发明名称 |
Method for preparing iron system soft magnetic sintered body |
摘要 |
An iron system soft magnetic sintered body is prepared by blending an iron powder with a powder of a metal or ferroalloy so as to give a desired chemical composition and subjecting the blend to mechanical alloying, thereby alloying at least a portion of the metal or ferroalloy with iron, followed by shaping and firing. Alternatively, the same is prepared by treating an iron system alloy powder of a desired chemical composition by a mechanical grinding process, followed by shaping and firing. Even when starting with relatively large mean particle size powder, the resulting sintered body has a high density and improved magnetic properties.
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申请公布号 |
US5443787(A) |
申请公布日期 |
1995.08.22 |
申请号 |
US19940274451 |
申请日期 |
1994.07.13 |
申请人 |
TDK CORPORATION |
发明人 |
MORI, TERUO;YAMAGUCHI, NORISHIGE;WAKAYAMA, KATSUHIKO |
分类号 |
C22C33/02;H01F1/22;(IPC1-7):B22F1/00;B22F3/12;B22F9/04 |
主分类号 |
C22C33/02 |
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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