发明名称 POWDER OF STAINLESS STEEL AND METHOD FOR MAKING IT
摘要 FIELD: process for making powder of stainless steel with low content of oxygen and, preferably having no carbon. SUBSTANCE: method comprises steps of making melt stainless steel containing iron and carbon and at least 10% of chrome; controlling content of carbon in melt to value determined according to proposed carbon content after water atomization of melt; water atomizing of melt and annealing water atomized powder at temperature no less than 1120 C in reduction atmosphere containing controlled quantity of water. Invention also refers to water atomized powder containing 10 mas.% of chrome, carbon in range 0.2-0.7 mas.%, preferably 0.4 - 0.6 mas.% at mass relation oxygen/carbon approximately equal to 1 - 3, no more than 5% of impurities and to annealed powder prepared according to claimed method. EFFECT: powder with higher purity degree, with enhanced mechanical and physical properties produced at lowered electric energy consumption. 12 cl, 5 tbl
申请公布号 RU2195386(C2) 申请公布日期 2002.12.27
申请号 RU20000101007 申请日期 1998.06.17
申请人 KHEGANES AB 发明人 ARVIDSSON JOKHAN;TRJUGGMO AL'F
分类号 B22F9/08;B22F1/00;C22C33/02;C22C38/00;C22C38/50;(IPC1-7):B22F1/00 主分类号 B22F9/08
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