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PVC profile manufacturers tell the reasons for cracks in PVC profiles

2023-12-22 15:03

PVC profiles in the production process often appear bubbles, cracks and pitting and other problems, these problems are often related to the following reasons:

1. Raw material quality problems: The raw material quality of PVC profiles directly affects the quality of the final product. If the raw materials contain impurities, uneven mixing or high water content, it is easy to cause problems such as bubbles, cracks and pitting.

Improper temperature control: In the production process, temperature control is a very important part. If the temperature is too high or too low, it will affect the fluidity and melting of PVC, resulting in bubbles, cracks and pitting and other problems.

Improper pressure control: In the production process, pressure control is also crucial. If the pressure is too large or too small, it will cause problems in the extrusion or injection molding process of PVC materials, such as bubbles, cracks and pitting.

4. The mold design is unreasonable: the design of the mold also has a great influence on the quality of the product. If the mold design is unreasonable, such as poor runner design, uneven structure, etc., it will cause problems in the injection molding process of PVC materials.

5. Unreasonable production process parameters: the choice of production process parameters will also affect product quality. For example, improper selection of parameters such as extrusion speed and cooling speed in the extrusion process can easily lead to problems such as bubbles, cracks and pitting.

The technical level of the operator is not high: the technical level of the operator is also very important for the control of product quality. If the operator is not familiar with the production process, improper operation or inaccurate adjustment, it is easy to cause PVC materials to produce bubbles, cracks and pitting.

To sum up, the problems of bubbles, cracks and pitting in the production process of PVC profiles are often related to the quality of raw materials, temperature control, pressure control, mold design, production process parameters and the technical level of operators. In order to solve these problems, it is necessary to improve the quality of raw materials, reasonably control temperature and pressure, optimize mold design, reasonably select production process parameters, and strengthen the operator's

Explore the impact resistance of plastic profiles

PP plastic profiles have good mechanical properties of materials at the same time, how to achieve aging resistance and transparency?

Explore the impact resistance of plastic profiles

PP plastic profiles have good mechanical properties of materials at the same time, how to achieve aging resistance and transparency?

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