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纸质出版日期： 2024-07-25 ，
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姜百川，黄勇，岳仕麒，等.PPCA-TIG焊过程中MnCl2和CaF2活性剂电弧光谱对比研究［J］.电焊机，2024，54（7）：55-61.
JIANG Baichuan, HUANG Yong, YUE Shiqi, et al.Spectral Analysis of PPCA-TIG Welding Arc based on MnCl2 and CaF2[J].Electric Welding Machine, 2024, 54(7): 55-61.
PPCA-TIG焊作为一种高效焊接方法，提高了活性元素在熔池表面的利用率，但对该电弧物理行为的理解仍存在空缺。为阐明PPCA-TIG焊中
活性元素在电弧中的分布特征和对电弧物理行为的影响规律，拟采用光谱法，设计电弧空域逐点扫描同步采集系统，使用CaF
2
、MnCl
2
两种活性剂，采用Stark谱线法计算电弧电子密度，并对Ca、Mn元素的分布特征进行讨论。结果表明，相同参数下，加入MnCl
2
和CaF
2
活性剂后能明显提高整体电弧的电离度和电子密度，在热输入保持不变的情况下，电子密度的提高导致电流密度增加，熔池表面的热量更加集中，从而增加焊缝熔深。
PPCA-TIG welding as a high-efficiency welding method improves the utilisation of active elements on the surface of the molten pool
but there is still a gap in the understanding of the physical behaviour of this arc. In order to elucidate the distribution characteristics of active elements in the arc and the influence law on the physical behaviour of the arc in PPCA-TIG welding
this paper intends to adopt the spectroscopic method
design the arc airspace point-by-point scanning synchronous acquisition system
and use two active agents
CaF
2
and MnCl
2
to calculate the electron density of the arc by using the Stark spectral line method
and the distribution characteristics of the Ca and Mn elements are discussed. The results show that under the same parameters
the addition of MnCl
2
and CaF
2
active agents can significantly increase the overall arc ionisation
and can significantly increase the electron density of the arc. Under the condition that the heat input is kept unchanged
the increase in electron density leads to an increase in current density
and the heat on the surface of the molten pool is more concentrated
thus increasing the weld depth.
PPCA-TIG焊活性剂电子密度电弧光谱电弧温度
PPCA-TIG weldingelectron densityarc spectroscopyarc temperature
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