常用金属焊接技术研究与分析

Commonly used metal welding technology research and analysis

氩弧焊通常被称为TIG焊接,它是在非消耗电极和工件之间的产生的一种热电弧焊接;根据工件的厚度来决定所需的渗透和焊缝宽度选择以及TIG焊接速度、焊接电流和预热温度等。当进行高速自动焊接时,还需要考虑气体焊接速度对其起保护作用的影响。保护气流在焊接速度过大时严重偏后,可能致使钨电极尖,弧柱,熔池暴露在空气中。因此,我们必须采取如焊炬前倾一定角度或增加保护气体的流量适当的措施,以此保持良好的保护作用。

Argon arc welding is often called the TIG welding, it is in the consumption between electrode and workpiece to produce a thermoelectric arc welding; According to the thickness of the workpiece to determine the required penetration and weld width selection and TIG welding speed, welding current and the preheating temperature, etc. When in high speed automatic welding, also need to consider the gas welding speed on its protection. Protect the air after serious slant when welding speed is too large, may cause tungsten electrode tip, arc beam and molten pool when it is exposed to the air. Therefore, we must take such as welding torch forward Angle or proper measures to increase the flow of shielding gas, to keep a good protection.