连铸异型坯含Nb钢表面横裂原因分析及控制措施  

Cause Analysis and Control Measures of Transverse Cracks on the Surface of Beam Blank Continuous Casting of Nb Containing Steel

作　　者：汤寅波[1,2] 付振宇[1] 

机构地区：[1]马钢股份公司第三钢轧总厂,安徽马鞍山243000 [2]安徽工业大学冶金与资源学院,安徽马鞍山243000

出　　处：《安徽冶金科技职业学院学报》2010年第3期1-4,共4页Journal of Anhui Vocational College of Metallurgy and Technology

摘　　要：由于含Nb钢裂纹敏感性强,铸坯表面容易产生横裂纹,通过对马钢第三钢轧总厂异型坯含Nb钢连铸工艺进行分析,通过采取措施使异型坯的表面横裂纹得到了有效控制,降低了轧后废品率。Because the strong crack-sensitive of Nb containing steel,surface transverse crack prone.By analysis of CC processing of Nb containing steel in No.3 Steelworks of Ma＇anshan Iorn Steel Co.,Ltd.Since implementation of certain appropriate technical measures,Blank surface transverse cracks have been effectively controlled and Rejection rate after rolling was reduced.

关 键 词：异型坯 含铌钢 横裂纹 工艺优化 

分 类 号：TF777[冶金工程—钢铁冶金] TG1[金属学及工艺—金属学]