The problem of edge removal of silica gel products is very important, it is related to the quality and production efficiency of silica gel products factory products, so in the production process to strictly control the mold.

In the process of natural rubber production, the disassembly of silica gel products is a very important process, and the disassembly is to trim the rough edges of silica gel products clean. But sometimes because of some factors of processing technology and raw material itself, the product is not easy to disassemble after molding, and a little carelessness will break or residual burrs. So what are the factors that lead to the difficult edge removal of silica gel products after molding?

First, the quality of rubber material, forming thickness is too thick

In order to reduce the production cost, some silica gel manufacturers use some relatively cheap rubber for production. The cheap rubber has insufficient tearing strength and poor toughness, which leads to the phenomenon of rupture after molding. In addition, the forming thickness is too thick to deedge also has a certain effect.

Two, curing temperature is too low or curing time is too short

Too low vulcanization temperature or too short vulcanization time has a certain influence on self-disassembling edge. Silicone rubber products are not completely vulcanized when the flexibility is very strong, so it is not easy to make the burr and product separation in edge removal.

Three, curing temperature is too high or curing time is too long

When silica gel products are formed, the temperature is too high or the vulcanization time is too long, resulting in numbness or brittle after the product is formed, which has an impact on the subsequent edge removal.

Four, mold problems

When designing the mold, the mold is unreasonable, and the self-removal mouth is not sharp when making the mold. In addition, excessive wear or sandblasting times of the mold in the production process lead to coarse self-disassembly mouth, which affects the self-disassembly performance of silicone rubber products after molding.

In a word: Silica gel products open boundary problems is very important, it relates to the silica gel products factory product quality and production efficiency, so in the process of production have to be strict control to the mold, molding thickness don't too big as well as to the time molding curing temperature and time control, and at last the sizing problem, don't covet price cheap and choose the bad rubber, cheap rubber tear strength and toughness is poor, It will affect the demoulding performance of molding, causing problems such as difficult to disassemble or rupture of silica gel products when disassembling.