大宽厚比薄规格镀锌家电板生产关键技术与质量控制  

Key Technology and Quality Control for Production of Galvanized Appli⁃ance Plates with High Width-thickness Ratio and Thin Gauge

作　　者：左岳 刘劼[1] 陈钟 ZUO Yue;LIU Jie;CHEN Zhong(Cold Rolling Mill of Maanshan Iron and Steel Co.,Ltd.,Maanshan,Anhui 243000,China)

机构地区：[1]马鞍山钢铁股份有限公司冷轧总厂,安徽马鞍山243000

出　　处：《冶金动力》2022年第2期17-21,41,共6页Metallurgical Power

摘　　要：针对在大型立式连续退火炉镀锌线上生产大宽厚比薄规格镀锌家电板产品涉及的重难点工艺技术进行工艺改进,主要涉及镀锌工序中的来料质量检查、开卷工序优化、退火炉加热温度、热工工艺与张力优化、锌鼻子露点改造、薄规格厚镀层边部增厚缺陷的气刀工艺参数优化、光整区域张力优化与烘干效果改进、卷取张力优化、下线打捆方式优化等,实现生产线稳定运行,改善产品表面质量,为企业后续大批量生产薄宽规格镀锌家电面板提供一些参考。The process improvement is aimed at the important and difficult process technologies involved in the production of galvanized appliance plates with high width-thick⁃ness ratio and thin gauge on a large vertical continuous annealing furnace galvanizing line,mainly involving incoming material quality inspection,uncoiling process optimization,anneal⁃ing furnace heating temperature,thermal process and tension optimization,dew point transfor⁃mation of zinc in snout,optimization of air knife process parameters for edge thickening de⁃fects in thin gauge and thick coating,tension optimization and drying effect improvement in the finishing area,coiling tension optimization,optimization of off-line packing method,etc.,to achieve stable operation of the production line,improve product surface quality,and pro⁃vide some reference for the subsequent mass production of thin-wide gauge galvanized appli⁃ance plates.

关 键 词：热镀锌 薄规格 边部增厚 瓢曲 

分 类 号：TG178[金属学及工艺—金属表面处理]