电焊机2024，Vol.54Issue(7)：55-61,7.DOI:10.7512/j.issn.1001-2303.2024.07.08
PPCA-TIG焊过程中MnCl2和CaF2活性剂电弧光谱对比研究
Spectral Analysis of PPCA-TIG Welding Arc based on MnCl2 and CaF2
摘要
Abstract
PPCA-TIG welding as a high-efficiency welding method improves the utilisation of active elements on the sur-face 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,CaF2 and MnCl2,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 re-sults show that under the same parameters,the addition of MnCl2 and CaF2 active agents can significantly increase the over-all 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.关键词
PPCA-TIG焊/活性剂/电子密度/电弧光谱/电弧温度Key words
PPCA-TIG welding/electron density/arc spectroscopy/arc temperature分类
矿业与冶金引用本文复制引用
姜百川,黄勇,岳仕麒,何正刚,位亚魁,黄健康..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):55-61,7.基金项目
国家自然科学基金资助项目(5196050178) （5196050178）
