高线粗轧1H机箱形孔型内圆角的选择与实践应用

Selection and Practical Application of Inner Round Corner of Box Pass in No.1 Horizontal Rough-Rolling Mill in High Speed Rolling Process of Wire Rod

分析水钢高线使用160 mm×160 mm×12000 mm钢坯原料轧制后,粗轧1H机轧件频繁出现挂丝,导致工艺故障增加及产品外观质量满足不了标准要求,考虑通过对1H机的箱形孔型内圆角重新选择解决此问题.

After a billet of 160 mm×160 mm×12000 mm is used as raw material for rolling,there are always ears on rolling pieces from No.1 horizontal rough-rolling mill,which leads to the problems that process faults increase and appearance quality of products can't meet the standard requirements.It is considered to reselect the inner round corner of box pass in No.1 horizontal rough-rolling mill to solve the problems.