S355J2板带表裂的分析与改善  

作　　者：王刚[1] 王学伦[2] 苏富国[1] 

机构地区：[1]日照钢铁有限公司质量检查部,山东日照176800 [2]日照钢铁有限公司技术中心,山东日照276800

出　　处：《民营科技》2010年第7期32-32,33,共2页

摘　　要：通过对缺陷钢卷理化检验结果的分析以及生产对比试验,指出连铸坯的角部横向裂纹是板带发生表裂的直接原因。并由此分析了板坯角部横向裂纹产生的主要原因。根据实际工艺条件,采取针对性的改善措施后,板卷表裂缺陷得以有效控制。The side-longitudinal crack specimens of S355J2 have been made an analysis by metallurgy microscope and SEM ,with that an industry trial has been made in the present work. The results indicate that the edge crack on the slab directly cause the side-longitudinal crack of steel strip. Furthermore, this paper also analyses the significant reason for the edge crack. According to the steel-making equipment and actual technologic condition, a special measure has been taken to improve the continuous casting slab quality.

关 键 词：板带表裂 角裂 二冷水 保护渣 

分 类 号：TS272.7[农业科学—茶叶生产加工]