滑轨用连退钢带HG400产品研发及工艺优化  

Product Research and Development and Process Optimization of Continuous Annealing Steel Strip HG400 for Slide Rail

作　　者：杨源远 刘毅 刘野 魏晓东 Yang Yuan-yuan;Liu Yi;Liu Ye;Wei Xiao-dong(Technical Center of Inner Mongolia Baotou Steel Union Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China;Inner Mongolia Baotou Steel Rare Earth Steel Plate Co.,Ltd.,Baotou 014010,Inner Mongolia Autonomous Region,China)

机构地区：[1]内蒙古包钢钢联股份有限公司技术中心,内蒙古包头014010 [2]内蒙古包钢稀土钢板材有限责任公司,内蒙古包头014010

出　　处：《包钢科技》2022年第5期43-46,共4页Science & Technology of Baotou Steel

摘　　要：根据滑轨用连退钢带HG400产品的技术要求进行成分体系设计,确定钢带热轧控轧、酸轧以及连续退火工艺参数,采用工业生产线生产的滑轨用连退钢带HG400产品力学性能满足技术要求,产品断后伸长率为21%~26%。针对滑轨用连退钢带HG400产品断后伸长率偏低的问题开展连续退火生产工艺优化研究,对连续退火温度及平整机延伸率进行了调整。退火工艺优化后的HG400连退钢带产品断后伸长率可稳定控制在31%左右。目前滑轨用连退钢带HG400产品稳定生产并广泛应用。The process parameters of hot rolling and controlled rolling, pickling-rolling and continuous annealing for steel strip are determined through the composition system design based on the technical requirements of continuous annealing steel strip HG400 for slide rail. The mechanical properties of the product produced with industrial production line could meet technical requirements and its elongation after fracture is 21%~26%. The study on optimizing the production process of continuous annealing is carried out aiming at the problem that elongation after fracture is lower as well as continuous annealing temperature and elongation of temper mill are adjusted. After the optimization, elongation after fracture of product could be stably controlled at about 31%. At present, the product is produced stably and applied widely.

关 键 词：汽车钢 滑轨 伸长率 显微组织 

分 类 号：TG142.14[一般工业技术—材料科学与工程]