铸造半钢轧辊槽底断裂原因分析  

Cause Analysis of Groove Bottom Fracture of Cast Semisteel Roll

作　　者：张杰[1] 李红宇[1] 高玉章[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2期47-49,共3页Foundry Equipment & Technology

摘　　要：对断裂半钢轧辊进行成分分析、金相检测、辊身孔型处弯曲应力计算。结果表明,得出造成轧辊断裂的原因是因为孔型设计时安全系数过低,弯曲应力小于许有应力,建议提高轧辊报废直径尺寸。Through chemical composition analysis,metallographic examination on the fracture of semisteel roll in the roll body, pass bending stress calculation,the result showed the roller fracture was caused by the low safety coeffieientin the groove design,the bending stress less than the allowed stress.The diameter of roll scrap was proposed to increase.

关 键 词：半钢轧辊 弯曲应力 安全系数 许用应力 

分 类 号：TG333.17[金属学及工艺—金属压力加工]