You don't know the details, the common characteristics of phosphor bronze electrodes in the refrigeration industry!
Release time:
2022-06-07
【Summary Description】 In the refrigeration industry, in general, in the process of product manufacturing, installation and maintenance, pipe welding is a key link. It not only affects the appearance, but also affects the normal working lamp problem of the system, which must be paid great attention. In this application industry, the frequency of using non-ferrous metal materials such as copper and aluminum is extremely high, so the applicability and advantages and disadvantages of phosphor copper electrodes or other solder applications need to be mastered.
In the refrigeration industry, in general, in the process of product manufacturing, installation and maintenance, pipe welding is a key link. It not only affects the appearance, but also affects the normal working lamp problem of the system, which must be paid great attention. In this application industry, the frequency of using non-ferrous materials such as copper and aluminum is very high, so phosphorus copper electrodes or other applications.SolderThe applicability and advantages and disadvantages need to be mastered.
1. Brazing of copper and copper
Optionalphosphor copper solderOr phosphor copper solder with low silver content, such as 2% or 5% silver-based solder. This kind of solder price is relatively cheap, and has a good solution, uses the filling and wetting process, does not need the flux. (Especially suitable for welding compressor connection port)
The pipe fittings of refrigeration and air conditioning are mostly copper (purple) pipes, and the commonly used solder types are copper-phosphorus solder, silver-copper solder, copper-zinc solder, etc. In the welding according to the characteristics of the pipe material, the correct choice of solder and skilled operation, to ensure the quality of welding.
2. Welding of copper and steel
Brass strip solder plus appropriate flux can be selected. When soldering, the solder is heated to a certain temperature and then inserted into the flux to melt the flux and attach to the solder. However, the residual flux near the weld joint must be scrubbed with hot water or water vapor to prevent corrosion. In the use of flux, it is best to use alcohol diluted into paste, coated on the surface of the weld, welding alcohol quickly evaporated to form a smooth film is not easy to lose, but also to avoid the risk of water immersion in the refrigeration system.
3. Welding of copper and iron
Phosphor copper solder (2% or 5% silver-based solder) or brass bar solder can be selected, but corresponding fluxes such as borax, boric acid or mixed fluxes of boric acid are also required. If it's phosphor bronzeWelding rodNo flux is needed.
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