弹簧钢盘条表面热划伤缺陷原因分析及改进措施  

Causes analysis of hot scratch defects on the surface of spring steel wire rod and its countermeasures

作　　者：宫辉[1] 彭进明 葛晴晴 GONG Hui;PENG Jinming;GE Qingqing(Technical Quality and Product Service Department,Special Steel Co.,Masteel Co.,Ltd.,Baowu Steel Group,Maanshan 243000,China;High Speed Wire Rod Mill,Special Steel Co.,Masteel Co.,Ltd.,Baowu Steel Group,Maanshan 243000,China)

机构地区：[1]宝武钢铁集团马鞍山钢铁股份有限公司特钢公司技术质量与产品服务部,安徽马鞍山243000 [2]宝武钢铁集团马鞍山钢铁股份有限公司特钢公司高线分厂,安徽马鞍山243000

出　　处：《轧钢》2021年第4期117-120,共4页Steel Rolling

摘　　要：针对马钢特钢高线生产弹簧钢盘条表面易出现划伤缺陷的问题,介绍了该产线的工艺路径及其弯道滑动导槽、滑动导管多的特点,为此,分析了滑动导槽、转辙器、活套台、夹送辊、吐丝管、轧制温度、钢种对弹簧钢盘条表面热划伤缺陷的影响,并提出了改变在线滑动导槽、导管、活套台等辅助设备和材质,将轧件与设备之间的滑动摩擦改为滚动摩擦的措施,非常有效地解决了盘条表面的热划伤问题,同时延长了恢复段各种导槽和活套台的使用寿命,降低了导槽备件库存和消耗,降低了生产成本。In view of the problem that the surface is easily scratched of spring steel wire rod produced by High-speed Wire Rod Mill of Masteel,the process route of the production line and the characteristics of many curved sliding guide grooves and sliding pipes were introduced.For this reason,the influence of the sliding guide groove,switch,looper table,pinch roll,spinning tube,rolling temperature,steel grade on the surface hot scratch defects of spring steel wire rod was analyzed,and the measures to change the online sliding guide groove,pipe,looper table and other auxiliary equipment and materials,and change the sliding friction between the piece and the equipment to rolling friction.Based on these measures,the problem of hot scratches on the surface of the wire rod was effectively resolved.At the same time,the service life of various guide grooves and looper tables in the recovery section was prolonged,and the inventory and consumption of guide groove spare parts were reduced,and the production cost was reduced.

关 键 词：弹簧钢 盘条 热划伤 滑动导槽 活套台 夹送辊 吐丝管 轧制温度 摩擦 改造 

分 类 号：TG335[金属学及工艺—金属压力加工]