Causes of indentation in EVA mold processing

1. EVA mold dent. The causes of dents are:
(1) Mold cooling is not sufficient, and insufficient cooling time will cause serious deformation.
(2) This situation will also occur when the internal pressure of the mold is insufficient.
(3) The thickness of each part of the product is different. In this case, we will generally have corresponding treatment methods: reduce the temperature of the cylinder and the mold temperature, force cooling in the place of dents, fill the upper edge in the place of dents, and control the difference in the thickness of the design products.
2. EVA mold products whitening. The causes of product bleaching are as follows:
(1) Excessive conformity pressure.
(2) Poor release. In this case, the overall treatment method: when designing the plastic mold, we should pay attention to the inclination of the release mold to be enough. When making the mold, we should ensure that the cavity of the mold is smooth and clean, and the injection pressure should be immediately reduced in real-time processing.