连续退火生产线出口辊印产生原因及对策  

Causes and Countermeasures of Roll Marks at the Outlet of Continuous Annealing Line

作　　者：廖加宝 赵宗楠 刘文亮 LIAO Jia-bao;ZHAO Zong-nan;LIU Wen-liang(Guangzhou JFE Steel Plate Co.,Ltd., Guangzhou, 510000, P.R. China)

机构地区：[1]广州JFE钢板有限公司,广州510000

出　　处：《南方金属》2022年第2期50-52,60,共4页Southern Metals

摘　　要：连续退火生产线在生产汽车外板期间,因平整、剪边、表面检查等因素导致出口平整机后的辊系粘附异物,出现辊印的缺陷,影响产品一次合格率。为了控制此类缺陷,对辊印发生规律、造成辊印的异物来源进行分析,并结合连退产线生产实际情况,对辊系异物的来源进行控制。通过对平整后辊系刮刀的材质、使用时机、与辊系之间的间隙不断调整优化等,解决了平整后辊印问题,提升了产品品质。The continuous annealing line of Guangzhou JFE Steel Plate Co.,Ltd.(hereinafter referred to as the continuous annealing line)mainly produces high-grade inner and outer plates for Japanese automobiles.During the production of automobile outer plates,foreign matters adhere to the roll system after the exit of the temper mill due to factors such as leveling,trimming and surface inspection,which is easy to show defects of roll marks,affecting the first-time qualification rate of products and customers’satisfaction.In order to control such defects,the occurrence law of roll marks and the source of foreign matter causing roll marks are analyzed.Combined with the actual production situation of continuous annealing line,the source of foreign matters in roll system is controlled.The problem of roll marks after leveling is solved by continuously adjusting and optimizing the material of roll system scraper,the service time of scraper and the gap between scraper and roll system,which improves product quality.

关 键 词：连续退火生产线 辊印 刮刀 

分 类 号：TG335.56[金属学及工艺—金属压力加工]