| 长钢轨接触焊焊头表面小凹痕的预防措施 |
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| 引用本文： | 王欣,俞绍全.长钢轨接触焊焊头表面小凹痕的预防措施[J].城市轨道交通研究,2004,7(5):79-81. |
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| 作者姓名： | 王欣 俞绍全 |
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| 作者单位： | 铁道第一勘察设计院西安分院,710043,西安;柳州铁路局工务处,545007,柳州 |
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| 摘 要： | 结合广州地铁2号线接触焊焊接长钢轨的实践,分析了产生焊头表面小凹痕的原因,提出改变垫高钢轨的方式、缩小正火范围、降低正火温度、限制接头错牙量等预防措施.
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| 关 键 词： | 钢轨 接触焊 小凹痕成因 预防措施 |
| 修稿时间： | 2003年8月16日 |
Preventive Measures for Small Concaves of Contact-welding Long Rail Surface |
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| Wang Xin,Yu Shaoquan Xi'an Branch,The First Survey and Design Institute of the Ministry of Railways,Xi'an,China.Preventive Measures for Small Concaves of Contact-welding Long Rail Surface[J].Urban Mass Transit,2004,7(5):79-81. |
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| Authors: | Wang Xin Yu Shaoquan Xi'an Branch The First Survey and Design Institute of the Ministry of Railways Xi'an China |
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| Institution: | Wang Xin,Yu Shaoquan Xi'an Branch,The First Survey and Design Institute of the Ministry of Railways,710043,Xi'an,China |
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| Abstract: | This paper analyzes the cause of small concaves around the welding seam in the long rail of Guangzhou Metro Line 2,and presents preventive measures,such as increasing the under layer of the rail,limiting the weld seam,lowering the welding temperature etc. |
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| Keywords: | steel rails contact-weld cause of small concaves preventive measures |
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