(1) After the polyethylene pipe is welded with a pe hot melt machine, the third-party acceptance should be strengthened, and a certain proportion of the joints should be cut appropriately for internal inspection.
(2) Check the welding data of all welding ports, especially the pe automatic hot melt machine. See (Operation of Fully Automatic Hot Melt Welding Machine) for details
(3) Check the degree of appearance damage first. Inspection and acceptance units such as supervisors shall select a certain proportion of welds for visual inspection based on the construction quality, and each welder shall have no less than 5 welds.
(4) Destructive test of interface should be done for each project. In the destructive test, the weld can be cut into 4 pieces to check the internal fusion. Incomplete fusion is regarded as unqualified. A tensile test can also be done to see if the tensile strength meets the design and specification requirements.
