(1) After the polyethylene pipe is welded with the PE hot melt machine, the third-party acceptance should be strengthened, and a certain proportion of the interface should be appropriately cut for internal inspection.
(2) Check the welding data of the welding machine of all the welding ports, especially the pe automatic hot melt machine. See (operation of automatic hot-melt welding machine)
(3) Check the appearance of damage first. Acceptance units such as supervisors shall select a certain proportion of welding joints for visual inspection according to the construction quality, and the number of welding joints for each welder shall not be less than 5
(4) Each project should do interface destructive test. In the destructive test, the weld can be cut into 4 pieces, and the internal fusion condition can be checked. The incomplete fusion is regarded as unqualified, and the tensile test can also be done to see whether the tensile strength meets the design and specification requirements.
