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水下高压干式环境下压力及焊接参数对GMAW焊缝成形的影响

刘剑, 薛龙, 黄继强, 黄军芬

刘剑, 薛龙, 黄继强, 黄军芬. 水下高压干式环境下压力及焊接参数对GMAW焊缝成形的影响[J]. 焊接学报, 2016, 37(2): 29-32,98.
引用本文: 刘剑, 薛龙, 黄继强, 黄军芬. 水下高压干式环境下压力及焊接参数对GMAW焊缝成形的影响[J]. 焊接学报, 2016, 37(2): 29-32,98.
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LIU Jian, XUE Long, HUANG Jiqiang, HUANG Junfen. Effect of pressure and welding parameters on weld bead geometry of GMAW in underwater hyperbaric dry environment[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(2): 29-32,98.
Citation: LIU Jian, XUE Long, HUANG Jiqiang, HUANG Junfen. Effect of pressure and welding parameters on weld bead geometry of GMAW in underwater hyperbaric dry environment[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(2): 29-32,98.
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水下高压干式环境下压力及焊接参数对GMAW焊缝成形的影响

  • 北京石油化工学院 光机电装备技术北京市重点实验室, 北京 102617

基金项目: 国家自然科学基金资助项目(51275051);北京市教育委员会2015年度创新能力提升计划项目(TJSHG201510017023)

Effect of pressure and welding parameters on weld bead geometry of GMAW in underwater hyperbaric dry environment

  • Beijing Key Laboratory of Opto-Mechatronic Equipment Technology, Beijing Institute of Petro-chemical Technology, Beijing 102617, China

摘要

    摘要
  • 摘要: 开展水下高压干法焊接试验研究,在焊接过程相对稳定的情况下,以环境压力、焊接电流、保护气成分、焊丝伸出长度为变量,探索其对于焊缝截面成形的影响规律. 采用正交试验方法,通过试验确定了焊缝熔深、熔宽及余高随上述变量的变化规律. 结果表明,随着环境压力增大,焊接飞溅增多,熔深增加,熔宽减小,余高增高;高压环境下,随着焊接电流增大,熔宽没有明显变化,熔深增加,余高略有增加;随着保护气中CO2比例的增加,熔深减小,熔宽增加,余高变化不明显;随着焊丝伸出长度增加,熔深减小,熔宽增加,余高增加.
    Abstract: Underwater hyperbaric welding was conducted, with the ambient pressure, welding current, composition of welding gas and electrode extension as variables, to investigate the influence on the weld bead geometry. The variation trends of weld penetration, weld width and reinforcement with the above variables were determined by orthogonal experiments. The results show that with the increase of ambient pressure, the welding spatters, weld penetration and reinforcement increased, but the weld width decreased. In hyperbaric environment, with the increase of welding current, the weld width did not change significantly, but the weld penetration increased and the reinforcement also increased slightly. With the increase of CO2 ratio in shielding gas, the weld penetration decreased, the weld width increased, but the reinforcement had no obvious change. With the increase of electrode extension, the weld penetration decreased, the weld width and reinforcement increased.
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    • 参考文献(8)
  • [1] 李 凯. 高压干法GMAW电弧行为及熔滴过渡研究[D]. 哈尔滨: 哈尔滨工业大学, 2014.
    [2] 黄继强, 薛 龙, 吕 涛, 等. 水下高压空气环境下GMAW电弧特性试验[J].焊接学报, 2010, 31(12): 17-20. Huang Jiqiang, Xue Long, Lv Tao, et al. Experiment on characteristics of GMAW arc in underwater hyperbaric air condition[J]. Transactions of The China Welding Institution, 2010, 31(12): 17-20.
    [3] 陈茂爱, 蒋元宁, 武传松, 等. 焊接电流波形对波控短路过渡过程及焊缝尺寸的影响[J]. 机械工程学报, 2014, 50(4): 85-91. Chen Maoai, Jiang Yuanning, Wu Chuansong, et al. Effect of welding current waveforms on metal transfer and weld geometry in controlled short circuiting transfer GMAW[J]. Journal of Mechanical Engineering, 2014, 50(4): 85-91.
    [4] 周 昀, 薛小怀, 包晔峰, 等. 焊接电流和保护气对大电流MAG焊焊缝成形的影响[J]. 造船技术, 2003(6): 29-32. Zhou Yun, Xue Xiaohuai, Bao Yefeng, et al. Effects of current and shielding gas on the welding profile of high current MAG welding[J]. Journal of Marine Technology, 2003(6): 29-32.
    [5] 李 凯, 高洪明, 李海超, 等. 环境压力对高压干法GMAW熔滴过渡影响分析[J]. 焊接学报, 2014, 35(7): 96-100. Li Kai, Gao Hongming, Li Haichao, et al. Effect of ambient pressure on droplet transfer in hyperbaric GMAW[J]. Transactions of The China Welding Institution, 2014, 35(7): 96-100.
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  • 收稿日期:  2015-07-29

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