How can the refrigerator be welded with copper aluminum tube?
Welding powder, copper electrode can be used welding!AskExcuse me, is God welding powder? Can you give me more details? Thank you.Chasing the answerI used borax, and now I'm not sure what it is. Now are selling refrigeration parts, where to buy welding powder and welding rod, welding powder 5 pieces, 2 pieces of welding rod!
Welding powder, copper electrode can be used welding!
1) prior to the expansion of copper aluminum tube (caliber size to M51 welding wire can be very good penetration into the copper aluminum pipe border is appropriate), the copper tube into the aluminum tube, it is best to polish the surface of the dirty material.2) apply the equivalent M51-F flux at the weld and heat the base material until the surface M51-F flux boils, indicating that the working temperature of the M51 wire has reached 179 degrees.3) after the M51-F flux boils, the M51-F wire is fused with the M51 wire by the temperature of the base metal. At this point, continue to heat the base metal to compensate for the loss of heat, because copper and aluminum are very good heat conductors. Here, because there is a continuous heating process, M51-F has a process of evaporation and dissipation. When the base metal surface is dry and without flux, please use M51 welding wire with M51-F flux to drip on the welding surface.4) when the M51 wire is fully flowing, let it cool slowly and naturally. Surface fluxes are easily removed with warm water.
