The color consistency of injection molded parts is one of the important indicators in the injection molding production process. In order to produce high-quality, consistent-color PEEK injection molded parts, we need to pay attention to the following eight points:
- Special attention should be paid when mixing PEEK plastic to avoid mixing in any impurities or foreign matter. During the mixing process, raw materials should be regularly checked for impurities or foreign matter to ensure the purity of the raw materials.
- Ensure that the PEEK raw materials are dry and the equipment is clean. When changing materials, residues must be thoroughly removed to avoid affecting the performance of the new materials. Drying equipment should be cleaned and maintained regularly to avoid affecting the performance of raw materials due to unclean equipment.
- Pay attention to the quality of the pigment and the mixing method to ensure that the pigment is evenly attached to the surface of the PEEK particles. The quality of the pigment and the mixing method have an important impact on the color consistency of the injection molded parts, so it is necessary to select high-quality pigments and use appropriate mixing methods.
- Reduce the temperature of the melt barrel and nozzle to prevent PEEK rubber from burning. Excessive temperature will cause the PEEK compound to burn and affect the quality and color consistency of the injection molded parts. Therefore, it is necessary to appropriately lower the temperature of the melt barrel and nozzle.
- Reduce the injection pressure and speed parameter values to avoid additive decomposition. Excessive injection pressure and speed will cause the decomposition of additives and affect the quality and color consistency of injection molded parts. Therefore, the injection pressure and speed parameter values need to be appropriately reduced.
- Wipe away the moisture and oil on the surface of the PEEK mold, and use release agent appropriately to maintain good release effect. Moisture and oil on the surface of the mold will affect the demoulding effect of the injection molded parts, so it is necessary to dry the mold surface regularly and use the release agent appropriately.
- Set the process parameters of fiber fillers reasonably and use solvents rationally to improve the plasticizing effect and reduce fiber exposure. The process parameters of fiber fillers and the use of solvents have an impact on the plasticizing effect and fiber exposure. Therefore, it is necessary to set the process parameters reasonably and use appropriate solvents.
- Pay attention to eliminating obstacles in the production process, especially when changing materials, strictly follow the steps, or use the transitional material changing method. Obstacles during the production process will affect the color consistency of injection molded parts, so it is necessary to regularly check and remove obstacles, especially when changing materials, strict steps must be followed or a transitional material changing method must be adopted.
The above are some key considerations on how to produce high-quality, consistent-color PEEK injection molded parts. It is important to follow these steps to ensure a high-quality product that meets the requirements.