NON-MAGNETIC STEEL PRODUCT AND POWDER METALLURGY MANUFACTURING METHOD THEREFOR

WIPO Patent Application WO/2018/053940

A1

A non-magnetic steel product and a powder metallurgy manufacturing method therefor. The powder metallurgy manufacturing method comprises the following steps: preparing an Fe-Mn pre-alloyed powder, the Fe-Mn pre-alloyed powder comprising the following components in percentage by weight: Mn 20-50%, C 0.2-0.6%, Si 0.5-1.2%, S ≤ 0.05%, P ≤ 0.1%, O ≤ 1.15%, with the remainder being Fe; adding another alloy powder and a binder to the Fe-Mn pre-alloyed powder, and mixing and molding to obtain a billet; and sintering the billet to obtain the non-magnetic steel product. The non-magnetic steel product produced by this method features stable size, high density, and good durability, and has a simple manufacturing method and low manufacturing cost.

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ZHU QUANLI (CN)
XIAO ZHIYU (CN)
CHEN JIAJIAN (CN)
MA CHAO (CN)
WU YUANBIAO (CN)
LIU JUN (CN)
PAN YONGHAN (CN)

PCT/CN2016/108279

March 29, 2018

December 01, 2016

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GUANGDONG YUEHAI HUAJIN TECH CO LTD (CN)

B22F1/10; B22F3/02; B22F3/10; C22C22/00; C22C38/04

CN103691955A	2014-04-02
CN103509985A	2014-01-15
CN101733400A	2010-06-16
CN102528040A	2012-07-04
CN105463291A	2016-04-06
JP2013047378A	2013-03-07

ADVANCE CHINA IP LAW OFFICE (CN)

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