發(fā)布時間：2018-01-26 09:55

  本文關(guān)鍵詞： CrMo鋼 常規(guī)軋制工藝 控軋控冷工藝 終軋溫度 硬度　出處：《鍛壓技術(shù)》2017年01期 　論文類型：期刊論文

【摘要】：針對某軋鋼廠生產(chǎn)的Φ100 mm以下規(guī)格42Cr Mo鋼熱軋態(tài)硬度超標(biāo)現(xiàn)象,研究了常規(guī)軋制工藝和控軋控冷工藝,分析了不同工藝參數(shù)對42Cr Mo鋼金相組織與硬度的影響。通過優(yōu)化工藝參數(shù),將終軋溫度控制在830~850℃,軋后保溫罩冷卻速率控制在0.1~0.2℃·s-1,出保溫罩溫度控制在400~500℃。結(jié)果表明:采用常規(guī)軋制工藝,42Cr Mo鋼的硬度值普遍在290~330 HBW之間,金相組織主要為貝氏體;采用控軋控冷工藝,42Cr Mo鋼的硬度值可控制在220~260 HBW之間,金相組織為鐵素體與珠光體;通過優(yōu)化在線軋制工藝參數(shù),42Cr Mo鋼熱軋態(tài)硬度滿足了標(biāo)準(zhǔn)要求,降低了生產(chǎn)成本,提高了鋼材的市場競爭力。
[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，

本文編號：1465317