| 碳含量和控冷工艺对盘条ER70S-6性能及组织的影响 |
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| 引用本文： | 刘吉斌,胡伦骥,王玉涛,缪凯,肖晓华.碳含量和控冷工艺对盘条ER70S-6性能及组织的影响[J].钢铁,2002,37(9):43-46. |
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| 作者姓名： | 刘吉斌 胡伦骥 王玉涛 缪凯 肖晓华 |
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| 作者单位： | 1. 华中科技大学
2. 武汉钢铁(集团)公司 |
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| 摘 要： | 对3炉不同碳含量的焊接用钢盘条ER70S-6控冷工艺进行了研究，发现提高吐丝温度虽可以降低盘条的强度，但盘条中易出现混晶组织，碳含量小于0.08%可以使盘条的强度控制在较低水平。盘条拉拨试验结果表明，马氏体组织是引起脆断的重要原因，对盘条化学成分和冷却速度的控制是生产具有优良加工性能焊接用钢盘条的必要措施。
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| 关 键 词： | 碳含量 焊接用钢 盘条 抗拉强度 马氏体 性能 组织 控制冷却 |
EFFECT OF CARBON AND CONTROL COOLING PROCESS ON ER70S-6 WIRE ROD PROPERTIES AND MICROSTRUCTURE |
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| LIU Jibin,HU Lunji.EFFECT OF CARBON AND CONTROL COOLING PROCESS ON ER70S-6 WIRE ROD PROPERTIES AND MICROSTRUCTURE[J].Iron & Steel,2002,37(9):43-46. |
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| Authors: | LIU Jibin HU Lunji |
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| Affiliation: | LIU Jibin HU Lunji (Huazhong University of Science and Technology) WANG Yutao MIAO Kai XIAO Xiaohua (Wuhan Iron and Steel (Group) Co.) |
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| Abstract: | The control cooling process of ER70S 6 wire rod with different carbon content was studied. The result shows the high finish rolling temperature can lower the tensile strength of wire rod but induce heterogeneous microstructure, the strength of wire rod with a carbon content below 0.08 % is relative low. The analysis of drawing test shows that brittle fracture is caused by martensite formation in the wire, so the most important factor to manufacture quality wire rod is to control the carbon content, and cooling rate after rolling. |
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| Keywords: | steel for welding electrode wire rod tensile strength control cooling martensite |
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