Poor surface gloss of injection molded products refers to the appearance of uneven, dull, and blurry gloss on the product surface, which can affect the aesthetics and quality of the product and reduce its competitiveness. The following are the reasons and solutions for poor surface gloss of injection molded products:
1. Plastic material issues
If the plastic material is uneven or contains a large amount of bubbles and impurities, it can lead to poor surface gloss of the injection molded product. The solution is to use high-quality plastic materials and conduct sufficient pre-treatment to ensure the uniformity and purity of the material.
2. Unreasonable injection molding parameters
Injection molding parameters have a significant impact on the appearance quality of products. If the injection temperature is too low, the pressure is insufficient, and the injection time is too long and other factors are unreasonable, it can lead to poor surface gloss of the injection molded product. The solution is to adjust the injection molding parameters to ensure that the parameters such as temperature, pressure, and time are within a reasonable range.
3. Mold design issues
The design and manufacturing of molds also have an important impact on the surface quality of injection molded products. If the surface of the injection mold is rough or the design is unreasonable, it will affect the surface gloss of the injection molded product. The solution is to carry out reasonable mold design and manufacturing to ensure that the surface of the mold is flat and smooth, and to avoid surface defects.