The problems and countermeasures related to scaling and injection molding of thermoplastic elastomer release agents

The problems and countermeasures related to scaling and injection molding of thermoplastic elastomer release agents:

Question 1:Poor demolding performance, the product is difficult to demold. Poor demoulding performance refers to the difficulty in removing molded products from the mold or complete deformation during the removal process. Materials with adhesive properties are prone to this problem, but it can be improved by adding elastic demoulding agents to the material or coating the mold with elastic demoulding agents before molding. Insufficient cooling (insufficient curing) of molded products can also lead to such problems, so it is necessary to cool them thoroughly. In addition, unreasonable mold design can also become a reason for difficulty in demolding, especially in areas such as injection ports and injection channels that are easy to stick to the mold. Increasing the extraction angle of the injection port and widening the injection channel are very effective. 

reason:1. Insufficient cooling 2. Material adhesion 3. Unreasonable mold structure design

Countermeasure:1. Extend cooling time, reduce mold temperature 2. Replace materials and use release agents 3. Improve mold design

Question 2:Scaling and retention of sediment at the edge of the mouth shape. Scaling is the accumulation of sediment at the edge of the mouth during extrusion molding, which can be composed of either extruded materials or special additives. As a countermeasure, reducing the amount of lubricant can effectively improve the characteristics of materials, as excessive addition of lubricant itself is one of the factors that cause scaling. The method of coating the mouth with Teflon can also reduce the formation of scale. In addition, damp materials should be avoided from being used. 
reason:1. Material moisture 2. Characteristics of the material itself
Countermeasure:1. Dry thoroughly before molding. 2. Apply lubricant and Teflon coating to the mouth shape to modify the material