发明名称 |
FERROMAGNETIC POWDER FOR LOW CORE LOSS, WELL-BONDED PARTS |
摘要 |
<p>A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150 DEG C. and permits adjacent particles to strongly bind together after compaction such that parts made from the ferromagnetic powder have a transverse rupture strength of about 8,000 to about 20,000 pounds/square inch before sintering. The coating includes from 2 to 4 parts of an oxide and one part of a chromate, molybdate, oxalate, phosphate, or tungstate. The coating may be substantially free of organic materials. The invention also includes a method of making the ferromagnetic powder, a method of making soft magnetic parts from the ferromagnetic powder, and soft magnetic parts made from the ferromagnetic powder.</p> |
申请公布号 |
EP1039998(A1) |
申请公布日期 |
2000.10.04 |
申请号 |
EP19980960801 |
申请日期 |
1998.12.07 |
申请人 |
MATERIALS INNOVATION INC. |
发明人 |
BEANE, GLENN, L.;DERESH, LEV;HUA, ZONG, LU;LASHMORE, DAVID, S. |
分类号 |
B22F1/02;B22F3/00;C22C32/00;C22C33/02;H01F1/11;H01F1/24;H01F1/33;H01F1/36;H01F41/02;H02K1/02;H02K1/22;(IPC1-7):B32B5/16;B22F1/00;G11B5/66 |
主分类号 |
B22F1/02 |
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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