TS21不锈钢板坯纵向凹陷裂纹分析及工艺改进  

Technology Improvement and Analysis for Longitudinal Concave Crack in TS21 Stainless Steel Slab

作　　者：王俊海[1] WANG Junhai(Shandong Taishan Steel Group Co.,Ltd.,Jinan 271100,China)

机构地区：[1]山东泰山钢铁集团有限公司,山东济南271100

出　　处：《山东冶金》2020年第2期1-3,共3页Shandong Metallurgy

摘　　要：采用国产不锈钢板坯连铸机生产TS21不锈钢,板坯存在纵向凹陷以及微裂纹缺陷,在分析其产生原因的基础上,提出增大保护渣的粘度、熔点和二元碱度及优化浸入式水口尺寸及水口插入深度等改进措施,通过试验并在生产中应用,效果明显。There were longitudinal sinking and micro cracks in TS21 stainless steel slab in the procedure of continues casting by using domestic machine.Based on the analysis of the productive process,we took some measures,such as increase in viscosity of covering slag,melting point and binary basicity as well as size and inserted depth optimization in submerged nozzle,and good results through experimentation and application in industrial manufacture were obtained.

关 键 词：奥氏体不锈钢 不锈钢板坯 纵向凹陷 裂纹 

分 类 号：TF777.1[冶金工程—钢铁冶金]