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介绍脉冲MIG焊(熔化极惰性气体保护焊)熔滴过渡控制的发展现状,分析了现有控制法存在的局限性,阐述一种最新的控制法-熔滴过渡光谱控制法的原理、优越性及其进展。指出这方面的发展趋势。电弧光谱信号在反映脉冲MIG焊熔滴过渡方面有很大的优越性,其信号品质和灵敏度远胜过以往的信号。相应的光谱控制法己在实验室成功地实现了脉冲MIG焊1峰0基的精确控制,并可能推广用于2峰0基、3峰0基的控制,甚至推广用于连续电流焊条件下熔滴过渡的控制中,工艺适应性宽,前景广阔。
This paper introduces the development of pulse MIG welding (molten inert gas shielded arc welding) droplet transfer control, analyzes the limitation of the existing control method, expounds the principle of a new control method - droplet transfer spectroscopy control method, superiority And its progress. Point out the development trend in this respect. The arc spectrum signal has great superiority in reflecting the droplet transfer of pulsed MIG welding, and its signal quality and sensitivity are much better than the previous ones. The corresponding spectral control method has been successfully achieved in the laboratory pulse MIG welding 1 peak 0 base of precise control and may be used to promote the 2 peak 0 base, 3 base 0 base control, and even promoted for continuous current welding conditions Droplet transfer control, process adaptability and broad prospects.