CN203044894U - Forming orientation degree die of sintered neodymium iron boron material powder - Google Patents
Forming orientation degree die of sintered neodymium iron boron material powder Download PDFInfo
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- CN203044894U CN203044894U CN 201320063158 CN201320063158U CN203044894U CN 203044894 U CN203044894 U CN 203044894U CN 201320063158 CN201320063158 CN 201320063158 CN 201320063158 U CN201320063158 U CN 201320063158U CN 203044894 U CN203044894 U CN 203044894U
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Abstract
The utility model relates to clamps for preparing a neodymium iron boron permanent magnet, in particular to a forming orientation degree die which solves the problem that when an existing forming die carries out profiling processes, magnetic lines of force are not centralized enough, and the orientation degree of material powder is poor. The forming orientation degree die of sintered neodymium iron boron material powder comprises a permeability front side plate (1), a permeability back side plate (2), a non-permeability left clamping plate (3) and a non-permeability right clamping plate (4), wherein the permeability front side plate, the permeability back side plate, the non-permeability left clamping plate and the non-permeability right clamping plate are combined to form a forming cavity (5). The permeability front side plate comprises a permeability material plate (11), non-permeability material plates (12) are symmetrically welded on two side edges of the permeability material plate, and clamping grooves (10) for clamping the non-permeability left clamping plate and the non-permeability right plate are machined in the non-permeability material plates. The structure of the permeability back side plate is same as the structure of the permeability front side plate. The forming orientation degree die of the sintered neodymium iron boron material powder is reasonable in design and simple in structure.
Description
Technical field
The utility model relates to the anchor clamps that prepare Nd-Fe-B permanent magnet, is specially a kind of moulding degree of orientation mould.
Background technology
Nd-Fe-Bo permanent magnet material is with metallic bond compound N d
2Fe
14B
1Be the permanent-magnet material on basis, neodymium iron boron has high magnetic energy product and coercivity.Nd-Fe-Bo permanent magnet material has obtained to use widely in modern industry and electronic technology, makes device miniaturization, lightweight, slimmings such as instrument and meter, motor, magnetic separation magnetization.Powder metallurgical technique is adopted in existing Nd-Fe-Bo permanent magnet material manufacturing, and technological process is as follows: batching-melting-powder process-die mould-sintering tempering-magnetic detection-mill processing-machining-plating-finished product.
In die mould, mould as shown in Figure 4, comprise magnetic conduction front side board 1, magnetic conduction back side panel 2, non-magnetic conduction left side clamping plate 3, the right clamping plate 4 of non-magnetic conduction, be processed with two on described magnetic conduction front side board 1 and the magnetic conduction back side panel 2 respectively and be used for the left and right clamping plate 3 of the non-magnetic conduction of engaging, 4 draw-in groove 10, formation die cavity 5(is prismatic when the left and right clamping plate 3 of described non-magnetic conduction, 4 are respectively in the corresponding draw-in groove 10 that places on the forward and backward side plate 1 of magnetic conduction, 2).Be formed with on the forward and backward side plate of described magnetic conduction this mould is fixed on fixedly step 9 on the forming press.The forward and backward side plate of described magnetic conduction and the left and right clamping plate of non-magnetic conduction are by bolting, when namely the left and right clamping plate of non-magnetic conduction are fastened in the draw-in groove of the forward and backward side plate of magnetic conduction, by bolt the left and right clamping plate of non-magnetic conduction are fixed in the draw-in groove of the forward and backward side plate of magnetic conduction.
At present, at the forward and backward side plate 1 of the magnetic conduction of magnetizing direction, the 2 general monoblock magnetic conductive boards that adopt, the left and right clamping plate on non-magnetizing direction are magnetic conductive board not.Because being close to the forward and backward side plate monoblock of electromagnet cartridge is magnetic conductive board, when making die mould, the magnetic line of force is concentrated inadequately, the degree of orientation of material powder is not good, also has very big room for promotion.In addition, residual too much accumulated powder has caused the branch magnetic phenomenon in the die clearance in pressing process.
Summary of the invention
The utility model is in order to solve existing casted die mould when carrying out die mould technology, and the magnetic line of force is concentrated inadequately, the not good problem of the material powder degree of orientation, and a kind of moulding degree of orientation mould of sintered NdFeB material powder is provided.
The utility model is to adopt following technical scheme to realize:
A kind of moulding degree of orientation mould of sintered NdFeB material powder, comprise magnetic conduction front side board, magnetic conduction back side panel, non-magnetic conduction left side clamping plate, the right clamping plate of non-magnetic conduction, described magnetic conduction front side board, magnetic conduction back side panel, non-magnetic conduction left side clamping plate, the right clamping plate combination of non-magnetic conduction back form die cavity, described magnetic conduction front side board comprises the permeability magnetic material plate, be symmetrically welded with the non-magnet material plate on the dual-side of described permeability magnetic material plate, be processed with the draw-in groove for the left and right clamping plate of the described non-magnetic conduction of engaging on the described non-magnet material plate.
The structure of described magnetic conduction back side panel is identical with described magnetic conduction front side board.
During work, because the zone that mould described in the utility model is close to the electromagnet cartridge except the pressed compact forming area is the permeability magnetic material, be non-magnet_conductible material around all the other, loss reduced when the pressed compact that the feasible magnetic line of force that comes out from the electromagnet cartridge passes through die cavity was regional, thereby the density of line of magnetic force in the raising mold cavity, make the material powder obtain the better degree of orientation, and then improve the remanent magnetism of Nd-Fe-B permanent magnet, and also effectively eliminated the branch magnetic phenomenon that in the die mould process, produces.
The utility model is reasonable in design, simple in structure, has solved existing casted die mould when carrying out die mould technology, and the magnetic line of force is concentrated inadequately, the not good problem of the material powder degree of orientation.
Description of drawings
Fig. 1 is the structural representation of the forward and backward side plate of magnetic conduction.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the vertical view of the forward and backward side plate of magnetic conduction.
Fig. 4 is existing mould structure schematic diagram.
Among the figure, 1-magnetic conduction front side board, 2-magnetic conduction back side panel, the non-magnetic conduction of 3-left side clamping plate, the right clamping plate of the non-magnetic conduction of 4-, the 5-die cavity, the 6-bolt, the 7-bakelite plate, the non-magnetic conduction interior plate of 8-, 9-is step fixedly, 10-draw-in groove, 11-permeability magnetic material plate, 12-non-magnet material plate.
The specific embodiment
Below in conjunction with accompanying drawing specific embodiment of the utility model is elaborated.
As shown in Figure 1, 2, 3, a kind of moulding degree of orientation mould of sintered NdFeB material powder, comprise magnetic conduction front side board 1, magnetic conduction back side panel 2, non-magnetic conduction left side clamping plate 3, the right clamping plate 4 of non-magnetic conduction, described magnetic conduction front side board 1, magnetic conduction back side panel 2, non-magnetic conduction left side clamping plate 3, the right clamping plate of non-magnetic conduction 4 combination backs form die cavity 5, described magnetic conduction front side board 1 comprises permeability magnetic material plate 11, be symmetrically welded with non-magnet material plate 12 on the dual-side of described permeability magnetic material plate 11, be processed with on the described non-magnet material plate 12 for engaging described non-magnetic conduction left and right clamping plate 3,4 draw-in groove 10.
The structure of described magnetic conduction back side panel 2 is identical with described magnetic conduction front side board 1.
During concrete enforcement, as shown in Figure 2, in described die cavity 5, the left and right clamping plate 3 of described non-magnetic conduction, 4 fill up by bakelite plate 7, non-magnetic conduction interior plate 8 are arranged respectively successively, in order to change the specification of described die cavity 5, produce the Nd-Fe-B permanent magnet of different model.
Be formed with the fixedly step 9 of fixing this mould on the non-magnet material plate 12 on the forward and backward side plate 1 of described magnetic conduction, 2.
The chemical name of described bakelite is in phenoplasts, the characteristic of bakelite be do not absorb water, non-conductive, high temperature resistant, intensity is high, be used on the electrical equipment, because picture blockishness insulating properties height, plasticity are good, so be called " bakelite " more.Bakelite is the phenolic resins with powdery, after adding wood sawdust, asbestos or potter's clay etc. and mixing, at high temperature extrudes finished product with mould.
Claims (2)
1. the moulding degree of orientation mould of a sintered NdFeB material powder, comprise magnetic conduction front side board (1), magnetic conduction back side panel (2), non-magnetic conduction left side clamping plate (3), the right clamping plate (4) of non-magnetic conduction, described magnetic conduction front side board (1), magnetic conduction back side panel (2), non-magnetic conduction left side clamping plate (3), the right clamping plate of non-magnetic conduction (4) combination back forms die cavity (5), it is characterized in that: described magnetic conduction front side board (1) comprises permeability magnetic material plate (11), be symmetrically welded with non-magnet material plate (12) on the dual-side of described permeability magnetic material plate (11), be processed with on the described non-magnet material plate (12) for the described non-magnetic conduction of an engaging left side, right clamping plate (3,4) draw-in groove (10);
The structure of described magnetic conduction back side panel (2) is identical with described magnetic conduction front side board (1).
2. the moulding degree of orientation mould of sintered NdFeB material powder according to claim 1 is characterized in that: in described die cavity (5), the left and right clamping plate of described non-magnetic conduction (3,4) respectively successively pad by bakelite plate (7), non-magnetic conduction interior plate (8) are arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320063158 CN203044894U (en) | 2013-02-05 | 2013-02-05 | Forming orientation degree die of sintered neodymium iron boron material powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320063158 CN203044894U (en) | 2013-02-05 | 2013-02-05 | Forming orientation degree die of sintered neodymium iron boron material powder |
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| Publication Number | Publication Date |
|---|---|
| CN203044894U true CN203044894U (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320063158 Expired - Fee Related CN203044894U (en) | 2013-02-05 | 2013-02-05 | Forming orientation degree die of sintered neodymium iron boron material powder |
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| CN (1) | CN203044894U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447527A (en) * | 2013-08-07 | 2013-12-18 | 宁波韵升股份有限公司 | Magnet forming die |
| CN104190925A (en) * | 2014-09-16 | 2014-12-10 | 北京京磁强磁材料有限公司 | Compression molding die |
| CN105081315A (en) * | 2015-08-25 | 2015-11-25 | 廊坊京磁精密材料有限公司 | Compression molding mold for sintered nd-fe-b |
-
2013
- 2013-02-05 CN CN 201320063158 patent/CN203044894U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447527A (en) * | 2013-08-07 | 2013-12-18 | 宁波韵升股份有限公司 | Magnet forming die |
| CN104190925A (en) * | 2014-09-16 | 2014-12-10 | 北京京磁强磁材料有限公司 | Compression molding die |
| CN105081315A (en) * | 2015-08-25 | 2015-11-25 | 廊坊京磁精密材料有限公司 | Compression molding mold for sintered nd-fe-b |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130710 Termination date: 20180205 |