I want to do copper and aluminum joint, but once not welding finished, and then heating, aluminum pipe on the oxidation, how should welding, with what welding tools, seek professional answer, answer, thank you
When welding must master the furnace, with special copper aluminum welding, first clean the surface of the pipe, clean with fine sandpaper, do not rush to the heating electrode, unlike copper welding, if a welding electrode does not melt into the tube, a drop of the ball. The welding gun moves back and forth, do not stop, if the stop will weld the aluminum tube, wait until the aluminum pipe is slightly red, then put on the welding rod, then the electrode will immediately accommodate to the pipe, the welding pipe must practice more.
