| 精轧控冷工艺对20CrMoH齿轮钢带状组织影响 |
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| 引用本文： | 李小龙,周敦世,周立新,程卫国,邹晖.精轧控冷工艺对20CrMoH齿轮钢带状组织影响[J].钢铁研究,2017,45(2). |
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| 作者姓名： | 李小龙 周敦世 周立新 程卫国 邹晖 |
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| 作者单位： | 1. 大冶特殊钢股份有限公司中棒厂,湖北黄石,435001;2. 大冶特殊钢股份有限公司高品质特殊钢湖北省重点实验室,湖北黄石,435001 |
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| 摘 要： | 为减轻20CrMoH齿轮钢带状组织,进行了Φ80mm棒材在精轧区的3种穿水冷却试验。结果表明:精轧前穿水冷却,轧制温度处在两相区轧制,带状组织级别为2.5~3.0级;精轧后以及精轧前、后进行穿水冷却,轧制温度处在奥氏体区轧制,带状组织级别为1.0~2.0级,尤其在奥氏体未再结晶区轧制时,带状组织级别为1.0~1.5级。
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| 关 键 词： | 齿轮钢 控冷工艺 带状组织 穿水冷却 |
Effect of controlled cooling process in finish rolling on banded structure of gear steel 20CrMoH |
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| LI Xiaolong,ZHOU Dunshi,ZHOU Lixin,CHENG Weiguo,ZOU Hui.Effect of controlled cooling process in finish rolling on banded structure of gear steel 20CrMoH[J].Research on Iron and Steel,2017,45(2). |
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| Authors: | LI Xiaolong ZHOU Dunshi ZHOU Lixin CHENG Weiguo ZOU Hui |
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| Abstract: | In order to reduce banded structure of gear steel 20CrMoH,three kinds of through-water cooling experiments on Φ80 mm bars were carried out in finish rolling.The results showed that in the process of through-water cooling before finish rolling,the finish rolling was in the two phase zone,with the banded structure level 2.5-3.0,while in the process of through-water cooling after finish rolling and the process of through-water cooling both before and after finish rolling,the finish rolling was in austenite phase zone,with the banded structure level 1.5-2.0.Especially when finish rolling was in austenite non-recrystallized zone,the banded structure level was 1.0-1.5. |
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| Keywords: | gear steel controlled cooling process banded structure through-water cooling |
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