Air conditioning copper aluminum tube how to connect? It's broken at the copper aluminum pipe joint. What should I do?
Welding of copper and aluminum is an international welding problem, traditional methods commonly used in the tin welding of copper and aluminum, but the molding method is not good, and not a good strength, can not be applied to actual production, so far, can be used for welding copper and aluminium materials few, two kinds of low temperature welding copper and aluminum welding materials are now introduced to everyone, it is easy to solve the welding between the two kinds of metal.1:M51 welding wire diameter of 3.2mm, temperature of 179 degrees can be used for welding welding, gas welding or soldering iron, of course like better reflow machine equipment like effect, easy temperature control, good fluidity, non-toxic, single-sided double-sided molding welding, tensile strength after welding for 13kg/mm2.2:MG460 welding wire, welding wire specification, diameter 1.6mm, low temperature 260 degrees can be welded, simple operation, welding mode is the same as above, the tensile strength after welding is 18kg/mm2, the fluidity is better than M51.
1. the copper tube inside and outside of the tube wall is clean, and then in the brass (copper tube outer diameter equal to the diameter) has been prepared with uniform wall paste aluminum powder, aluminum tubes inserted into 10mm.2 open welding torch, adjust the mixing ratio of oxygen and B, choose neutral flame. With the flame heating and the alignment of adjacent copper tubes (heat uniformly faster), when heated to melt in the copper tube to start, and then rotate the brass pretty, even soluble together, then take off the gun.3 note that the paste is aluminum powder aluminum powder and water.Another point is to note that it is in the pipeline will have aluminum slag, must blow clean hair in small, because in a brass tube is formed when rubbed into aluminum complex
Welding method of freezing evaporator copper aluminum joint1, company introduced Rock ring maintenance technology, on the market if the Rock ring leakage, evaporator leakage or box fault need to change the box, because the factory production and customer service with the Rock Rock ring ring, customer service department has from the German company purchased part of customer service for the rocklyn by Rock ring, but the price is more expensive. Two easy to leak, and must use special crimping pliers.Welding is the welding problems in the process of the Chinese Academy of Sciences, after years of research, developed a new type of welding material, the material can not only be used in copper welding, aluminum welding, more different melting point between the copper and aluminum welding, the result is innovative and advanced, which belongs to the international advanced level. Because the material is the latest achievement in the world, the cost of raw material is more expensive, so the price is higher, and the price will decrease gradually with the decrease of production cost. By calculation, the price of a single solder joint is reduced by 35% compared with the use of a Rock ring.
This welding is a lot of trouble. It's not worthwhile to weld out the refrigerant. How expensive is the refrigerant now?. Change a pair of aluminium tube, also be 20 yuan or so
