厚板剪切缺陷分析及改善措施  

Analysis and improvement measures of shearing defects of heavy plates

作　　者：张家文 曹育盛[1] 俞慧[1] ZHANG Jiawen;CAO Yusheng;YU Hui(Heavy Plate Business Unit,Baoshan Iron&Steel Co.,Ltd.,Shanghai 201999,China)

机构地区：[1]宝山钢铁股份有限公司厚板事业部,上海201999

出　　处：《宝钢技术》2023年第3期71-75,共5页Baosteel Technology

摘　　要：剪切是厚板生产工序中非常重要的一环,剪切缺陷直接影响成品钢板质量。首先对滚切式剪切机剪切机理进行了简要说明,然后结合5 m厚板生产实际,分析了废边压入、塌边、错刀和毛刺压入4种主要缺陷产生原因。确定了影响缺陷的主要因素为剪刃间隙和钢板跑偏,并提出改进措施,通过试验验证效果良好,为提高厚板剪切质量提供相关参考。Shearing is a very important part in the production process of heavy plates.Shearing defects directly affect the quality of the finished steel plate.In this paper,the shearing mechanism of the rolling shear machine is briefly explained,and then combined with the production practice of the 5 m heavy plate,the causes of four kinds of defects such as waste edge pressing,turned-down edge,missed cutting line and burr pressing are analyzed.It is determined that the main factors affecting the defects are the knife gap and the running-off of the plate,and the improvement measures are put forward.The experimental results show that the effect is good,which provides a relevant reference for improving the shearing quality of heavy plates.

关 键 词：厚板 剪切缺陷 改善措施 

分 类 号：TG333.21[金属学及工艺—金属压力加工]