屈服强度550MPa级热轧卷板生产工艺及其组织性能的研究  

Study on Production Technology for Hot Rolled Coiled Sheet with Yield Strength of 550MPa and Its Structure and Performance

作　　者：侯华兴[1] 郭晓波[1] 李文儒[1] 沙孝春[2] 赵林[2] 鲁强[2] 

机构地区：[1]鞍钢集团技术中心 [2]鞍钢集团新钢铁公司

出　　处：《鞍钢技术》2002年第6期34-39,共6页Angang Technology

摘　　要：简要介绍了屈服强度大于 5 5 0 MPa级超低碳贝氏体钢热轧卷板成分及生产工艺 ,并进行了机理分析 ;重点阐明了其在鞍钢 1 780热轧机组的控轧控冷工艺制度 ,包括温度制度及压下制度 ,尤其是轧后加速冷却制度的优化过程 ,对试轧过程中的工艺参数及产品的组织和性能进行了分析研究 。The paper briefly introduces the composition of ultra-low carbon bainitic steel for hot rolled coiled sheet with yield strength of 550MPa and its production technology, analyzes the mechanism and mainly describes the controlled rolling and cooling technological schedule for 1780mm hot rolling mills, including the schedules of temperature and rolling, especially the optimizing process of accelerated cooling schedule after rolling. It also analyzes and studies the technological parameters, structure and performance of coiled sheet during test rolling and makes a reasonable technological schedule of controlled rolling and cooling for the steel.

关 键 词：屈服强度 热轧卷板 生产工艺 组织 性能 超低碳贝氏体钢 

分 类 号：TG335.5[金属学及工艺—金属压力加工]