42CrMoA钢表面夹渣原因分析与解决措施  

Reason Analysis and Solving Measures of the Surface Inclusion of Steel 42CrMoA

作　　者：丰年 

机构地区：[1]特钢事业部

出　　处：《莱钢科技》2012年第6期30-32,36,共4页Laigang Science & Technology

摘　　要：对BOF—LF—VD—CC工艺流程生产的42CrMoA合金结构钢连铸坯产生表面夹渣原因分析，结果表明，连铸表面夹渣可以通过合理使用结晶器保护渣，保持结晶器内液面稳定及中间包水口对中，稳定拉速等措施加以控制。Reason analysis on the surface inclusion in the continuous casting slab of 42CrMoA alloy struc- tural steel, produced by BOF-LF-VD-CC process the reasonable use of mould fluxes, keeping the centering, and stabilizing the tr, dlPd pulling speed, the flow, is carried out, and the results show that, through stabilization of liquid level in mould, holding the nozzle surface inclusionof continuous casting slab can be con trolled.

关 键 词：连铸坯表面夹渣保护渣性能 

分 类 号：TF777.3[冶金工程—钢铁冶金]