Copper welding step roughly and copper welding procedure is, the difference lies in the copper welding rod to use is a requirement, electrodes used to meet the requirements, flux assisted. The use of flux best choice is powdery. The use of copper tube in the welding of the flame is the need to use the flame. The welding sequence is first applied to weld flux position, then heating. Heating time carbonizing flame cannot be directly meet flux, heating location is between the copper pipe and the casing, the flame mouth on the direct 2 move back and forth. Copper tube after heating, the flux has melted into liquid, this time can be immediately preheating of the electrodes placed in the position of the solder joints. Once the welding rod is melted, the flame nozzle is moved back and forth at the 2 point, until the end of the welding electrode is dissolved.

Above is the purple copper pipe welding, the following describes how to extend the service life of the purple copper tube, with purple copper tube heat exchanger as an example, the general heat exchanger used for 2 months. Let the purple copper pipe can live longer, the need for professional equipment maintenance personnel to replace or correct guide rod, timely adjustment and replacement of the guide rail and roller. Because the usage period of the guide rods are relatively long, it is easy to deform, lead ingot head easily damaged the lower end of the copper tube outer surface. The guide roller is not replaced or adjusted easily so that the purple copper tube row wear.