| 中部槽焊接过程中的热变形机理分析 |
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| 引用本文： | 宋永刚,黄东风,张松林,刘成宏.中部槽焊接过程中的热变形机理分析[J].煤矿机械,2011,32(12):126-128. |
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| 作者姓名： | 宋永刚 黄东风 张松林 刘成宏 |
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| 作者单位： | 三一重型装备有限公司,沈阳,110027 |
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| 摘 要： | 通过运用热变形机理,即温度梯度机理、屈服机理和增厚机理,对中部槽焊接过程中的热变形进行了分析,指出中板双面开坡口多次堆焊的焊接工艺可有效控制焊后中板的变形量;底板的单面平焊工艺,焊后产生面向焊缝的弯曲变形;同时对焊接变形量超出要求的中部槽提出了2种根据热变形机理的火焰加热修形方法。
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| 关 键 词： | 热变形机理 弯曲变形 焊缝 |
Thermal Analysis of Deformation Mechanism on Middle Parts of Scraper Conveyor |
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| SONG Yong-gang,HUANG Dong-feng,ZHANG Song-lin,LIU Cheng-hong.Thermal Analysis of Deformation Mechanism on Middle Parts of Scraper Conveyor[J].Coal Mine Machinery,2011,32(12):126-128. |
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| Authors: | SONG Yong-gang HUANG Dong-feng ZHANG Song-lin LIU Cheng-hong |
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| Affiliation: | SONG Yong-gang,HUANG Dong-feng,ZHANG Song-lin,LIU Cheng-hong(Sany Heavy Equipment Co.,Ltd.,Shenyang 110027,China) |
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| Abstract: | The thermal deformation on the middle parts of the scraper conveyor during the welding process were analyzed by using thermal deformation mechanism,such as the temperature gradient mechanism,the yield mechanism and the thickening mechanism;the welding deformation of the middle plate can effectively controlled by several welding at bilateral chamfer;and when welding on the one side of the bottom plate,the welding deformation will on the same sides with welding beam.While welding deformation beyond the requir... |
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| Keywords: | thermal deformation mechanism bending deformation welding seam |
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