不锈钢连铸坯表面缺陷与保护渣性能的选择  

Surface defects on stainless steel billet and selection of mould flux properties

作　　者：王文学[1] 王雨[1] 迟景灏[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400044

出　　处：《连铸》2006年第6期28-31,共4页Continuous Casting

基　　金：国家自然科学基金;钢铁联合基金资助项目(50274078)

摘　　要：从不锈钢的组成、凝固特点以及高温热性能和力学性能等方面具体分析不锈钢铸坯表面凹陷、裂纹、夹渣以及不易除掉的深振痕等缺陷产生的机理和特征。以304、2Cr13等不锈钢为例,提出通过控制保护渣的碱度、黏度、熔化温度、熔化速度等物化性能改善不锈钢铸坯表面缺陷的原则和措施。Formation mechanism and characters of major defects on stainless steel billet such as depression , crack, slag inclusion and deep oscillation mark , not easy to be removed, are analyzed considering steel composition, solidification character, thermal and mechanical properties. Taking 304 and 2Cr13 as example, measures against surface defects are put forward to select mould flux properties such as viscosity ,basicity, melting temperature ,melting rate and so on.

关 键 词：保护渣性能 表面缺陷 不锈钢 连铸坯 2Cr13 表面凹陷 力学性能 凝固特点 

分 类 号：TF777[冶金工程—钢铁冶金]