Aluminum welding refers to the welding of aluminum and aluminum alloys, including various techniques and welding processes. Welding methods mainly include:
Double-sided synchronous argon arc welding; 2 welders inside and outside the cylinder should arc at the same time, welding in the same direction, with a tacit understanding. With a gap in the groove, the welders inside and outside can see each other's arc to grasp the welding speed. Without a gap, the groove can also judge whether the speed is consistent according to the level of welding meat. If it is much more transparent, the welder inside can speed up, and if it is less slow. The inside welder can choose not to send wire according to the form of groove. Because the external welding wire is to be fused, the welding current of the outside welder is generally about 10-20A higher than the welding current of the inside welder, so as to reduce the number of welding layers as much as possible, because the more the welding layer, the easier it is to produce pores. The roughness of groove processing should be uniform, and the gap should be uniform. The gap can be controlled by the way of point solid welding or the method of stainless steel partition.
2, the single side welding with stainless steel ring: welding arc welding groove outside, high melting point temperature of stainless steel lining ring force of welding meat in good shape, ensure the surface of inside weld forming, single side band lining weld, avoid high temperature melting stainless steel ring, arc also should be avoided when polishing grinding to the stainless steel ring, stainless steel material contamination.
