Method for preparing iron system soft magnetic sintered body

Details Method for preparing iron system soft magnetic sintered body Method for preparing iron system soft magnetic sintered body

1994-07-13

1995-08-22

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Powder pretreatment

419 10, 419 38, 419 53, 419 58, B22F 100, B22F 312, B22F 904

Patent

active

054437873

ABSTRACT:
An iron system soft magnetic sintered body is prepared by blending an iron powder with a powder of a metal or ferroalloy so as to give a desired chemical composition and subjecting the blend to mechanical alloying, thereby alloying at least a portion of the metal or ferroalloy with iron, followed by shaping and firing. Alternatively, the same is prepared by treating an iron system alloy powder of a desired chemical composition by a mechanical grinding process, followed by shaping and firing. Even when starting with relatively large mean particle size powder, the resulting sintered body has a high density and improved magnetic properties.

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patent: 5284615 (1992-02-01), Ueda et al.

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