The keypoints of welded stainless steel pipe,Technology

1.Perpendicular to the external characteristics of power DC positive polarity (negative) wire connected
2.Generally suitable for below 6mm sheet welding, weld forming beautiful, welding deformation characteristics
3.The protective gas argon, a purity of 99.99%. When the welding current 50 ~ 150A, argon flow rate of 8 ~ 10L/min, when the current 150 ~ 250A, the argon gas flow 12 ~ 15L/min.
4.Tungsten from the gas nozzle highlight the length of the better 4 ~ 5mm, shelter in the fillet welds and other poor places is 2 ~ 3mm, slotted deep 5 ~~ 6mm nozzle to work distance is generally not more than 15mm.
5 In order to prevent welding stomatal welding parts subject to rust, oil, etc. to be cleaned up.
6.The welding arc length, welding ordinary steel, 2 ~ 4mm is better, welded stainless steel, 1 ~ 3mm is better, too long the protection ineffective.
7.Docking base, in order to prevent the back of the bottom of the weld from oxidation, and the back of the need to implement the gas protection.
8.Argon to protect the weld pool, and to facilitate the welding operation, the tungsten centerline weld workpiece generally should be kept 80 to 85 ° angle, filler wire and the workpiece surface angle should be as small as possible. is generally around 10 °.
9 Wind and ventilation. The wind, you take the backstop measures, appropriate ventilation measures should be taken indoors.