St37-2G冷轧板冲压成形性能控制

来源期刊：钢铁钒钛2010年第4期

论文作者：段向东

文章页码：33 - 38

关键词：冷轧板； St37-2G； 碳素结构钢； 冲压成形性能； 塑性应变比； 应变硬化指数

Key words：cold-rolled steel sheet； St37-2G； carbon structural steel； stamping properties； value of plastic strain ratio； strain hardening exponent

摘    要：针对罩式退火生产工艺特点,系统研究了化学成分、冷轧压下率和退火工艺对St37-2G冷轧板组织和性能的影响,讨论了St37-2G冷轧钢塑性应变比的控制方法,提出了生产高塑性应变比加权平均值(r_m)St37-2G冷轧板的工业技术方案。工业生产的St37-2G冷轧钢板具有优良的冲压成形性能。

Abstract: According to the characteristics of cover annealing process,effects of chemical compositions,cold rolled reduction and annealing process on the microstructure and properteis of the St37-2G coldrolled steel sheet were investigated sysmatically.The controlling method of the plastic strain ratio of the steel was discussed and a technical plan to produce St37-2G coldrolled steel sheet with weighted average value of high plastic strain ratio(r_m) was put forward.The industrially-produced St37-2G coldrolled steel sheet exhibited excellent stamping properties.