1. Protect the gas from argon.
2. The length of the tungsten pole protruding from the gas nozzle.
3. The use of vertical external characteristics of the power supply, DC when the use of positive polarity (wire connecting cathode).
4. In order to prevent the appearance of welding stomata, welding parts such as rust, oil and so on must be cleaned up.
5. Generally suitable for the welding of thin plates below 6mm, with beautiful weld forming, small welding deformation characteristics.
6. Windproof and ventilation. Where there is wind, please take measures to block the net, and in the indoor should take appropriate ventilation measures.
7. Welding arc length, welding ordinary steel, to 2~4mm is preferred, and when welding stainless steel, to 1~3mm is preferred, too long protection effect is not good.
8. In order to make argon well protect the welded melting pool, and easy to apply welding operation, tungsten pole centerline and welding workpiece should generally maintain 80-85° angle, filling wire and workpiece surface angle should be as small as possible, generally around 10°.