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焊丝成分对高氮不锈钢GMAW稳定性及熔滴过渡行为的影响

明珠1,2,王克鸿1,王伟2,范成磊3,王有祁2,冯胜强2

明珠1,2,王克鸿1,王伟2,范成磊3,王有祁2,冯胜强2. 焊丝成分对高氮不锈钢GMAW稳定性及熔滴过渡行为的影响[J]. 焊接学报, 2018, 39(7): 24-28. DOI: 10.12073/j.hjxb.2018390168
引用本文: 明珠1,2,王克鸿1,王伟2,范成磊3,王有祁2,冯胜强2. 焊丝成分对高氮不锈钢GMAW稳定性及熔滴过渡行为的影响[J]. 焊接学报, 2018, 39(7): 24-28. DOI: 10.12073/j.hjxb.2018390168
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MING Zhu1,2, WANG Kehong1, WANG wei2, FAN Chenglei3, WANG Youqi2, FENG Shengqiang2. Effect of welding wire compositions on welding process stability and droplet transfer behavior of high nitrogen stainless steel GMAW[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(7): 24-28. DOI: 10.12073/j.hjxb.2018390168
Citation: MING Zhu1,2, WANG Kehong1, WANG wei2, FAN Chenglei3, WANG Youqi2, FENG Shengqiang2. Effect of welding wire compositions on welding process stability and droplet transfer behavior of high nitrogen stainless steel GMAW[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2018, 39(7): 24-28. DOI: 10.12073/j.hjxb.2018390168
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焊丝成分对高氮不锈钢GMAW稳定性及熔滴过渡行为的影响

  • 1.南京理工大学 材料科学与工程学院, 南京 210094;
    2. 中国兵器科学研究院 宁波分院, 宁波 315103;
    3. 哈尔滨工业大学 先进焊接与连接国家重点实验室, 哈尔滨 150001

基金项目: 国防科工局项目（JSCG2017606B005）

Effect of welding wire compositions on welding process stability and droplet transfer behavior of high nitrogen stainless steel GMAW

  • School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
    2. Ningbo Branch of China Academy of Ordnance Science, Ningbo 014034, China;
    3. State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

摘要

    摘要
  • 摘要: 文中主要对高氮奥氏体不锈钢专用焊丝焊接过程的稳定性进行研究，分析了不同氮含量焊丝的电流电压信号，并用高速摄像和汉诺威质量检测分析仪分析焊接过程的熔滴过渡.结果表明，随焊丝含氮量增加，焊接过程中虽然存在飞溅现象，但焊接过程更加稳定，这是由于为了使焊后熔敷金属为全奥氏体组织，将焊丝的含氮量增高的同时，减少Ni元素的加入，提高Mn元素含量，从而使熔滴的表面张力增加，焊接过程稳定性相对提高，并且在N元素和合金元素共同作用下，焊丝的喷射过渡临界电流降低，射滴过渡和射流过渡更加容易发生.
    Abstract: In order to analyze the stability of the special welding wires for high nitrogen stainless steel, high-speed camera was used to track the droplet transfer morphology and analyzer of Hannover was used to evaluate the droplet transfer. The results show that although weld spatter produced along with the increase of nitrogen content, the stability of the droplet transfer and the signals of currents and voltages are improved. This is because to make deposited metal astenitized, the Ni content was reduced while the Mn content was increased with increasing nitrogen content, so that surface tension of the material was improved. And the adjustment of elements reduces the critical current of spray transfer so that the spray transfer is more likely to happen.
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    • 参考文献(7)
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  • 收稿日期:  2018-01-20

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