CN201940605U - Female mould for bonding neodymium iron boron magnet compression molding - Google Patents
Female mould for bonding neodymium iron boron magnet compression molding Download PDFInfo
- Publication number
- CN201940605U CN201940605U CN2011200404863U CN201120040486U CN201940605U CN 201940605 U CN201940605 U CN 201940605U CN 2011200404863 U CN2011200404863 U CN 2011200404863U CN 201120040486 U CN201120040486 U CN 201120040486U CN 201940605 U CN201940605 U CN 201940605U
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- CN
- China
- Prior art keywords
- iron boron
- neodymium iron
- former
- boron magnet
- female mould
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Abstract
The utility model discloses a female mould for bonding neodymium iron boron magnet compression molding, which comprises a female mould body provided with a frustum-shaped through hole gradually increasing in hole diameter from bottom to top. By means of the structure, a neodymium iron boron magnet has stress releasing space in demoulding, and frictional force of the outer wall of the neodymium iron boron magnet with the inner wall of the female mould body can be reduced so as to protect the female mould body. Furthermore, the service life of the female mould is prolonged, and size difference of the neodymium iron boron magnet with big end up can be improved simultaneously.
Description
Technical field
The utility model relates to a kind of mould, specifically is the former that is used for bonded neodymium-iron-boron magnet compression moulding.
Background technology
Along with development of science and technology, the range of application of neodymium iron boron magnetic body is more and more wider, requirement to neodymium iron boron magnetic body is also more and more higher, therefore people have higher requirement to the technology and the equipment of casting neodymium iron boron magnetic body, and the former that wherein makes the neodymium iron boron magnetic body moulding is exactly one of equipment of casting neodymium iron boron magnetic body key.Existing former mostly is ring-type, its overall dimensions is even, neodymium iron boron magnetic body then is subjected to molded at the former inwall, for highly lower neodymium iron boron magnetic body, neodymium iron boron magnetic body quality after the moulding is better, yet, for highly higher neodymium iron boron magnetic body, neodymium iron boron magnetic body demoulding distance, because of neodymium iron boron magnetic body stress can't in time discharge, cause the neodymium iron boron magnetic body outer wall to press the former inwall, frictional force that neodymium iron boron magnetic body is relative with former when moving is big, very easily abrade the former inwall, this has just shortened the service life of former.Simultaneously, because of neodymium iron boron magnetic body can't discharge stress in former inside, when its upper end when deviating from former, stress can be concentrated, discharge suddenly, and neodymium iron boron magnetic body upper end size will be obviously greater than the lower end, thereby makes the neodymium iron boron magnetic body of production can not satisfy the requirement of expectation.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of neodymium iron boron magnetic body of being convenient to break away from former, and in the process of the neodymium iron boron magnetic body demoulding former self has been damaged the little former that is used for bonded neodymium-iron-boron magnet compression moulding.
The purpose of this utility model is achieved through the following technical solutions: be used for the former of bonded neodymium-iron-boron magnet compression moulding, comprise the former body, described former body is provided with the truncated cone-shaped through hole that is increased gradually by bottom to aperture, top.
The tapering of described truncated cone-shaped through hole is 0.01～0.015.
Described former body is circular, and the annulus perforation of this circular former body constitutes the truncated cone-shaped through hole.
The utility model compared with prior art has the following advantages and beneficial effect: (1) the utility model is by being provided with the truncated cone-shaped through hole that is increased gradually by bottom to aperture, top in the former body, when the neodymium iron boron magnetic body demoulding of moulding, neodymium iron boron magnetic body can be slow in running, discharge stress uniformly, both reduced frictional force to the former inwall, promptly reduce frictional force to the truncated cone-shaped through-hole side wall, improve the service life of former, also avoided neodymium iron boron magnetic body stress to discharge the difference obvious phenomenon of the upper end of the neodymium iron boron magnetic body that causes suddenly, improved the neodymium iron boron magnetic body uniformity at two ends up and down greater than the lower end.
(2) the utility model truncated cone-shaped through hole is 0.01～0.015 by the tapering on bottom to top, and range of taper is less, can not influence the moulding of neodymium iron boron magnetic body.
Description of drawings
Fig. 1 is the sectional structure schematic diagram when being set as the type neodymium iron boron magnetic body in the utility model.
Pairing Reference numeral is in the accompanying drawing: 1, former body, 2, neodymium iron boron magnetic body.
The specific embodiment
The utility model is described in further detail below in conjunction with embodiment, but embodiment of the present utility model is not limited thereto.
Embodiment:
As shown in Figure 1, the utility model comprises former body 1, and as preferably, former body 1 is made as circular, is convenient to the fixing of former body 1 like this.Former body 1 is provided with the truncated cone-shaped through hole that is increased gradually by bottom to aperture, top, the truncated cone-shaped through hole has a tapering, if tapering is bigger, then the neodymium iron boron magnetic body after the moulding 2 can form the frustum shape, this is not easy to the application of neodymium iron boron magnetic body 2, so the tapering of the preferred truncated cone-shaped through hole of the utility model is 0.01～0.015.Because former body 1 is circular,, truncated cone-shaped through hole of the present utility model constitutes so being bored a hole by the annulus of former body 1.
When needs make the neodymium iron boron magnetic body 2 of moulding carry out the demoulding, neodymium iron boron magnetic body 2 can discharge stress slowly, uniformly in running, both reduced former body 1 inwall, be the frictional force of truncated cone-shaped through-hole side wall, improve service life of the present utility model, also avoided neodymium iron boron magnetic body 2 stress to discharge the difference obvious phenomenon of the upper end of the neodymium iron boron magnetic body 2 that causes suddenly, improved the uniformity at neodymium iron boron magnetic body two ends about in the of 2 greater than the lower end.
As mentioned above, then can well realize the utility model.
Claims (3)
1. be used for the former of bonded neodymium-iron-boron magnet compression moulding, it is characterized in that: comprise the former body, described former body is provided with the truncated cone-shaped through hole that is increased gradually by bottom to aperture, top.
2. the former that is used for bonded neodymium-iron-boron magnet compression moulding according to claim 1 is characterized in that: the tapering of described truncated cone-shaped through hole is 0.01～0.015.
3. the former that is used for bonded neodymium-iron-boron magnet compression moulding according to claim 1 and 2 is characterized in that: described former body is circular, and the annulus perforation of this circular former body constitutes the truncated cone-shaped through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200404863U CN201940605U (en) | 2011-02-17 | 2011-02-17 | Female mould for bonding neodymium iron boron magnet compression molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200404863U CN201940605U (en) | 2011-02-17 | 2011-02-17 | Female mould for bonding neodymium iron boron magnet compression molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201940605U true CN201940605U (en) | 2011-08-24 |
Family
ID=44467956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200404863U Expired - Fee Related CN201940605U (en) | 2011-02-17 | 2011-02-17 | Female mould for bonding neodymium iron boron magnet compression molding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201940605U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921947A (en) * | 2012-11-20 | 2013-02-13 | 殷逢宝 | Improved structure of powder metallurgy die |
| CN103008655A (en) * | 2013-01-11 | 2013-04-03 | 滁州亚利模具设备有限公司 | Powder metallurgy die |
| CN103331444A (en) * | 2013-07-05 | 2013-10-02 | 益阳市新纪元粉末冶金有限公司 | Compression forming mold for sintered metal product, application thereof and forming mold release method |
| CN109604590A (en) * | 2019-01-28 | 2019-04-12 | 成都图南电子有限公司 | It is a kind of for bonding the single mode multi-cavity molding die of ferro-aluminum boron |
| CN115007859A (en) * | 2022-06-23 | 2022-09-06 | 宁波京甬磁业有限公司 | Forming orientation process of neodymium iron boron magnet |
-
2011
- 2011-02-17 CN CN2011200404863U patent/CN201940605U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921947A (en) * | 2012-11-20 | 2013-02-13 | 殷逢宝 | Improved structure of powder metallurgy die |
| CN103008655A (en) * | 2013-01-11 | 2013-04-03 | 滁州亚利模具设备有限公司 | Powder metallurgy die |
| CN103008655B (en) * | 2013-01-11 | 2016-02-24 | 滁州亚利模具设备有限公司 | A kind of powder metallurgy die |
| CN103331444A (en) * | 2013-07-05 | 2013-10-02 | 益阳市新纪元粉末冶金有限公司 | Compression forming mold for sintered metal product, application thereof and forming mold release method |
| CN103331444B (en) * | 2013-07-05 | 2015-09-30 | 益阳市新纪元粉末冶金有限公司 | Sintered metal product press-moulding die and application and shaping and demoulding method |
| CN109604590A (en) * | 2019-01-28 | 2019-04-12 | 成都图南电子有限公司 | It is a kind of for bonding the single mode multi-cavity molding die of ferro-aluminum boron |
| CN115007859A (en) * | 2022-06-23 | 2022-09-06 | 宁波京甬磁业有限公司 | Forming orientation process of neodymium iron boron magnet |
| CN115007859B (en) * | 2022-06-23 | 2024-05-03 | 宁波京甬磁业有限公司 | Molding orientation process 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20130217 |