CN202752605U - Forming mold of bonded permanent magnet - Google Patents
Forming mold of bonded permanent magnet Download PDFInfo
- Publication number
- CN202752605U CN202752605U CN 201220478212 CN201220478212U CN202752605U CN 202752605 U CN202752605 U CN 202752605U CN 201220478212 CN201220478212 CN 201220478212 CN 201220478212 U CN201220478212 U CN 201220478212U CN 202752605 U CN202752605 U CN 202752605U
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- China
- Prior art keywords
- permanent magnet
- bonded permanent
- mould
- cushion block
- lower cushion
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a forming mould of a bonded permanent magnet. The forming mould comprises a mould body, an upper pressing head and a lower cushion block. The mould body is provided with a longitudinal cavity, the outer diameters of the upper pressing head and the lower cushion block are both matched with the inner diameter of the cavity in terms of size. Moreover, wear-resistant coatings are all arranged on the lower surface of the upper pressing head, the upper surface of the lower cushion block and the inner wall of the cavity of the mould body. The forming mould of the bonded permanent magnet has the advantages that a structure is simple, wear resistance is good, the forming mould of the bonded permanent magnet does not fall easily and is long in service life, and the like. Size precision of the bonded magnet can be improved beneficially, working efficiency can be improved and production cost can be reduced, and practical value is very great. The forming mould of the bonded permanent magnet can be widely applied and popularized.
Description
Technical field
The utility model relates to a kind of mould, specifically, relates to a kind of mould of bonded permanent magnet, belongs to technical field of mold.
Background technology
Compare with sintered magnet, bonded permanent magnet is owing to having that dimensional accuracy is high, mechanical property good, process costs is low, be easy to the advantage such as moulding complicated shape device, thereby is widely used in fields such as instrument and meter, information industry, auto industry, computer automation.The main moulding process of bonded permanent magnet has four kinds of compression molding, injection moulding, extrusion modling, roll formings etc., and wherein to prepare bonded permanent magnet technique the simplest in compression molding, uses the most general.But the mould of using at present exist hardness not high enough, wear no resistance, frequency of utilization is high in addition, is easy to cause mould to damage, scratch, serious wear, service life is short, even causes the problems such as dimensional defects of bonded permanent magnet.And in recent years, along with electronic product to microminiaturized, the complex-shapedization future development such as light, thin, short, little, size index to bonded permanent magnet is also had higher requirement, thereby corresponding mould has also been proposed to have the requirements such as high accuracy, high-wearing feature.
The utility model content
For the problems referred to above that prior art exists, the purpose of this utility model provides a kind of mould with bonded permanent magnet of simple in structure, advantages such as wearability good, hardness is high, long service life, to satisfy the application requirements of bonded permanent magnet.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of mould of bonded permanent magnet comprises die ontology, and described die ontology is provided with vertical cavity, it is characterized in that: also comprise seaming chuck and lower cushion block, the outside dimension of described seaming chuck and lower cushion block is all suitable with the internal diameter size of described cavity; And be equipped with wear-resistant coating at the lower surface of seaming chuck, the upper surface of lower cushion block and the cavity inner wall of die ontology.
As a kind of preferred version, described wear-resistant coating is hard wear-resistant coating.
As further preferred version, described hard wear-resistant coating is that chromium nitride is filmed or tungsten carbide is filmed.
As preferred version further, described thickness of filming is 1～10 nanometer.
Compared with prior art, the mould of the bonded permanent magnet that the utility model provides, have simple in structure, the advantages such as wearability good, difficult drop-off, long service life, be conducive to improve the dimensional accuracy of bonded permanent magnet, can enhance productivity and reduce production costs, have extremely strong practical value, but wide popularization and application.
Description of drawings
Fig. 1 is the structural representation of the mould of a kind of bonded permanent magnet of providing of the utility model.
Among the figure: 1, die ontology; 2, seaming chuck; 3, lower cushion block; 4, cavity; 5, wear-resistant coating.
The specific embodiment
Below in conjunction with drawings and Examples the technical solution of the utility model is done further and to be elaborated.
As depicted in figs. 1 and 2, the mould of a kind of bonded permanent magnet that the utility model provides, comprise die ontology 1, seaming chuck 2 and lower cushion block 3, described die ontology 1 is provided with vertical cavity 4, and the outside dimension of described seaming chuck 2 and lower cushion block 3 is all suitable with the internal diameter size of described cavity 4; And be equipped with wear-resistant coating 5 at the lower surface of seaming chuck 2, the upper surface of lower cushion block 3 and cavity 4 inwalls of die ontology.
When using the utility model, first lower cushion block 3 is put into the bottom of the cavity 4 of die ontology 1, the magnetic powder materials that will prepare again bonded permanent magnet injects in the cavity 4, then import seaming chuck 2, utilize the machine tools such as press vertically to depress seaming chuck 2, keep certain hour, can make bonded permanent magnet reach certain density, remove at last seaming chuck 2 and lower cushion block 3, can obtain the bonded permanent magnet of moulding.
As a kind of preferred version, the hard wear-resistant coating of described wear-resistant coating 5 for having the advantages such as hardness is high, wearability good, difficult drop-off, dry lubrication, thereby be difficult for when making mold work sustaining damage, to improve the mold use life-span, improve the dimensional accuracy of moulding magnet.
As further preferred version, described hard wear-resistant coating is that chromium nitride is filmed or tungsten carbide is filmed, because it had both had higher antiwear characteristic, have again good friction resistant and anti stick characteristic, the easily demoulding, be difficult for making the bonding magnetic to adhere to die surface, can further guarantee dimensional accuracy and the surface quality of moulding magnet; Described thickness of filming is preferably 1～10 nanometer, to avoid affecting the size of mould.
Be necessary at last in this explanation to be: foregoing only is used for the technical solution of the utility model is described in further detail; can not be interpreted as the restriction to the utility model protection domain, some nonessential improvement and adjustment that those skilled in the art makes according to foregoing of the present utility model all belong to protection domain of the present utility model.
Claims (4)
1. the mould of a bonded permanent magnet comprises die ontology, and described die ontology is provided with vertical cavity, it is characterized in that: also comprise seaming chuck and lower cushion block, the outside dimension of described seaming chuck and lower cushion block is all suitable with the internal diameter size of described cavity; And be equipped with wear-resistant coating at the lower surface of seaming chuck, the upper surface of lower cushion block and the cavity inner wall of die ontology.
2. the mould of bonded permanent magnet according to claim 1, it is characterized in that: described wear-resistant coating is hard wear-resistant coating.
3. the mould of bonded permanent magnet according to claim 2, it is characterized in that: described hard wear-resistant coating is that chromium nitride is filmed or tungsten carbide is filmed.
4. the mould of bonded permanent magnet according to claim 3, it is characterized in that: described thickness of filming is 1～10 nanometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478212 CN202752605U (en) | 2012-09-18 | 2012-09-18 | Forming mold of bonded permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220478212 CN202752605U (en) | 2012-09-18 | 2012-09-18 | Forming mold of bonded permanent magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202752605U true CN202752605U (en) | 2013-02-27 |
Family
ID=47731800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220478212 Expired - Fee Related CN202752605U (en) | 2012-09-18 | 2012-09-18 | Forming mold of bonded permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202752605U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368812A (en) * | 2014-11-28 | 2015-02-25 | 中核(天津)科技发展有限公司 | Pressing die for bonded neodymium-iron-boron magnetic body |
| CN106813958A (en) * | 2016-05-16 | 2017-06-09 | 中国辐射防护研究院 | It is a kind of for being compacted the porous die trial in the small-bore of swelling earth sample |
| CN113046688A (en) * | 2020-12-02 | 2021-06-29 | 湖北平安电工股份有限公司 | Surface treatment method for mica part hot-molding die |
-
2012
- 2012-09-18 CN CN 201220478212 patent/CN202752605U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104368812A (en) * | 2014-11-28 | 2015-02-25 | 中核(天津)科技发展有限公司 | Pressing die for bonded neodymium-iron-boron magnetic body |
| CN106813958A (en) * | 2016-05-16 | 2017-06-09 | 中国辐射防护研究院 | It is a kind of for being compacted the porous die trial in the small-bore of swelling earth sample |
| CN113046688A (en) * | 2020-12-02 | 2021-06-29 | 湖北平安电工股份有限公司 | Surface treatment method for mica part hot-molding die |
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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: 20130227 Termination date: 20150918 |
|
| EXPY | Termination of patent right or utility model |