中厚板轧机工作辊热裂纹原因分析及处理办法
중후판알궤공작곤열렬문원인분석급처리판법
Causes Analysis and Preventive Measures of Thermal Cracking on Work Roll of Medium Plate Mill
  • 万方数据
    宽厚板 관후판
    Wide and Heavy Plate
    2015年 5期 35-37 ,共3页

    秦坤%田亚强%宋进英%尹绍江%邬早勤%侯蕾

    진곤%전아강%송진영%윤소강%오조근%후뢰

    龟裂%力矩%卡钢%工作层 龜裂%力矩%卡鋼%工作層
    구렬%력구%잡강%공작층
    Chap%Torque%Plate jamming%Work layer
    唐山中厚板公司通过对工作层出现热裂纹的轧机工作辊进行硬度和金相组织分析，判断造成此类缺陷的原因主要是轧机力矩无法满足轧制变形需要。通过减小压下量和投用润滑等措施杜绝了此类现象的再次发生。
    당산중후판공사통과대공작층출현열렬문적알궤공작곤진행경도화금상조직분석，판단조성차류결함적원인주요시알궤력구무법만족알제변형수요。통과감소압하량화투용윤활등조시두절료차류현상적재차발생。
    By performing hardness and microstructure analysis on plate mill work roll with work layer thermal cracks,Tangshan Medium Plate Co. estimates that the thermal cracks are mainly caused by the mill torque which can-not satisfy the demand of rolling deformation. Such phenomenon can be prevented by taking measures of decreasing the draft and applying lubrication.
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