CN203917911U - A kind of Nd-Fe-B powder oriented moulding mould - Google Patents
A kind of Nd-Fe-B powder oriented moulding mould Download PDFInfo
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- CN203917911U CN203917911U CN201420274833.2U CN201420274833U CN203917911U CN 203917911 U CN203917911 U CN 203917911U CN 201420274833 U CN201420274833 U CN 201420274833U CN 203917911 U CN203917911 U CN 203917911U
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- powder
- low punch
- push rod
- feeding box
- moulding mould
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Abstract
The utility model discloses a kind of Nd-Fe-B powder oriontation shaping device, comprise mould magnetic conduction housing and the orientation cartridge for neodymium iron boron powder orientation that is positioned at the relative both sides of mould magnetic conduction housing, described mould magnetic conduction housing surrounds powder pressing die cavity, in described powder pressing die cavity, be provided with the low punch push rod for powder pressing, the top of described mould magnetic conduction housing is provided with movably feeding device, on described low punch push rod, is provided with little exciting part.The use of the reinforced oriented moulding mould of the utility model neodymium iron boron magnetic body powder, can improve the powder frictional force of powder in oriented moulding process, make powder frictional force cause the loss of the degree of orientation to be reduced to minimum, in reinforced process, expect the each portion in chamber uniform filling, make size uniform after blank sintering.
Description
Technical field
The utility model relates to ferrimagnet and manufactures field, is specifically related to the orientation die mould of sintered NdFeB blank.
Background technology
In the orientation die mould production process of neodymium iron boron magnetic body, need to carry out oriented moulding by magnetize power supply and mould of orientation, first the disposable powder die cavity that adds to, and then orientation compacting, because the disposable die cavity that adds to of powder, causes the unordered accumulation of powder and inhomogeneous, even if utilize repeatedly orientation, but orientation is the frictional force between powder when die mould, also can affect shape and final magnetic property after the powder degree of orientation, magnet sintering.
Summary of the invention
The purpose of this utility model is to provide one can make the powder degree of orientation obtain larger raising, and the more uniform method of size after sintering.
A kind of Nd-Fe-B powder oriontation shaping device of the present utility model, comprise relative two magnetic conductive boards and two blocks of relative non magnetic side plates, the outside of described magnetic conductive board is provided with the orientation cartridge for the final orientation of neodymium iron boron powder, described magnetic conductive board and non magnetic side plate surround powder pressing die cavity, the top of described powder pressing die cavity is provided with movably feeding device, in described powder pressing die cavity, be provided with the lower flushing device for powder pressing, described lower flushing device is provided with exciting part.
Described movably feeding device comprises Feeding box and Feeding box guide groove, and the bottom of described Feeding box is provided with the guide plate corresponding with Feeding box guide groove, and guide plate can slide along Feeding box guide groove.
The bottom of described Feeding box is provided with material scraping plate.
Described Feeding box is provided with vibrating device, and described vibrating device can be such as the electric vibrator with spring or pneumatic vibrator.
Described lower flushing device comprises low punch and low punch push rod, and described exciting part is located on low punch push rod.
Described exciting part is the oriented coils being wrapped on low punch push rod.
Described exciting part is the base cartridge that is connected to low punch push rod bottom.
Described exciting part comprises the oriented coils being wrapped on low punch push rod and is connected to the bottom cartridge of low punch push rod bottom.
The use of the reinforced oriented moulding mould of the utility model neodymium iron boron magnetic body powder, can improve the powder frictional force of powder in oriented moulding process, make powder frictional force cause the loss of the degree of orientation to be reduced to minimum, in reinforced process, expect the each portion in chamber uniform filling, make size uniform after blank sintering.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A sectional structure schematic diagram in Fig. 1;
In figure: 01 powder, 02 Feeding box, 03 electric vibrator, 04 Feeding box guide groove, 05 non magnetic side plate, 06 bottom cartridge, 07 low punch push rod, 08 low punch, 09 magnetic conductive board, 10 oriented coils, 11 orientation cartridges, 12 material scraping plates, 13 guide plates with spring.
Detailed description of the invention
As Fig. 1, shown in Fig. 2, a kind of Nd-Fe-B powder oriented moulding mould of the present utility model, comprise relative two magnetic conductive boards 09 and two blocks of relative non magnetic side plates 05, the outside of magnetic conductive board 09 is provided with the orientation cartridge 11 for the final orientation of neodymium iron boron powder, magnetic conductive board 09 surrounds powder pressing die cavity with non magnetic side plate 05, the top of powder pressing die cavity is provided with movably gradation feeding device, this movably gradation feeding device comprise Feeding box 02 and Feeding box guide groove 04, the bottom of Feeding box 02 is provided with the guide plate corresponding with Feeding box guide groove 04 13, guide plate 13 can slide along Feeding box guide groove 04, the bottom of Feeding box 02 is connected to the material scraping plate 12 of guide groove, is also provided with the electric vibrator 03 with spring on Feeding box 02.In powder pressing die cavity, be provided with the lower flushing device for powder pressing, this lower flushing device comprises low punch 08 and low punch push rod 07, exciting part is located on low punch push rod 07, this exciting part comprises the oriented coils 10 being wrapped on low punch push rod 07 and is connected to the bottom cartridge 06 of low punch push rod 07 bottom, and described oriented coils 10 also can be arranged on low punch push rod 07 inside.
The utility model in use, adds to Feeding box by the powder that weighs up weight, and magazine gas shock starts vibration, makes powder loose even in magazine; Now, magazine starts to walk up and down in guide groove evenly reinforced, and from die cavity top process time, because the factor of gravity and magazine gas shock, powder falls to die cavity; Powder fall number can be by the magazine speed adjustment of walking up and down, coordinate undershoot to be constantly displaced downwardly to final reinforced height from die cavity mouth, make each reinforced back and forth after the powder feed degree of depth even; Reinforced time, the exciting part at low punch push rod place starts to add very little exciting current or base cartridge with little magnetic field excitation, and powder is established uniformly on low punch; By repeatedly evenly reinforced and small electric stream swing in reinforced back and forth, powder is uniformly distributed in magazine; After reinforced, be finally orientated with the running current of cartridge, because of before final orientation, powder is to establish uniformly distribution, in the time strengthening orientation electric current, powder produces float force, the friction of powder in the time of orientation is reduced to minimum, and the powder concussion of moment is conducive to orientation.
Claims (8)
1. a Nd-Fe-B powder oriented moulding mould, it is characterized in that, comprise relative two magnetic conductive boards (09) and relative two blocks of non magnetic side plates (05), the outside of described magnetic conductive board (09) is provided with the orientation cartridge (11) for the final orientation of neodymium iron boron powder, described magnetic conductive board (09) surrounds powder pressing die cavity with non magnetic side plate (05), the top of described powder pressing die cavity is provided with movably feeding device, in described powder pressing die cavity, be provided with the lower flushing device for powder pressing, described lower flushing device is provided with exciting part.
2. Nd-Fe-B powder oriented moulding mould as claimed in claim 1, it is characterized in that, described movably feeding device comprises Feeding box (02) and Feeding box guide groove (04), the bottom of described Feeding box (02) is provided with the guide plate (13) corresponding with Feeding box guide groove (04), and guide plate (13) can slide along Feeding box guide groove (04).
3. Nd-Fe-B powder oriented moulding mould as claimed in claim 2, is characterized in that, the bottom of described Feeding box (02) is provided with material scraping plate (12).
4. Nd-Fe-B powder oriented moulding mould as claimed in claim 2, is characterized in that, described Feeding box (02) is provided with vibrating device.
5. Nd-Fe-B powder oriented moulding mould as claimed in claim 1, is characterized in that, described lower flushing device comprises low punch (08) and low punch push rod (07), and described exciting part is located on low punch push rod (07).
6. Nd-Fe-B powder oriented moulding mould as claimed in claim 5, is characterized in that, described exciting part is for being wrapped in the oriented coils (10) on low punch push rod (07).
7. Nd-Fe-B powder oriented moulding mould as claimed in claim 5, is characterized in that, described exciting part is for being connected to the bottom cartridge (6) of low punch push rod (07) bottom.
8. Nd-Fe-B powder oriented moulding mould as claimed in claim 5, is characterized in that, described exciting part comprises the oriented coils (10) being wrapped on low punch push rod (07) and is connected to the bottom cartridge (6) of low punch push rod (07) bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274833.2U CN203917911U (en) | 2014-05-27 | 2014-05-27 | A kind of Nd-Fe-B powder oriented moulding mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420274833.2U CN203917911U (en) | 2014-05-27 | 2014-05-27 | A kind of Nd-Fe-B powder oriented moulding mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203917911U true CN203917911U (en) | 2014-11-05 |
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Family Applications (1)
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| CN201420274833.2U Active CN203917911U (en) | 2014-05-27 | 2014-05-27 | A kind of Nd-Fe-B powder oriented moulding mould |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990796A (en) * | 2014-05-27 | 2014-08-20 | 安徽大地熊新材料股份有限公司 | Novel NdFeB powder orientation forming 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 |
| CN112635153A (en) * | 2021-03-05 | 2021-04-09 | 广东高鑫信息股份有限公司 | Method and device for casting orientation molding of circular magnetic sheet and product |
| CN113178540A (en) * | 2021-04-13 | 2021-07-27 | 贵州梅岭电源有限公司 | Method for improving flatness of thermal battery sheet |
-
2014
- 2014-05-27 CN CN201420274833.2U patent/CN203917911U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103990796A (en) * | 2014-05-27 | 2014-08-20 | 安徽大地熊新材料股份有限公司 | Novel NdFeB powder orientation forming die |
| CN103990796B (en) * | 2014-05-27 | 2016-06-29 | 安徽大地熊新材料股份有限公司 | A kind of Nd-Fe-B powder oriented moulding mould |
| 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 |
| CN112635153A (en) * | 2021-03-05 | 2021-04-09 | 广东高鑫信息股份有限公司 | Method and device for casting orientation molding of circular magnetic sheet and product |
| CN112635153B (en) * | 2021-03-05 | 2021-05-11 | 广东高鑫信息股份有限公司 | Method and device for casting orientation molding of circular magnetic sheet and product |
| CN113178540A (en) * | 2021-04-13 | 2021-07-27 | 贵州梅岭电源有限公司 | Method for improving flatness of thermal battery sheet |
| CN113178540B (en) * | 2021-04-13 | 2022-07-29 | 贵州梅岭电源有限公司 | Method for improving flatness of thermal battery slice |
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