CN201720426U - Molding device of neodymium iron boron material - Google Patents
Molding device of neodymium iron boron material Download PDFInfo
- Publication number
- CN201720426U CN201720426U CN2010202346069U CN201020234606U CN201720426U CN 201720426 U CN201720426 U CN 201720426U CN 2010202346069 U CN2010202346069 U CN 2010202346069U CN 201020234606 U CN201020234606 U CN 201020234606U CN 201720426 U CN201720426 U CN 201720426U
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- mould
- press
- metal die
- elastomer
- magnetic
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Abstract
The utility model discloses a molding device of a neodymium iron boron material, comprising a press body, an electromagnet, a hydraulic device, a metal mould and an elastomer mould, wherein the press body comprises a rack, an upper pressure head and a lower pressure head which are made of non-magnetic materials and are fixed on the rack; the upper surface and the lower surface of the metal mould are made of non-magnetic materials, and the left surface and the right surface thereof are made of magnetic materials; the metal mould is internally provided with the elastomer mould; and a cavity between the metal mould and the elastomer mould is communicated with the hydraulic device. The utility model has the advantages that: 1. the press related by the invention can finish the function on one device, while an orientated molding press and an isostatic press can realize in the existing sintered NdFeB molding technique; and 2. the molding device improves the outturn percentage of materials, reduces the production cost, and has stronger competitive advantage.
Description
Technical field
The utility model relates to a kind of shaped device of neodymium-iron-boron magnetic material.
Background technology
At present, in the production industry of neodymium-iron-boron magnetic material, one improves the density of NdFeB blank again by the orientation compression moulding of automatic Magnetic field press realization neodymium-iron-boron magnetic material by isostatic pressing process.The oriented moulding press mainly contains two classes: vertical magnetic field press and parallel Magnetic field press.What generally adopt is the vertical magnetic field press, be that electromagnet is fixed on the press operation platform, two groups of coil left-right symmetry distribute, pressure head is in upper-lower position, because NdFeB material pressure of living in is perpendicular to magnetic field line, shortcoming is to exist frictional force to cause the crystal grain direction of magnetization of finished product fringe region to deflect owing to magnetic and mould in NdFeB material compression moulding process, has influenced magnet magnetic property uniformity; Another kind is the parallel magnetic field press, and promptly electromagnet is fixed on the pressure head, and the magnetic line of force of generation is consistent with the press power direction.Shortcoming is that the frictional force that acts in the forming process of pressure causes many little crystal grain direction of magnetizations that deflection has taken place, and the magnetic property that the method causes descends more remarkable, and practical application is less.Because the deficiency that above-mentioned two kinds of methods exist causes that deviation appears in finished product magnetic property uniformity in following process, causes the material volume recovery to reduce, production cost improves.
The utility model content
Technical problem to be solved in the utility model is to overcome the above-mentioned deficiency of prior art and shaped device that a kind of NdFeB material is provided, can reduce effectively because frictional force acts on the magnetic powder particle that causes a part to be orientated in the forming process deflects by this device, improve the uniformity of magnetic property, reduced production cost of products.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
A kind of shaped device of NdFeB material, comprise press body, electromagnet, hydraulic means, metal die and elastomer moulds, described press body comprises seaming chuck, the push-down head made by non-magnet material on frame, the fixed frame, the metal die top and bottom by non-magnet material form, about face form by permeability magnetic material, the built-in elastomer moulds of metal die, metal die communicates with hydraulic means with cavity between the elastomer moulds.
When above-mentioned moulding press uses, NdFeB magnetic powder is placed rubber mold, rubber mold places metal die again, installs metal die, uses push-down head and fixes metal die.Again electromagnet energising back is formed magnetic field center at the magnet forming area, in waiting static pressure magnetic field, by hydraulic means hydraulic oil is injected cavity between metal die and the rubber mold, the comprehensive even stressed compression moulding of the NdFeB magnetic powder under high oil pressure in the rubber mold.
Owing to adopt not magnetic conduction pressure head, last push-down head only plays the effect of lower baffle plate on the fixed mould, again owing to adopt flexible rubber, magnet comprehensive stressed evenly, so the magnetic powder particle that has been orientated of magnet fringe region ratio minimizing that deflects.
Compared with prior art, advantage of the present utility model is:
1, utilization rubber pattern, hydraulic means carries out moulding, reduced significantly Nd-Fe-Bo permanent magnet material in the existing moulding process because the magnetic powder particle that magnetic and mould contact friction force cause fringe region to be orientated deflects and then the magnetic property uniformity that causes is bad.
2, on 1 equipment, finish the function that realizes by oriented moulding press and 2 ability of isostatic pressing machine in original Sintered NdFeB moulding process.
3,, reduced because of frictional force causes blank heating, oxidation, shortcoming such as catch fire owing to reduced the stroke of magnetic in mould in the pressing process.
4, improve the material volume recovery, reduced production cost, had stronger competitive advantage.
Description of drawings
Fig. 1 is the front section view of the utility model embodiment.
Fig. 2 bows to cutaway view for the utility model embodiment's.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of shaped device of NdFeB material comprises press body, electromagnet 3, hydraulic means 9, electric control gear, metal die 6 and rubber mold 5.
The press body comprises seaming chuck 1, the push-down head 7 made by non-magnet material on frame (not drawing among the figure), the fixed frame.
Seaming chuck 1, push-down head 7 are by electric control gear control knee-action, and electromagnet 3 is also controlled by electric control gear.
Hydraulic means 9 is fixed on the frame.
Metal die 6 top and bottom by non-magnet material form, about face form by permeability magnetic material, link to each other with hydraulic test 9 by importing and exporting pipeline 8 in the cavity 2 between the built-in rubber mold 5 of metal die, metal die 6 and rubber mold 5.
Adopt above-mentioned moulding press, the magnet forming process of NdFeB material is as follows:
1, installation mold: install according to the mould that designs, install hydraulic means.
2, charging: with the elastic mould magnetic material 4 of packing into, the good seal elastic mould is put into metal die again in guard box, the good seal metal die, and last push-down head is fixed mould.
3, pre-magnetizing: electromagnet coil power forms the highfield, the stabilizing magnetic field certain hour.
4, logical oil, add oil pressure: begin logical oil behind the mould good seal, begin slow pressurization after magnetic field is stable, pressure reaches setting value back pressurize certain hour, finishes moulding.
5, demagnetization: electromagnet coil outage, demagnetization.
6, subtract oil pressure, drain the oil: subtract oil pressure after moulding is finished, drain the oil.
7, discharging: seaming chuck rises, and takes out rubber mold, takes out magnet again and is for further processing.
Claims (2)
1. the shaped device of a NdFeB material, it is characterized in that: comprise press body, electromagnet, hydraulic means, metal die and elastomer moulds, described press body comprises seaming chuck, the push-down head made by non-magnet material on frame, the fixed frame, the metal die top and bottom by non-magnet material form, about face form by permeability magnetic material, the built-in elastomer moulds of metal die, metal die communicates with hydraulic means with cavity between the elastomer moulds.
2. the shaped device of NdFeB material as claimed in claim 1, it is characterized in that: described elastomer moulds is a rubber mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202346069U CN201720426U (en) | 2010-06-23 | 2010-06-23 | Molding device of neodymium iron boron material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202346069U CN201720426U (en) | 2010-06-23 | 2010-06-23 | Molding device of neodymium iron boron material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201720426U true CN201720426U (en) | 2011-01-26 |
Family
ID=43488710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202346069U Expired - Lifetime CN201720426U (en) | 2010-06-23 | 2010-06-23 | Molding device of neodymium iron boron material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201720426U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850421A (en) * | 2010-06-23 | 2010-10-06 | 宁波永久磁业有限公司 | Molding device for NdFeB materials |
| CN106653267A (en) * | 2016-12-07 | 2017-05-10 | 北京京磁电工科技有限公司 | Orientation molding method of neodymium-iron-boron magnet |
-
2010
- 2010-06-23 CN CN2010202346069U patent/CN201720426U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850421A (en) * | 2010-06-23 | 2010-10-06 | 宁波永久磁业有限公司 | Molding device for NdFeB materials |
| CN101850421B (en) * | 2010-06-23 | 2012-10-17 | 宁波永久磁业有限公司 | Molding device for NdFeB materials |
| CN106653267A (en) * | 2016-12-07 | 2017-05-10 | 北京京磁电工科技有限公司 | Orientation molding method of neodymium-iron-boron magnet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110126 Effective date of abandoning: 20130710 |
|
| RGAV | Abandon patent right to avoid regrant |