发明名称 |
Hot pressed magnets formed from anisotropic powders |
摘要 |
A method is provided for forming a high energy product, anisotropic, hot pressed iron-rare earth metal permanent magnet without the requirement for magnetic alignment during pressing or additional hot working steps. The method of this invention includes providing a quantity of anisotropic iron-rare earth metal particles and hot pressing the particles so as to form a substantially anisotropic permanent magnet. The pressed permanent magnet of this invention permits a greater variety of shapes as compared to conventional hot worked anisotropic permanent magnets. As a result, the magnetic properties and shape of the permanent magnet of this invention can be tailored to meet the particular needs of a given application.
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申请公布号 |
US5352301(A) |
申请公布日期 |
1994.10.04 |
申请号 |
US19920979030 |
申请日期 |
1992.11.20 |
申请人 |
GENERAL MOTORS CORPORATION |
发明人 |
PANCHANATHAN, VISWANATHAN;CROAT, JOHN J. |
分类号 |
B22F3/14;C22C33/02;H01F1/057;H01F1/08;H01F41/02;(IPC1-7):H01F41/02 |
主分类号 |
B22F3/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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