42CrMo钢轧制工艺优化

发布时间：2018-01-26 09:55

  本文关键词： CrMo钢 常规轧制工艺 控轧控冷工艺 终轧温度 硬度　出处：《锻压技术》2017年01期 　论文类型：期刊论文

【摘要】：针对某轧钢厂生产的Φ100 mm以下规格42Cr Mo钢热轧态硬度超标现象,研究了常规轧制工艺和控轧控冷工艺,分析了不同工艺参数对42Cr Mo钢金相组织与硬度的影响。通过优化工艺参数,将终轧温度控制在830~850℃,轧后保温罩冷却速率控制在0.1~0.2℃·s-1,出保温罩温度控制在400~500℃。结果表明:采用常规轧制工艺,42Cr Mo钢的硬度值普遍在290~330 HBW之间,金相组织主要为贝氏体;采用控轧控冷工艺,42Cr Mo钢的硬度值可控制在220~260 HBW之间,金相组织为铁素体与珠光体;通过优化在线轧制工艺参数,42Cr Mo钢热轧态硬度满足了标准要求,降低了生产成本,提高了钢材的市场竞争力。
[Abstract]:In view of the phenomenon that the hardness of 42CrMo steel under 桅 100 mm produced by a rolling mill exceeds the standard, the conventional rolling process and controlled rolling and controlled cooling process are studied. The effect of different process parameters on the microstructure and hardness of 42CrMo steel was analyzed. By optimizing the process parameters, the finishing rolling temperature was controlled at 830 鈩，

本文编号：1465317