Common problems and solutions for extrusion equipment of solid wall pipe

Solid wall pipe extrusion production lines may encounter various common problems. Here are some common problems and solutions:

Extruder blockage:

Possible cause: The screw or feed port of the extruder may be blocked by the material, resulting in poor extrusion.

Solution: Stop the machine to clean the blocked material, check whether the particle size and water content of the raw material meet the requirements, and adjust the extruder parameters to ensure good extrusion.

Unstable extrusion speed:

Possible cause: The temperature, pressure or speed control of the extruder is unstable, or the raw material supply is uneven.

Solution: Adjust the temperature, pressure and speed control of the extruder to ensure its stability. Check the raw material supply system to ensure uniform raw material supply.

Uneven pipe wall thickness:

Possible cause: Poor design of the extrusion die or mold, uneven raw material flow.

Solution: Replace or correct the extrusion die or mold to ensure that it is reasonably designed and the flow channel is unobstructed. Adjust the extruder parameters to optimize the fluidity of the raw material.

Poor appearance quality of the pipe:

Possible cause: Wear or contamination of the extrusion die, too high or too low extrusion temperature, poor raw material quality.

Treatment method: Clean or replace the extrusion die to ensure that its surface is smooth and free of contamination. Adjust the extruder temperature and control it within the appropriate range. Check the quality of the raw materials to ensure that it meets the standards.

Insufficient pipe strength:

Possible reasons: Improper raw material formulation, inappropriate extrusion temperature or extrusion pressure, and too fast extrusion speed.

Treatment method: Optimize the raw material formulation and increase or adjust the proportion of additives to improve the strength of the pipe. Adjust the extruder parameters to ensure that the extrusion temperature, pressure and speed are suitable for the pipe requirements.

Extrusion line speed is too fast or too slow:

Possible reasons: Incorrect extruder parameter settings, unstable raw material supply, and unreasonable pipe cooling method.

Treatment method: Adjust the extruder parameters to adapt to the required extrusion line speed. Ensure that the raw material supply system is stable and optimize the cooling method of the pipe.

Poor surface finish of the pipe:

Possible reasons: Rough surface of the extrusion die or mold, impurities in the raw material, and too high or too low extrusion temperature.

Treatment method: Clean or replace the extrusion die or mold to ensure that its surface is smooth. Improve the purity of the raw material to avoid the influence of impurities on the surface of the pipe. Adjust the extruder temperature to suit the requirements of the pipe.

When dealing with these problems, appropriate measures should be taken according to the specific situation, and regular inspections and maintenance should be maintained during the operation of the extrusion production line to ensure the stability and quality of pipe production.