| 无电焊接中厚度钢板焊接接头的组织结构与性能研究 |
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| 引用本文： | 刘宏伟,马世宁,刘吉延,孙晓峰.无电焊接中厚度钢板焊接接头的组织结构与性能研究[J].装甲兵工程学院学报,2010,24(2). |
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| 作者姓名： | 刘宏伟 马世宁 刘吉延 孙晓峰 |
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| 作者单位： | 装甲兵工程学院装备再制造工程系,北京,100072 |
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| 摘 要： | 采用无电焊接方法对12mm厚度钢板进行了焊接。分析了满足中厚度钢板焊接能量要求的技术途径;利用SEM,EDS,XRD等手段观察、分析了焊缝的组织成分与显微结构;测试了焊接接头的拉伸强度、弯曲强度、显微硬度等力学性能。结果表明:在选择高放热体系基础上,通过增大焊接笔直径、减小反应物料粒径、提高压坯密度等方法,可以有效增大焊接热效率,从而满足中厚度钢板焊接能量需求;焊缝组织分为热影响区、熔合区与合金区,焊缝合金与母材间通过熔合区形成了冶金结合;焊接接头因固溶强化和析晶强化的作用,具有良好的力学性能,拉伸强度、平均显微硬度与弯曲强度分别为357MPa、186HV0.2与644MPa,达到了野战应急抢修技术要求。
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| 关 键 词： | 无电焊接 中厚度钢板 组织结构 力学性能 |
Research on Structure and Performances of Non-electric Weld Joints for Medium-thickness Steel Plates |
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| LIU Hong-wei,MA Shi-ning,LIU Ji-yan,SUN Xiao-feng.Research on Structure and Performances of Non-electric Weld Joints for Medium-thickness Steel Plates[J].Journal of Armored Force Engineering Institute,2010,24(2). |
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| Authors: | LIU Hong-wei MA Shi-ning LIU Ji-yan SUN Xiao-feng |
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| Institution: | LIU Hong-wei,MA Shi-ning,LIU Ji-yan,SUN Xiao-feng(Department of Equipment Remanufacture Engineering,Academy of Armored Force Engineering,Beijing 100072,China) |
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| Abstract: | Steel plates with the thickness of 12 mm are welt by non-electric welding technology. The technical ways to meet the energy requirement for welding medium-thickness steel plates are analyzed. The components and micro-structure of the weld joints are analyzed and observed by means of SEM,EDS and XRD. The mechanical performances of tensile strength,average micro-hardness and flexural strength are tested. The results show that based on the high energy reactive system,the thermal efficiency of the weld pens can... |
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| Keywords: | non-electric weld medium-thickness steel plates structure performances |
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