论文部分内容阅读
通过系统的实验室研究、中试工场热轧试验和工业生产热轧试验,成功实现了热连轧细晶粒系列C-Mn钢的工业化生产。利用变形诱导铁素体相变(DIFT)机制和变形后快速冷却工艺,在w([Mn])为0.2%～0.7%的低碳(w([C])为0.13%～0.17%)钢中获得了细晶粒多边形铁素体(PF)+珠光体(P)+贝氏体(B)组织。使用奥氏体未再结晶区终轧和快速冷却工艺路线在高锰钢(w([C])为0.13%～0.17%,w([Mn])为1.5%)中得到了PF+B组织。在1450mm热带钢连轧生产线上,批量生产出厚度4.0～5.5mm细晶粒热轧板卷。
Through systematic laboratory research, hot rolling test in pilot plant and hot rolling test in industrial production, the industrial production of C-Mn steel in hot rolling and fine grain series has been successfully realized. Low-carbon (w ([C]) 0.13% ~ 0.17%) steel with w ([Mn]) of 0.2% ~ 0.7% was obtained by using the deformation induced ferrite transformation (DIFT) A fine grain polygonal ferrite (PF) + pearlite (P) + bainite (B) texture was obtained. Finishing and rapid cooling with austenite non-recrystallization zone The PF + B texture was obtained in high manganese steel (w ([C]) of 0.13% -0.17% and w ([Mn] . In 1450mm hot strip rolling production line, mass production of 4.0 ~ 5.5mm thickness of fine grain hot-rolled coil.