利用数学模拟和小量试验方法减轻铸坯的中心疏松  

Reducing the Central Porosity of Billet by Mathematical Simulation and Small Quantity Test

作　　者：李伟[1] 岳锦绵 Li Wei;Yue Jinmian(Shanxi Taiyuan Iron and Steel Stainless Steel Co.,Ltd.,Taiyuan Shanxi 030003,China)

机构地区：[1]山西太钢不锈钢股份有限公司,山西太原030003

出　　处：《山西冶金》2024年第10期151-153,共3页Shanxi Metallurgy

摘　　要：对铁路车轮钢CL60进行模拟计算,发现过热度、二冷制度对凝固末端位置的影响不大,拉速对凝固末端位置的影响最大。通过采用低拉速与恒拉速、较弱二冷强度和适宜电磁搅拌强度的办法,较好地解决了铸坯的中心疏松和碳偏析问题。Through the simulation calculation of railway wheel steel CL60,it is found that the superheat and secondary cooling system have little effect on the solidification end position,and the pulling speed has the greatest effect on the solidification end position.By adopting the methods of low and constant pulling speed,weak secondary cooling strength and appropriate electromagnetic stirring strength,the problems of central porosity and carbon segregation of billet are better solved.

关 键 词：恒拉速 数学模拟 中心疏松 碳偏析 

分 类 号：TF777[冶金工程—钢铁冶金]