发明名称 Method for Producing Iron Powder Respectively Microalloyed Steel Powder Mainly for Metallurgical Applications and Method for Producing Thereof
摘要 A method for manufacturing of iron- respectively micro-alloyed steel powders, starting from fluffy spray roasted iron oxides exhibiting a specific surface area in excess of 2.0 m<SUP>2</SUP>/g and residual chloride contents over 440 ppm Cl', decrease the chloride content in two steps to less than 100 ppm, the specific surface area (BET) of to a pre-selected value of less than 10.0 m<SUP>2</SUP>/g, preferably between 0.1 and 2.0 m<SUP>2</SUP>/g and reduce the pre-sintered granules exhibiting a bulk density in excess of 1.200 g/dm<SUP>3</SUP>.
申请公布号 US2008175740(A1) 申请公布日期 2008.07.24
申请号 US20070949283 申请日期 2007.12.03
申请人 DR. MICHAEL J. RUTHNER 发明人 RUTHNER MICHAEL J.
分类号 B22F9/22;C22C33/00 主分类号 B22F9/22
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