Electrofusion welding is a form of resistive implant welding used to join pipes. A fitting with implanted metal coils is placed around two ends of pipes to be joined, and current is passed through the coils. Resistive heating of the coils melts small amounts of the pipe and fitting, and upon solidification, a joint is formed. It is. Advantages of electrofusion welding:• Simple process capable of producing consistent joints• Process is entirely contained, reducing the risk of joint contamination Electrofusion welding employs fittings that are placed around the joint to be welded. Metal coils are implanted into the fittings, and electric current is run through the coils to generate heat and melt part of the pipes, forming a joint upon solidification. There are two possible. Electrofusion welding requires electrical current to be passed through the coils implanted in the fittings. Since the electrical energy input is. The strength of an electrofusion joint is measured using tensile and peel tests on coupons taken from the fusion zone of the joint. Two methods have been developed to assess the effect of fusion time on joint strength:1. Simulating. Electrofusion welds are performed by attaching a controlled power supply to the electrofusion fitting. There are typically two modes of operation. Installation of couplers and tapping tee fittings require slightly different procedures. Common installation steps for each are given below.Couplers1. Wash pipe ends to create clean surfaces for joining Stages during weldingElectrofusion welding is characterized by four distinct stages that occur during the welding process:.
