Method of controlling the remanent induction of a sintered magne

Details Method of controlling the remanent induction of a sintered magne Method of controlling the remanent induction of a sintered magne

1993-01-06

1994-02-22

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Consolidation of powder prior to sintering

419 39, 419 44, 419 53, 419 54, 148103, 148513, B22H 316, H01F 108

Patent

active

052884546

ABSTRACT:
A method for controlling the remanance of a sintered magnet by varying the time when the orienting field is applied during cold compression. The method comprises obtaining powders of an appropriate particle size, compressing the powders in an oriented field, sintering, heat treating, machining and magnetizing to technical saturation. The cold compressing in an orienting field takes place at a precompression rate of more than 15% before the orienting field is applied. The method applies to magnets of all shapes which must have magnetic induction well defined in modulus and in direction, particularly annular magnets for traveling wave tubes.

REFERENCES:
patent: 3530551 (1970-09-01), Haes et al.
patent: 4734253 (1988-03-01), Sato et al.
patent: 4793874 (1988-12-01), Mizoguchi et al.
patent: 4990306 (1991-02-01), Ohashi
patent: 5015306 (1992-05-01), Ghandehari
patent: 5057165 (1991-10-01), Nagata et al.
patent: 5080731 (1992-01-01), Tabaru et al.
patent: 5178691 (1993-01-01), Yamashita et al.
patent: 5201963 (1993-04-01), Mukai et al.
Patent Abstracts of Japan, vol. 13, No. 14 (M-784) Jan. 13, 1989 JP-63/227701, Sep. 22, 1988.
Chemical Abstracts, vol. 89, No. 2, Jul. 1978, No. 15869b, Sasaki et al. p. 640, col. 2.

Affiliated with

Also associated with

Rating

Method of controlling the remanent induction of a sintered magne does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of controlling the remanent induction of a sintered magne, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of controlling the remanent induction of a sintered magne will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-169111