How to solve the electrification problem of air conditioning copper tube

Solution of air conditioning copper tube electrification:

A, similar materials welding:

1, phosphor copper solder or phosphor copper solder with low silver content, such as 2% or 5% silver-based solder, can be selected for brazing copper to copper. This kind of solder is relatively cheap and has good meltability. It adopts joint filling and wetting process and does not need flux.

2, steel and steel welding can choose brass rod solder and appropriate flux, when welding, the solder will be heated to a certain temperature and inserted into the flux, so that the flux will adhere to the solder after melting, but after welding, the residual flux near the joint must be scrubbed clean to prevent corrosion.

Second, the welding of different materials:

1, copper and steel or copper and aluminum can be welded with silver-copper solder and appropriate flux. After welding, the residual flux near the joint must be cleaned with hot water or steam to prevent corrosion. When using flux, it is best to dilute it into paste with alcohol and coat it on the surface of welded joint. When welding, alcohol evaporates quickly, forming a smooth film, which is not easy to lose, and at the same time, it can avoid the danger of water soaking into the refrigeration system.

2, copper and iron welding can choose phosphor copper solder or brass strip solder, but also need to use the corresponding flux, such as borax, boric acid or mixed flux of boric acid.

Third, different welding materials, different pipe diameters and different welding operations. The flame size can be controlled and adjusted by two needle valves. According to the volume ratio of oxygen and acetylene gas, flame regulation can be divided into three types: carbonization flame, neutral flame and oxidation flame.