Electrofusion welding is a method used to join thermoplastic materials, primarily polyethylene pipes and fittings, through the use of electrical energy. This technique is commonly employed in pipeline construction and repair, particularly in gas and water distribution systems. ### Key Features of Electrofusion Welding: 1. **Heating Mechanism**: Electrofusion welding works by inserting a coil of wire into the fitting or joint area. When an electric current passes through the wire, it generates heat due to electrical resistance.
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