摘要
为提高天铁集团炼钢厂3#连铸机的产量,将拉速由2.1～2.2m/min提高到2.4～2.6m/min,使铸坯中出现了大量缩孔。对缩孔缺陷进行了分析,查找出了产生原因,通过施行控制浇钢温度、优化比水量、稳定二冷水压、提高铸机对弧精度等措施,使铸坯缩孔问题得到了有效控制,提高了铸坯质量。
The casting speed of Caster 3 of Steel-making Plant, Tiantie Group was raised from 2.1～2.2 m/min to 2.4～2.6 m/min so as to increase production. However, a large amount of shrinkage presented in the billet. The defect was analyzed and causes were found. Measures were taken of controlling casting temperature, optimizing cooling intensity, stabilizing secondary cooling water pressure and improving curve alignment precision. The billet shrinkage was effectively controlled and product quality improved.
出处
《天津冶金》
CAS
2012年第3期9-10,63,共2页
Tianjin Metallurgy
关键词
方坯
缩孔
搭桥
柱状晶
控制
billet, porosity, bridging, columnar crystal, control
