What should be done if the wall thickness of PE pipe products from the manufacturer is uneven?

1. Check whether the temperature at the floor outlet is stable and feels neither too hot nor too cold; also verify that the water flow in and out is sufficient (especially for pipes where the flow distribution between the front and back sections is uneven). 2. Adjust the wall thickness on the mold and modify the gap size around the mold’s perimeter—keeping the gap consistent around small-diameter pipes, while ensuring it’s wider on the left and narrower on the right for large-diameter pipes. 3. Adjust the nozzle angles inside the vacuum shaping machine and the spray chamber to ensure uniform cooling of the pipe. 4. Adjust the water outlet of the sizing sleeve (groove and water holes) to ensure even water flow. 5. Adjust the diameter-to-wall-thickness ratio to minimize the impact of melt tension on the pipe wall thickness. 6. The PE pipe manufacturer should disassemble the mold, check whether any internal screws are loose, and retighten them if necessary.

1. Check whether the temperature at the floor outlet is stable and feels neither too hot nor too cold; also verify that the water flow is sufficient (especially for cases where the flow rate varies along a single pipe).

2. On the mold, adjust the wall thickness and the size of the gap around the mold. For small-diameter molds, the gap is uniform all around; for large-diameter molds, the gap is uniform on the left and right sides, with the top larger than the bottom.

3. Adjust the nozzle angles inside the vacuum shaping machine and the spray box to ensure uniform cooling of the pipes.

4. Adjust the sizing sleeve (groove and water hole) to ensure even water discharge.

5. The caliber can be adjusted to control the wall-thickness stretching ratio, thereby reducing the impact of the melting hammer on the pipe wall thickness.

6. The PE pipe manufacturer disassembles the mold, checks whether the screws inside the mold are loose, and retightens them.

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