摘要
焊条电弧稳定性是影响其工艺性的主要因素,为避免焊条电弧焊因焊工技能差异对电弧稳定性评价造成影响,导致难以对焊条本身工艺稳定性做出真实、客观评价,基于焊条自动焊机器人,通过电弧分析仪对E308L-16焊条焊接电参数进行测试,同时结合高速摄像等同步检测平台,提取与熔滴过渡形态相关的特征信息,进行E308L-16焊条电弧稳定性研究。结果表明,通过控制焊接机器人的反馈控制弧压,E308L-16焊条可以得到短路过渡和渣壁过渡两种不同过渡方式;反馈控制弧压为19 V时熔滴过渡形式以大颗粒短路过渡为主,焊接过程中套筒深度较小,焊接电流较大,大于21 V时以渣壁过渡为主;相比焊接电流,反馈控制弧压是决定熔滴过渡形式的主导因素;试验中采用中长弧操作时,电弧稳定性较好。
The electrode arc stability is the main factor that affects its manufacturability. In order to avoid the impact of SMAW on the evaluation of arc stability due to differences in welder skills, and it is difficult to make a true and objective evaluation of the electrode process stability. Based on the electrode welding robot, the welding electrical parameters of the E308L-16 electrode is tested through the arc analyzer, and combining the high-speed camera and other synchronous detection platforms, the characteristic information related to the metal transfer shape is extracted, and the arc stability of E308L-16 electrode is studied. The results show that by controlling the feedback control arc voltage of the welding robot, the E308L-16 electrode can achieve two different transition modes: short circuiting transfer and flux-wall guided transfer. At 19 V, the main form of metal transfer is short circuiting transfer of large particles. During the welding process, the sleeve depth is small and the welding current is large. At 21 V or above, the main form of metal transfer is flux-wall guided transfer.Compared with welding current, feedback control arc voltage is the dominant factor to determine the metal transfer form.The arc stability is better when the medium and long arc operation is adopted in the test.
作者
邹小平
魏超
刘铁刚
姜英龙
郭枭
徐锴
罗庆
ZOU Xiaoping;WEI Chao;LIU Tiegang;JIANG Yinglong;GUO Xiao;XU Kai;LUO Qing(China Nuclear Power Engineering Co.,Ltd.,Shenzhen 518124,China;HarbinWelding Institute Co.,Ltd.,Harbin 150028,China;Shanghai Electric Nuclear Power Equipment Corporation Ltd.,Shanghai 201306,China)
出处
《电焊机》
2022年第2期42-48,共7页
Electric Welding Machine
