某热轧1580生产线工作辊热凸度分析研究  

Work Roll Thermal Crown Analysis of the1580mm Hot Rolling Production Line

作　　者：孔繁博 李建设 缪明军 黄建民 

机构地区：[1]北京首钢总公司设备部,北京100041

出　　处：《冶金设备》2014年第5期31-34,52,共5页Metallurgical Equipment

摘　　要：热轧精轧机换辊、轧制中断、轧制节奏明显变化等工艺条件下,容易出现较大偏差,导致轧制不稳定、板形有质量缺陷等问题。对首钢某热轧1580生产线工作辊冷却方式进行改造,由辊身均匀冷却方式改为中段集中冷却方式,以便降低工作辊中部温度、减小中部与端部的温差,从而获得较好的工作辊热凸度轮廓曲线,轧制出板形和表面质量良好的带钢产品。The hot rolling finishing mill changing rolls, interruption of rolling and rolling rhythm changing process conditions have a bigger deviation, lead to instability of rolling and some trip shape quality defects, etc.Now the work roll cooling way of the Shougang 1580mm hot rolling production line would be corrected from a roll uniform cooling way to a middle centralized cooling way.In order to decrease the work roll′s temperature in the middle, and reduce the difference between the middle and end′s temperature.This method had gained a better work roll thermal crown and a contour curve.The good flatness and surface quality of rolled strip steel products of 1580mm hot rolling were achieved in Shougang.

关 键 词：工作辊 热凸度 冷却方式 轮廓曲线 

分 类 号：TG333.17[金属学及工艺—金属压力加工]