窄间隙TIG全位置自动焊保护气体选择

Selection of Shielded gas narrow gap TIG all-position welding

窄间隙深坡口自动焊主要用于厚壁构件的焊接,保护气体以高纯度(99.999%)Ar为宜。通过试验分析了在给定的焊缝深度下,保护气体流量的确定以及气体出口压力对焊缝成形的影响。

Narrow gap TIG all-position automatic welding for welding thick wall components,the shielded gas with high pure Ar（99.999%） as well.By analyzing the test results given in the weld depth under the Shielded gas flow is determined,and the gas outlet pressure effects on the weld shaping.