Steel strip pipe manufacturers use a high-temperature connection method to produce products, that is, rigid connection. When energized, the heating element is embedded in the contact surface of the joint. The welding of the electrofusion tape is shown: the resistance wire is embedded in the inner wall with polyethylene electrofusion tape, close to the outer surface of the connecting ends (covering more than two centimeters), and then fastened with a tropical resistance.

When the steel strip tube manufacturer produces the product, the inner wall joint of the resistance wire is firmly supported with a detachable tool, and the resistance wire is powered by an electric fusion welding machine, and the resistance wire is heated, melted, and expanded to form pressure, and the polyethylene on both sides of the interface is connected, and the olefins diffuse each other, power off, and fully cooled and solidified to form a reliable connection. When connecting the electrofusion belt, it must be carried out in strict accordance with the technical indicators required by the electric fusion belt and the operating procedures specified by the equipment. Melt tape must be supplied by the manufacturer.

The main points of the construction of the products produced by the steel strip pipe manufacturer: When connecting the electrofusion belt, it must be carried out in strict accordance with the technical indicators required by the electrofusion belt and the operating procedures specified by the equipment. Melt tape must be supplied by the manufacturer. The steps are as follows: check whether the pipes and electrofusion tapes are damaged. Align the pipes and remove debris. The pipes to be connected should be laid at the > of 20~30cm from the ground through horizontal rods or sandbags

If the pit is excavated on the foundation, the pipe can be placed directly on the foundation. The operating pit is twice as wide as that of the electric smelting, and the depth is 30 cm under the tube and is horizontally aligned. Use a clean cloth to thoroughly remove impurities (including water vapor) from the outer surface of the tube and the walls of the electrothermal melting zone. The solvent removes oil stains and is conducive to the welding of PE materials. Wrap the horizontally aligned pipes tightly with fusion tape. There is a heat-resistant belt on the outside.

Steel strip tube manufacturers can connect the output end of the welding machine with the connecting end of the electric heating melting belt. set the welding time and gear on the electrofusion welding machine, and weld according to the operating procedures. After welding, the pipe must be sufficiently cooled before it can be moved. After cooling, the next welding can be carried out. The construction environment temperature of the products produced by steel strip pipe manufacturers is generally -20~60°C. When the ambient temperature is lower than 0°C, heat preservation measures should be taken. The connection must be made according to the process requirements of the heat shrink tubing tape.

Operation steps (gradually heat from one end to the other) are as follows: check whether the butt ends of the two tubes to be connected are smooth, and the local gap between the two ends after closure should be less than mm。 If it does not meet the requirements, it needs to be repaired on site until it meets the requirements. The ends of the two nozzles to be connected should be overhead, at a certain distance from the ground or ditch wall (the heating tool should be operated in a circumferential direction). Place the heat shrink tubing at one end of the two tubes to be connected, and pull it to a position above 500mm from the end face of the connection (at this time, the protective paper layer on the inner wall of the heat shrinkable tubing must not be damaged, and must be intact to prevent dirt, dust and water from entering the inner wall). Polishing the >long cylinder of the two pipes at the butt ends120mm