The high temperature vulcanized silicone rubber molding process is the most common process in the manufacture of silicone rubber products. The following describes several issues that should be paid attention to in the high temperature vulcanized silicone rubber molding.

1. When the silicone product is formed, the silicone rubber is pressed by a large pressure, and the cohesive force prepared by the elastomer cannot be eliminated. Different and different), it takes a period of time to stabilize. Therefore, at the beginning of the design of silicone products, regardless of the formula or mold, careful calculation and comprehensive consideration are required, otherwise the size of the silicone products will be unstable, resulting in low product quality.

2. Silica gel is a hot-melt thermosetting elastomer, while plastic is hot-melting and cold-setting. Due to the different types of silicone vulcanizing agents, the temperature range for molding and curing of silica gel is also quite different. Even the vulcanization of silicone rubber may be affected by climate changes and indoor temperature and humidity. Therefore, the production conditions of silicone products need to be adjusted appropriately at any time. If not, there may be differences in product quality.

3. Silicone products are made of silicone rubber compounded by an internal mixer as raw materials. The formula is designed according to the characteristics of the required silicone rubber products during rubber mixing, and the required product hardness and requirements are determined. The type of silicone rubber vulcanizing agent required. Silicone rubber products are molded by a rubber flat vulcanizer. After the product is formed, the flashing treatment is finally carried out to make the surface of the product smooth and free of burrs.

4. In the process of molding and vulcanization of silicone rubber, there will be problems such as sticking, warping, air bubbles, and white spots of incomplete vulcanization. It is necessary to adjust the mold temperature, exhaust time, and mold pressure.