| Q345E薄规格钢板低温冲击功稳定性研究与控制 |
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| 引用本文： | 陈永南,殷延涛.Q345E薄规格钢板低温冲击功稳定性研究与控制[J].轧钢,2017,34(4):75-77. |
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| 作者姓名： | 陈永南 殷延涛 |
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| 作者单位： | 山东钢铁股份有限公司莱芜分公司宽厚板事业部，山东莱芜271104 |
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| 摘 要： | 针对Q345E低合金结构钢板低温冲击性能的影响因素进行了分析和研究，结果表明：钢板内部晶粒粗大和钢板残余应力集中是低温冲击性能不合格的主要原因。通过现场工艺和检验流程的优化，改善了Q345E钢板的低温冲击韧性，提高了产品合格率。
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| 关 键 词： | Q345E钢板 控制轧制 低温韧性 |
| 收稿时间： | 2016-09-01 |
Cause analysis and control measures of low temperature impact disqualification of thin gauge Q345E plate |
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| CHEN Yong-nan,YIN Yan-tao.Cause analysis and control measures of low temperature impact disqualification of thin gauge Q345E plate[J].Steel Rolling,2017,34(4):75-77. |
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| Authors: | CHEN Yong-nan YIN Yan-tao |
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| Affiliation: | Heavy Plate Dept.,Laiwu Branch,Shandong Iron & Steel Co.,Ltd.,Laiwu 271104,China |
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| Abstract: | The influencing factors on low temperature impact property of thin gauge Q345E plate were analyzed.The result show that the bigger grains and residual stress concentration are the main causes of low temperature impact property disqualification.By means of composition and production process optimization,the low temperature impact toughness and product qualification rate are improved. |
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| Keywords: | Q345E Steel plate Controlled rolling Low-temperature toughness |
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