热连轧机组花纹辊花纹损伤成因分析及改进  

Cause analysis and improvement of roller pattern damage of hot continuous rolling mill

作　　者：王蕾[1] 饶静[1] 杨立庆[1] 吴健 Wang Lei;Rao Jing;Yang Liqing;Wu Jian(Anyang Iron and Steel Co.,Ltd.,Anyang 455004,China)

机构地区：[1]安阳钢铁股份有限公司第二炼轧厂,河南安阳455004 [2]安阳钢铁股份有限公司销售公司,河南安阳455004

出　　处：《金属制品》2020年第4期63-65,共3页Metal Products

摘　　要：1780 mm热连轧机组花纹板生产中出现花纹“崩豆”等问题。调查分析得出:花纹辊配辊方式不当,磨床无法探伤,弯辊力过大形成辊间接触应力破坏是造成花纹辊“崩豆”的主要原因。改进花纹辊配辊方式并对轧辊表面进行探伤,消除轧辊表面潜在缺陷,同时改进支承辊辊型,降低弯辊力,减小轧辊端部应力集中,可有效降低花纹辊“崩豆”。Problem of broken beans occurred in production of pattern plate in 1780 mm hot continuous rolling mill.The analysis shows that improper way of matching pattern roll,failure of grinding machine to detect flaws,and excessive bending force forming the contact stress between rolls are main reasons for broken beans of pattern roll.Improve pattern roll matching method and detect surface of roll to eliminate potential defects on roll surface,improve the roll shape of backup roll,reduce bending force,reduce stress concentration at the end of roll,can effectively reduce occurrence of pattern roll broken beans.

关 键 词：花纹辊 崩豆 探伤 辊型 

分 类 号：TG335.11[金属学及工艺—金属压力加工]