发明名称 |
METHOD FOR MANUFACTURING OF INSULATED SOFT MAGNETIC METAL POWDER FORMED BODY |
摘要 |
A method for manufacturing bodies formed from insulated soft magnetic metal powder by forming an insulating film of an inorganic substance on the surface of particles of a soft magnetic metal powder, compacting and molding the powder, then carrying out a heat treatment to provide a body formed from insulated soft magnetic metal powder the method comprising: compacting and molding the powder; then magnetically annealing the powder at a high temperature above the Curie temperature for the soft magnetic metal powder and below the threshold temperature at which the insulating film is destroyed in a non-oxidizing atmosphere, such as a vacuum, inert gas, or the like; and then carrying out a further heat treatment at a temperature of from 400° C. to 700° C. in an oxidizing atmosphere, such as air, or the like. |
申请公布号 |
EP1899096(A1) |
申请公布日期 |
2008.03.19 |
申请号 |
EP20060780903 |
申请日期 |
2006.07.03 |
申请人 |
MITSUBISHI STEEL MFG. CO., LTD. |
发明人 |
UNOKI, KENICHI;NAGAI, KENICHI;YAMASAKI, SHOICHI;SODA, YUJI |
分类号 |
B22F3/10;B22F1/02;H01F1/153 |
主分类号 |
B22F3/10 |
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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