Traditional Culture Encyclopedia - The 24 Solar Terms - How to adjust argon arc welding current?
How to adjust argon arc welding current?
Determine the welding speed: when the welding speed increases, the penetration depth and width decrease. If the welding speed is too fast, it is easy to produce incomplete fusion and incomplete penetration. If the welding speed is too slow, the weld will be wider, and there may be defects such as missing welding and burning through. In manual TIG welding, the welding speed is usually adjusted at any time according to the size and shape of the molten pool and the fusion on both sides.
Adjust the extension length of tungsten electrode: In order to prevent the nozzle from overheating and burning, the end of tungsten electrode should usually extend out of the nozzle. The distance from the tip of the tungsten electrode to the end face of the nozzle is the extended length of the tungsten electrode. The shorter the extension length of tungsten electrode, the closer the distance between nozzle and workpiece, and the better the protection effect, but too small will hinder the observation of molten pool. When welding the flange, it is advisable to extend the tungsten electrode by 3 mm ~ 6 mm
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