The reason for the punching pattern of transparent PC products may be that during the injection molding process, the plastic flow is not uniform, resulting in the irregular arrangement of plastic molecules, forming the punching pattern. The solution to this problem is as follows:
Adjust the injection molding process parameters: you can adjust the temperature, pressure, speed and other parameters of the injection molding machine to make the plastic flow more uniform and reduce the appearance of punch lines.
Replace the mold: If the injection molding process parameters can not be adjusted to solve the problem, you can consider replacing the mold. The design and manufacturing quality of the mold has a great impact on the quality of the product, and the replacement of high-quality molds can reduce the appearance of punch lines.
Optimize product structure: In the product design stage, the product structure can be optimized to reduce the appearance of punch lines. For example, adding some bumps or depressions to the surface of the product can make the plastic flow more uniform and reduce the appearance of punch lines.
Use special materials: Some special materials can reduce or avoid the appearance of punch lines. For example, adding some additives such as impact agents or plasticizers can improve plastic fluidity and reduce the appearance of punch lines.
It is important to note that different products and production environments may require different solutions. Therefore, when solving the problem of punching grain, it is necessary to analyze and deal with it according to the specific situation. At the same time, in the production process, it is necessary to strictly control the quality, discover and solve problems in time, and ensure that the product quality meets the requirements.
If the transparent PC product has punch lines (flow marks), you can try the following solutions:
1. Adjust the injection molding process: adjust the injection molding temperature, injection molding pressure and injection molding speed and other parameters to obtain a better melting state and reduce the punch grain.
2. Replace the appropriate mold: The use of mold with fewer punch grain problems can improve product quality.
3. Increase the cooling time: extend the cooling time, make the product fully solidify and shrink, reduce the production of punching grain. 4. Use high-quality raw materials: Choose high-quality PC raw materials to reduce the production of punch lines. 5. Adjust the product structure: according to the design of the product, adjust the structure of the product appropriately to reduce the impact of the punch grain.
6. Add impact grain agent: Add impact grain agent to PC raw material, which can reduce the generation of impact grain.
Please note that specific solutions may vary from case to case and it is recommended to experiment and test before determining a solution.