发明名称 |
FERROMAGNETIC POWER FOR LOW CORE LOSS, WELL-BONDED PARTS, PARTS MADE THEREFROM AND METHODS FOR PRODUCING SAME |
摘要 |
A ferromagnetic powder comprising ferromagnetic particles coated with a material that does not degrade at temperatures above 150° 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.
|
申请公布号 |
US2002014181(A1) |
申请公布日期 |
2002.02.07 |
申请号 |
US19980183080 |
申请日期 |
1998.10.30 |
申请人 |
LASHMORE DAVID S.;BEANE GLENN L.;DERESH LEV;HUA ZONGLU |
发明人 |
LASHMORE DAVID S.;BEANE GLENN L.;DERESH LEV;HUA ZONGLU |
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):C04B9/02;C04B35/64 |
主分类号 |
B22F1/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|