common technology of producing magnetic product, and it is by putting into rare earth material on the green compact that the rare earth mould suppresses to obtain magnetic product.Existing rare earth mould for making cylindrical product generally comprises template, seaming chuck and push-down head, is provided with square through hole in the template, and it is half elliptic die cavity that the end of seaming chuck and push-down head is provided with at least one cross section.In the formed product operation, with the end of push-down head from the lower end of square through hole stretch into and the upper end of square through hole between form a container cavity, the powder of in container cavity, packing into, then seaming chuck is packed in the square through hole, compressing respectively seaming chuck and push-down head coincide the die cavity of its end, obtaining cross section is oval-shaped magnetic product green compact and the orientation of the magnetic product green compact being carried out the diametrical magnetization direction, and the magnetic product green sintering obtains cylindrical product after then will being orientated.But this rare earth mould is because seaming chuck and push-down head envelope the magnetic product green compact at warp-wise, the orientation of diametrical magnetization direction, thus the precision of the diametrical magnetization direction of cylindrical product is caused harmful effect, cause its precision not high.
Summary of the invention
Technical problem to be solved in the utility model provides and a kind ofly can not impact the rare earth mould that the precision of diametrical magnetization direction is higher to the orientation of the direction of magnetization radially.
The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of rare earth mould, comprise template, seaming chuck and push-down head, being provided with at least one cross section on the described template is oval-shaped through hole, be provided with at least one termination on described seaming chuck and the described push-down head, the end face of described termination is oval and its big or small and described through hole coupling, when in the described through hole rare earth powder being housed, described push-down head stretches into from the lower end of described through hole, and described seaming chuck stretches into from the upper end of described through hole the powder compression is obtained the product green compact.
The long diameter of the cross section of described through hole and the ratio of short diameter are 1.2 ~ 1.4.
The material of described seaming chuck and described push-down head is stainless steel or 70Mn.
Compared with prior art, the utility model has the advantage of by the seaming chuck that arranges and push-down head axially compressing, can the orientation of the diametrical magnetization direction of magnetic product green compact not impacted, thereby improved the precision of the diametrical magnetization direction of cylindrical product;
When the ratio of the long diameter of the cross section of through hole and short diameter is 1.2 ~ 1.4, can guarantee that the magnetic product green compact obtain the circularity of columniform product behind oversintering higher.
Description of drawings
Fig. 1 is the structural representation of template of the present utility model;
Fig. 2 is cutaway view of the present utility model.
The specific embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Embodiment one: as shown in the figure, a kind of rare earth mould, comprise template 1, seaming chuck 2 and push-down head 3, being provided with two cross sections on the template 1 is oval-shaped through hole 4, be provided with two terminations on seaming chuck 2 and the push-down head 3, the end face of termination is oval and its big or small and through hole coupling, when in the through hole 4 the rare earth powder being housed, push-down head 3 stretches into from the lower end of through hole 4, and seaming chuck 2 stretches into from the upper end of through hole 4 the powder compression is obtained the product green compact.
In the present embodiment, the long diameter of the cross section of through hole 4 and the ratio of short diameter are 1.2.
In the present embodiment, the material of seaming chuck 2 and push-down head 3 is stainless steel.
Embodiment two: as shown in the figure, a kind of rare earth mould, comprise template 1, seaming chuck 2 and push-down head 3, being provided with two cross sections on the template 1 is oval-shaped through hole 4, be provided with two terminations on seaming chuck 2 and the push-down head 3, the end face of termination is oval and its big or small and through hole coupling, when in the through hole 4 the rare earth powder being housed, push-down head 3 stretches into from the lower end of through hole 4, and seaming chuck 2 stretches into from the upper end of through hole 4 the powder compression is obtained the product green compact.
In the present embodiment, the long diameter of the cross section of through hole 4 and the ratio of short diameter are 1.4.
In the present embodiment, the material of seaming chuck 2 and push-down head 3 is 70Mn.
Claims (3)
1. rare earth mould, comprise template, seaming chuck and push-down head, it is characterized in that being provided with on the described template at least one cross section is oval-shaped through hole, be provided with at least one termination on described seaming chuck and the described push-down head, the end face of described termination is oval and its big or small and described through hole coupling, when in the described through hole rare earth powder being housed, described push-down head stretches into from the lower end of described through hole, and described seaming chuck stretches into from the upper end of described through hole the powder compression is obtained the product green compact.
2. a kind of rare earth mould according to claim 1 is characterized in that the long diameter of cross section of described through hole and the ratio of short diameter are 1.2 ~ 1.4.
3. a kind of rare earth mould according to claim 1 is characterized in that the material of described seaming chuck and described push-down head is stainless steel or 70Mn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220469750 CN202824653U (en) | 2012-09-14 | 2012-09-14 | Rare earth forming mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220469750 CN202824653U (en) | 2012-09-14 | 2012-09-14 | Rare earth forming mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202824653U true CN202824653U (en) | 2013-03-27 |
Family
ID=47936446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220469750 Expired - Fee Related CN202824653U (en) | 2012-09-14 | 2012-09-14 | Rare earth forming mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202824653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317130A (en) * | 2013-06-08 | 2013-09-25 | 徐州金石彭源稀土材料厂 | Mold for producing permanent magnet material radial columns and using method thereof |
-
2012
- 2012-09-14 CN CN 201220469750 patent/CN202824653U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317130A (en) * | 2013-06-08 | 2013-09-25 | 徐州金石彭源稀土材料厂 | Mold for producing permanent magnet material radial columns and using method thereof |
| CN103317130B (en) * | 2013-06-08 | 2016-01-20 | 江苏金石稀土有限公司 | A kind of mould and using method thereof preparing permanent-magnet material radial column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20170914 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |