高碳合金半钢辊环端面裂纹及夹渣缺陷的形成与防止  

Formation and Prevention of Crack and Slag Inclusion Defects in High Carbon Alloy Semi-steel Roll Ring

作　　者：张杰[1] 

机构地区：[1]唐山钢铁集团重型机械装备有限公司,河北唐山063000

出　　处：《铸造设备与工艺》2017年第6期37-39,共3页Foundry Equipment & Technology

摘　　要：高碳合金半钢辊环广泛应用于型钢及轨梁轧机的万能机架,生产中出现的端面裂纹、夹渣缺陷是造成辊环报废的主要原因。通过对辊环结合层、硬度、金相及生产过程等进行分析,得出造成端面裂纹、夹渣的主要原因是:辊环芯部钢水渗透入外层钢水与端盖之间的缝隙,两种钢水混熔加之浇注料高温强度低造成粘料,芯部收缩受阻产生裂纹、夹渣。High carbon alloy semi-steel roll collar is widely applied in the universal frame of rail-beam mill for shape steel and rail-beam.The surface cracks and slag inclusion defects are the main reason to cause the roller ring discarded.h was found that the molten steel in the core penetrated into the gap between the outer layer of molten steel and the end cover.The mixed molten steel and the low castable high strength of sticky material caused shrinkage cracks and slag inclusion.

关 键 词：型钢轧机 轨梁轧机 高碳合金半钢辊环 裂纹 夹渣 浇注料 

分 类 号：TG333[金属学及工艺—金属压力加工]