| 精轧工艺对30mm厚X65管线钢板组织和性能的影响 |
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| 引用本文： | 熊玉彰,李银华,王世森,徐进桥,余宏伟.精轧工艺对30mm厚X65管线钢板组织和性能的影响[J].特殊钢,2011,32(6):53-55. |
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| 作者姓名： | 熊玉彰 李银华 王世森 徐进桥 余宏伟 |
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| 作者单位： | 1. 武钢集团公司研究院,武汉,430080
2. 武钢集团鄂钢公司技术中心,鄂州,436000 |
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| 摘 要： | Nb-Ti微合金化X65管线钢(/％:0.07C、1.60Mn、0.35Mo)的生产工艺流程为130 t顶底复吹转炉-钢包吹氩-LF-RH-250 mm×1 500 mm板坯连铸—连轧至30 mm板-控冷工艺.研究了第Ⅱ阶段开轧(890 ～ 940℃)轧后冷却温度(780 ～ 850℃)和冷却速度(8～20℃/s)对X...
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| 关 键 词： | X65管线钢 30 mm板 控轧控冷 组织 力学性能 |
Effect of Finishing Rolling Process on Structure and Performance of 30 mm X65 Pipeline Steel Heavy Plate |
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| Xiong Yuzhang,Li Yinhua,Wang Shisen,Xu Jinqiao,Yu Hongwei.Effect of Finishing Rolling Process on Structure and Performance of 30 mm X65 Pipeline Steel Heavy Plate[J].Special Steel,2011,32(6):53-55. |
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| Authors: | Xiong Yuzhang Li Yinhua Wang Shisen Xu Jinqiao Yu Hongwei |
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| Affiliation: | Xiong Yuzhang~1,Li Yinhua~2,Wang Shisen~1,Xu Jinqiao~1 and Yu Hongwei~2 (1 Research and Development Institute,Wuhan Iron and Steel(Group) Corp,Wuhan 430080,2 Technical Center,Echeng Iron and Steel Co,Wuhan Steel Group,Ezhou 436000) |
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| Abstract: | The production flow sheet for Nb-Ti microalloying pipeline steel X65(/%:0.07C,1.60Mn,0.35Mo) is 130 t top and bottom combined blown converter-ladle argon blowing-LF-RH-250 mm×1500 mm slab casting-continuous rolling to 30mm plate-control cooling process.The effect of beginning rolling temperature(890～940℃) inⅡrolling passes, cooling temperature(780～850℃) and cooling speed(8～20℃/s) after rolling on tensile properties,drop-weight tear test(DWTT) performance and structure of X65 steel heavy plate has been studied.Results show that with beginning rolling temperature 940℃inⅡrolling passes and cooling speed 20℃/s after rolling the main structure in X65 steel heavy plate is acicular ferrite and granular bainite,the tensile strength and yield strength of plate are respectively 665～695 MPa and 495～520 MPa and the DWTT fibre structure ratio of plate is about 92%to meet the requirement of standard. |
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| Keywords: | X65 Pipeline Steel 30 mm Plate Control Rolling and Cooling Structure Mechanical Properties |
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