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活性剂焊接是近十年来发展起来的增大焊接熔深,改善焊缝成形和焊接质量,提高焊接生产效率的新技术。早期主要集中在A- TIG焊,已在碳钢、不锈钢、高温合金、钛合金的焊接中有了成功的应用,对于铝镁合金的活性剂焊接技术也在研究中。目前研究认为活性剂提高熔深的机理一是活性剂可影响电弧特性,提高电弧的能量密度和作用于熔池的电弧力,二是活性剂影响了熔池的表面张力而提高了焊接熔深,或是2种原因兼而有之。随着A- TIG焊应用的成熟,活性剂焊接拓展到MIG焊、等离子弧焊和激光焊中的应用成为活性剂焊接发展的一个方向,在提高熔深,改善焊缝成形方面有了初步的效果
Active agent welding is the development of the past decade to increase the welding penetration, improve the weld formation and welding quality, improve welding production efficiency of new technologies. Early mainly concentrated in the A-TIG welding, carbon steel, stainless steel, high temperature alloys, titanium alloy welding has been successfully applied, the active agent for the aluminum-magnesium alloy welding technology is also under study. The current study suggests that the mechanism of the active agent to improve the penetration depth is that the active agent can affect the arc characteristics, increase the energy density of the arc and the arc force acting on the weld pool, and secondly, the active agent affects the surface tension of the weld pool and improves the weld penetration , Or both for two reasons. With the maturity of A-TIG welding applications, the application of active agent welding to MIG welding, plasma arc welding and laser welding has become one of the directions for the development of active agent welding. There is a preliminary study on improving penetration and improving weld formation effect