冶金设备
冶金設備
야금설비
METALLURGICAL EQUIPMENT
2014年
5期
31-34,52
,共5页
孔繁博%李建设%缪明军%黄建民
孔繁博%李建設%繆明軍%黃建民
공번박%리건설%무명군%황건민
工作辊%热凸度%冷却方式%轮廓曲线
工作輥%熱凸度%冷卻方式%輪廓麯線
공작곤%열철도%냉각방식%륜곽곡선
Work roll%Thermal crown%Cooling way%Contour curve
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。
熱軋精軋機換輥、軋製中斷、軋製節奏明顯變化等工藝條件下，容易齣現較大偏差，導緻軋製不穩定、闆形有質量缺陷等問題。對首鋼某熱軋1580生產線工作輥冷卻方式進行改造，由輥身均勻冷卻方式改為中段集中冷卻方式，以便降低工作輥中部溫度、減小中部與耑部的溫差，從而穫得較好的工作輥熱凸度輪廓麯線，軋製齣闆形和錶麵質量良好的帶鋼產品。
열알정알궤환곤、알제중단、알제절주명현변화등공예조건하，용역출현교대편차，도치알제불은정、판형유질량결함등문제。대수강모열알1580생산선공작곤냉각방식진행개조，유곤신균균냉각방식개위중단집중냉각방식，이편강저공작곤중부온도、감소중부여단부적온차，종이획득교호적공작곤열철도륜곽곡선，알제출판형화표면질량량호적대강산품。
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.
