| 钢轨闪光焊时造成“电烧伤”缺陷的原因 |
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| 引用本文： | 郁士聪 苏俊杰. 钢轨闪光焊时造成“电烧伤”缺陷的原因[J]. 物理测试, 1992, 0(6): 44-47 |
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| 作者姓名： | 郁士聪 苏俊杰 |
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| 作者单位： | 西安冶金建筑学院，陕西茂陵钢轨焊接厂，陕西茂陵钢轨焊接厂，陕西茂陵钢轨焊接厂 710055 |
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| 摘 要： |
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| 关 键 词： | 钢轨 闪光焊 电灼伤 分析 |
Formation of Electric Spark Burning Defects During Flash Welding |
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| Yu Shicong,Xi'an Institute of Metallurgy and Constructure Engineering,Xi'an. Formation of Electric Spark Burning Defects During Flash Welding[J]. Physics Examination and Testing, 1992, 0(6): 44-47 |
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| Authors: | Yu Shicong Xi'an Institute of Metallurgy Constructure Engineering Xi'an |
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| Affiliation: | Yu Shicong,Xi'an Institute of Metallurgy and Constructure Engineering,Xi'an 710055 |
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| Abstract: | The morphology of fracture surface, microstructure and distribution of microhardness of the spark berning defect zones were studied by optical microscope, scanning electron microscope and microhardness tester. The results showed that due to the eltctrode jaws and track surfaces did not fully contact during flash welding, some gaps between surface induced sparks which heated some spots on the track surface to high temperature and then quenched by the track itself. This is the cause for the formation of electric spark burning defects. |
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| Keywords: | steel track(U71Mn) flash welding electric spark burning |
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