摘要
介绍了攀钢集团开发汽车结构用SAPH440热轧带钢的化学成分设计,冶炼、连铸和热轧工艺制订,以及实际试制钢板的化学成分、组织与性能。试制结果表明,通过降低钢中碳、硫含量,利用钙处理控制MnS夹杂物形态,并添加微量钛合金和控制卷取温度等措施,使SAPH440热轧钢板具有良好的冷成形性,冲压合格率高,性能波动小,生产成本低,现已应用于多家用户的汽车车轮、车架等结构件的制作。
The designed chemical composition and process parameters,the actual chemical composite,microstructure and mechanical property of SAPH440 hot-rolled strip in Panzhihua Steel Group Co.,Ltd.were introduced. The results showed that through decreasing C,S content,controlling MnS form,adding little Ti and controlling coiling temperature,SAPH440 hot-rolled sheet steel could achieve well cold formability,high pressing pass rate, little performance wave,low production cost.It has been used in making automobile wheel and frame at present.
出处
《轧钢》
北大核心
2011年第1期63-67,共5页
Steel Rolling
关键词
汽车结构件用热轧带钢
化学成分
生产工艺
冷成型性
生产成本
hot-rolled strip for automobile structure
chemical composition
production process
cold formability
production cost
