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​The electrofusion welding machines are divided into AC and DC. The main difference in application fields is that AC welding machines are generally used in steel structure manufacturing units or general machinery or agricultural machinery manufacturing units. DC welding machine is mainly used for welding of pressure vessels, boilers, pipelines, or important structural manufacturing units.

​The electrofusion welding machine uses the high-temperature arc generated by the instantaneous short circuit between the positive and negative poles to melt the solder and the material to be welded on the electrode and combine the objects to be contacted. Its structure is very simple, which is a high-power transformer. According to the type of output power supply, electrofusion welding machine can be divided into two types: AC power supply and DC power supply.

​The electrofusion welding machine is a machine that energizes the electrothermal fusion belt to heat the electric heating wire embedded in the electrothermal fusion belt. The heat energy melts the surface of pipes and pipe fittings, cools and solidifies, and then welds the plastic pipes together.

​The electrofusion welding machine uses the high temperature arc produced by the instantaneous short circuit between the plus and minus poles to melt the lot and the material to be welded on the electrode and to connect the objects to be contacted.Its structure is very simple, which is a high-performance transformer.Depending on the type of output power supply, the electrofusion welding machine can be divided into two types: AC power supply and DC power supply.

​The electrofusion welding machine adopts an effective value constant current output, and the output current and welding time can be continuously adjusted in a large range to meet the welding requirements of different electric heating belts. It is mainly used for the electric melting welding of PE electric heating belts.