钙处理对20MnCr5钢中夹杂物变性的影响  

Effect of Calcium Treatment on Inclusion Modification in Steel 20MnCr5

作　　者：李林 LI Lin(Nanjing Iron&Steel Co.,Ltd.,Steel-making Plant 2#)

机构地区：[1]南京钢铁股份有限公司第二炼钢厂

出　　处：《南钢科技与管理》2022年第1期23-28,共6页NISCO Technology and Management

摘　　要：通过对20MnCr5齿轮钢在LF-RH-CCM过程中成分与夹杂物的检测,结合热力学分析研究了钢水成分对钙处理效果的影响。结果表明:20MnCr5钢在钙处理时,应将钢中的氧、硫、铝含量控制在合适的范围内,钙处理可以使夹杂物达到较好的变性效果,并得到低熔点夹杂物。By inspecting the composition and inclusions of gear steel 20MnCr5 in LF-RH-CCM process and thermodynamic analysis,the effect of liquid steel composition on calcium treatment was studied.The results show that the contents of oxygen,sulfur and aluminum in steel 20MnCr5 should be controlled in an appropriate range during calcium treatment.The calcium treatment can help inclusions achieve better denaturation effect and obtain low melting point inclusions.

关 键 词：齿轮钢 20MnCr5 钙处理 夹杂物 

分 类 号：TF7[冶金工程—钢铁冶金]