Title:
【発明の名称】鉄損が低く良好に結合した部品用の強磁性粉末
Document Type and Number:
Japanese Patent JP2002508442
Kind Code:
A
Abstract:
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.
Inventors:
Bean, Glenn Elle.
Deresh, Rev
Hua, Zone
Rushmore, David S.
Deresh, Rev
Hua, Zone
Rushmore, David S.
Application Number:
JP2000538858A
Publication Date:
March 19, 2002
Filing Date:
December 07, 1998
Export Citation:
Assignee:
Materials Innovation, Incorporated
International Classes:
B22F1/16; B22F3/00; C22C32/00; C22C33/02; H01F1/11; H01F1/24; H01F1/33; H01F1/36; H01F41/02; H02K1/02; H02K1/22; (IPC1-7): B22F1/02; B22F3/00; H01F1/11; H01F1/36; H02K1/22
Attorney, Agent or Firm:
Takashima Hajime