What is the reason why it is difficult to remove the edge of the Automotive Wiring Harness Protection Sleeve after molding?

In the production process of Automotive Wiring Harness Protection Sleeve, the edge removal of Cable Sleeve products is a very important process. Edge removal is to trim the burrs of Cable Sleeve products. But sometimes due to some factors of the processing technology and the raw material itself, it is not easy to remove the edge after the product is formed, and a little carelessness will break or leave a burr. So what are the factors that make it difficult to remove the edge of the Automotive Wiring Harness Protection Sleeve after it is formed?

First, the quality of the rubber material, the molding thickness is too thick
In order to reduce the production cost, some Automotive Wiring Harness Protection Sleeve factories use some relatively cheap rubber materials for production. The cheap rubber materials have insufficient tear strength and poor toughness, which makes the products prone to cracking after molding. In addition, too thick molding thickness also has a certain impact on edge removal.
2. The vulcanization temperature is too low or the vulcanization time is too short
The vulcanization temperature is too low or the vulcanization time is too short to have a certain influence on the self-demolition edge. The Cable Sleeve is very flexible when it is not fully vulcanized, so it is not easy to separate the burr from the product when the edge is removed.
3. The vulcanization temperature is too high or the vulcanization time is too long
The temperature is too high or the vulcanization time is too long when the Automotive Wiring Harness Protection Sleeve is formed, resulting in numbness or brittleness after the product is formed, which affects the subsequent edge removal.
4. Mold problem
The mold parting is unreasonable when designing the mold, and the self-demolition opening is not sharp when making the mold. In addition, the wear of the mold during the production process or too many times of sandblasting will cause the self-dismantling opening to be rough, which will affect the self-dismantling performance of the cable bushing product after molding.
The problem of removing the edge of the Automotive Wiring Harness Protection Sleeve is very important. It is related to the quality and production efficiency of the products of the Automotive Wiring Harness Protection Sleeve factory. Therefore, the mold must be strictly controlled during the production process, and the thickness should not be too large during molding. Temperature and time control, and finally the rubber problem. Don`t choose bad rubber because of cheap price. Cheap rubber has insufficient tear strength and poor toughness, which will affect the demoulding performance of the molding, making it difficult for the Automotive Wiring Harness Protection Sleeve to Problems such as cracking during edge removal or edge removal.