Key points of silicone product molding technology

1, silicone products molding, after a large pressure, due to the elastomer is available within the force can not be eliminated, in the molding away from the mold, often produce very unstable shrinkage (silica gel shrinkage rate, due to different kinds of glue and there are differences), must be after a period of time, in order to slow and stable. Therefore, when a silicone product is designed at the beginning, regardless of the formula or mold, it is necessary to carefully calculate the coordination. If not, it is easy to produce unstable product size and low product quality.

2. Silicone is a hot-soluble thermosetting elastomer, while plastic is hot-soluble and cold-cured. Silica gel due to the different types of sulfide, the molding and curing temperature range, there is a considerable gap, and even due to climate change, indoor temperature and humidity. Therefore, the production conditions of silicone products need to be adjusted at any time, if not, the quality of the products may be different.

3. Silicone products are mixed rubber made from silicone raw materials after rubber mixing in an internal mixer. During rubber mixing, the formula is designed according to the characteristics of the required rubber products, and the required product hardness is determined. The product is molded by a rubber flat vulcanizer. After the product is formed, the final flash treatment is carried out to make the surface of the product smooth and free of burrs.