中厚板横裂形貌压痕的分析与控制  

THE ANALYSIS AND CONTROL OF CROSS CRACKS AND PRESSING MARKS ON MEDIUM & HEAVY PLATES

作　　者：吴海波[1] 王国伟[1] 王亚[1] 范志永[1] 李杰武[1] 

机构地区：[1]安阳钢铁集团公司,河南安阳455004

出　　处：《冶金丛刊》2012年第3期9-11,共3页Metallurgical Collections

摘　　要：对钢板表面由于轧辊剥落形成的疑似横裂压痕缺陷进行宏观观察和微观分析。通过改善轧辊的管理制度和优化轧制工艺,加强对轧辊冷却喷嘴的管理,确保轧辊的温度控制在正常范围之内。加强轧制润滑、减少轧辊的磨损、降低轧制力及轧制扭矩、缓解轧辊的热疲劳、改善轧制时的应力状态,可大大降低中厚板疑似横裂压痕缺陷的发生。We carry out visual observation and micro analysis on cross cracks and pressing marks on plates＇ surface due to peeling off of rolls. Through improving the rolls management system and optimizing rolling process as well as strengthening management of cooling spray nozzles for rolls, rolls temperature can be controlled within normal range. By means of strengthening rolling lubrication, reducing rolls wearing, lowering rolling force and twisting torque, alleviating rolls fatigue and improving rolling stress situation, we can considerably lower the happening of cross cracks and pressing marks on plates.

关 键 词：中厚板 横裂压痕 控制工艺 

分 类 号：TG335.5[金属学及工艺—金属压力加工]