汽车用低碳齿轮钢的LF-VD脱氧工艺
SPECIAL STEEL（2005）
Abstract
分析和研究了105炉SCM318H、SCM322H、SCM420K-C、SCM822H、SCr420K等汽车用低碳齿轮钢的20 t LF-VD精炼终渣碱度、终Al含量和真空时间对钢中氧含量的影响.实践操作结果表明,采用白渣操作,控制终渣碱度不低于3,终Al含量≥0.22%、真空处理时间不低于25 min,可使低碳齿轮钢的氧含量稳定地≤15×10-6,平均氧含量为11.58×10-6.
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