| U71Mn材质龙门吊轨道裂纹的成因与安装工艺的改进 |
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| 引用本文： | 朱达新.U71Mn材质龙门吊轨道裂纹的成因与安装工艺的改进[J].现代机械,2014(5). |
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| 作者姓名： | 朱达新 |
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| 作者单位： | 江苏省江阴中等专业学校机电工程系,江苏 江阴,214400 |
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| 摘 要： | 本文介绍了货轮左右舷侧龙门吊轨道角焊缝连接处出现大量裂纹,从U71Mn材质轨道钢的焊接性能入手,对其化学成分及机械性能进行了分析,提出了甲板轨道安装的改进方案,即采用两边加夹板的形式固定轨道的横向移动,供同行参考。
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| 关 键 词： | 鱼尾板 角焊缝 冷裂纹 马氏体组织 夹板 |
The cause of cracks on U71Mn gantry crane rail and improvement of its installation technology |
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| ZHU Daxin.The cause of cracks on U71Mn gantry crane rail and improvement of its installation technology[J].Modern Machinery,2014(5). |
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| Authors: | ZHU Daxin |
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| Abstract: | This article introduces the cause of large number of cracks at the fillet weld joint of gantry crane rail on both sides of the cargo. The paper analyzes chemical composition and mechanical properties of the welding performance of U71 Mn rail steel material. And deck rail installation improvement scheme is proposed,which fixes orbit lateral movement through splint on both sides. |
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| Keywords: | fishplate fillet weld cold crack martensitic structure splint |
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