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METHOD OF MANUFACTURING FOR STAINLESS STEEL CONTAINING RARE EARTH ELEMENT

机译:含稀土元素的不锈钢制造方法

摘要

PROBLEM TO BE SOLVED: To prevent the clogging of a nozzle in continuous casting with certainty and to manufacture a high cleanliness austenitic stainless steel. ;SOLUTION: In the method of manufacturing for the stainless steel containing rare earth elements, Cr in a slag is reduced by Si and/or Al after oxidation refining in a refining furnace and finishing deoxidation is successively performed using Al, and further, REM addition is carried out in such a way that, in relation with the concentration of Al in the steel, the condition of 16.7×REM wt.% ≤Al≤0.5 wt.% is satisfied to suppress the formation of inclusions containing REM oxides.;COPYRIGHT: (C)2001,JPO
机译:要解决的问题:可靠地防止连续浇铸中喷嘴的堵塞,并制造高清洁度的奥氏体不锈钢。 ;解决方案:在制造包含稀土元素的不锈钢的方法中,炉渣中的Cr在精炼炉中进行氧化精炼后,通过Si和/或Al还原,并依次使用Al进行最终的脱氧,然后再添加REM。以相对于钢中Al的浓度满足16.7×REM重量%&Al; 0.5重量%的条件进行,以抑制包含REM氧化物的夹杂物的形成。 ;版权:(C)2001,日本特许厅

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