Pre-welding: 4mm thickness of about not break open, direct solder, a single penetration. 4 to 6 mm thickness of butt weld joints can be no open break-sided Welding Electrode. 6 mm or more, generally open V or U, X-shaped groove.
Second: welded parts, filler wire for degreasing and descaling. To ensure the welding quality.
Welding parameters include: welding current, tungsten diameter, arc length, arc voltage, welding speed, protect air, the nozzle diameter.
1, weld welding current is a key factor in the decision. Usually based on weldment material, thickness, and the groove shape to decide.
2, welding pole diameter welding current according to the size of the decision, the larger the current, the greater the diameter.
3, arc welding and arc movies, arc length range of about 0.5 to 3mm, the corresponding arc voltage of 8 ~ 10V.
4, welding speed: Choose to take into account the current size, sensitivity to weld pieces of material, welding position and mode of operation and other factors.

keywords:Aluminium Welding Electrode