微合金化钢连铸板坯角横裂纹的影响因素  

Factors Leading to Transverse Crack at Corner of Continuous Casting Micro-alloying Slab

作　　者：常桂华[1] 吕志升[1] 曹东[1] 修国涛[1] 吴世龙[2] 王向辉[2] 吴春杰[2] 

机构地区：[1]鞍钢股份有限公司技术中心 [2]鞍钢股份有限公司第二炼钢厂

出　　处：《鞍钢技术》2006年第6期25-28,共4页Angang Technology

摘　　要：通过对含铌、钒、钛微合金化钢连铸板坯的硫印数据进行统计分析，得出了角横裂纹的影响因素，提出了角横裂纹的控制措施，即硫含量应控制在0．004％以下，锰含量为上限，磷含量为0．007％～0．018％，过热度为10～30℃，拉速控制为1．1m／min，开发合适的二冷配水制度，提高铸机设备精度。Through statistics and analysis on sulfur print data of continuous casting micro-alloying slab with Nb, V and Ti, the factors leading to transverse corner cracks are obtained. The control measures are proposed, that is, S, Mn and P contents should be controlled at less than 0.004 %, upper limit value and between 0.007 % and 0.018 %, respectively, overheating degree is 10～30℃, drawing speed is 1.1m/min and suitable secondary cooling water distribution schedule and high device precision of caster are alto needed.

关 键 词：微合金化钢 连铸板坯 角横裂纹 

分 类 号：TF777.1[冶金工程—钢铁冶金]