ABS plastic is a widely used engineering plastic, but its products often suffer from color differences. This is caused by multiple reasons.
Firstly, the equipment is one of the main reasons for the color difference of ABS plastic materials. Insufficient force when ejecting the product can lead to uneven distribution of plastic in the product, resulting in more significant color difference.
Secondly, injection molding is also an important factor. The design of the demolding structure of the mold is unreasonable or the position selection is incorrect, the demolding slope is not enough, the mold temperature is too high or the mold cavity is poorly ventilated, the sprue wall or cavity surface is rough and uneven, the nozzle is not aligned with the mold feed port, or the nozzle diameter is greater than the feed port diameter, all of which will directly affect the color difference of ABS plastic material.
The injection molding process and raw materials also have an impact on the color difference of ABS plastic material. The temperature of the barrel is too high or the injection volume is too large, the injection pressure is too high or the holding and cooling time is too long, and the release agent is insufficient, all of which can affect the quality and color of the plastic. Therefore, injection molding factories need to pay attention to these issues during the production process to produce high-quality and uniformly colored ABS plastic products.