Q460C含铌微合金化钢角部横向裂纹的控制  

Control of Transverse Crack at Conner of Q460C Nb Steel Slab

作　　者：王海江[1] 

机构地区：[1]山西新临钢钢铁有限公司炼钢厂,山西临汾041000

出　　处：《连铸》2010年第1期38-41,共4页Continuous Casting

摘　　要：山西新临钢钢铁有限公司在浇注含铌微合金化钢中出现角部横向裂纹,成为连铸亟待解决的问题。研究表明:关键要系统地测量研究铸坯表面温度。临钢在Q460C钢生产过程中将铸坯表面温度提到1 020℃以上,有效地控制了铸坯角部裂纹的出现。Transverse cracks at corner of slabs of Nb microssloyed steel has been a serious problem in continuous casting of Sanxi Xinlingang Iron and Steel Co.,Ltd..It is important to measure surface temperature of continuous casting slabs systematically with a device developed by the author.Surface temperature of the continuous casting slabs at Xinlingang Steel was raised to higher than 1020℃ to avoided occurrence of transverse crack at the corner of the slab of Q460C steel.

关 键 词：连铸 含铌钢 高温延塑性 角横裂纹 

分 类 号：TF777[冶金工程—钢铁冶金]