HTV solid silicone molding is currently the silicone industry's most common and most widely used silicone products production process, our daily life of silicone buttons, silicone bracelets, silicone watches, mobile phone covers, silicone kitchenware, silicone MATS, ice grid, cake molds are basically the use of solid silicone as raw materials molding completed.

The main production process of molded silicone rubber products is the processing process of silicone rubber raw materials formed into products by heating and pressurizing in the closed mold cavity. In order to prevent the production of unqualified products in the molding process, the working temperature, mold, time, placement, weight, etc., can determine whether to make a qualified product.

1, silicone products molding, silicone rubber after large pressure pressing, because of the cohesion of the elastomer can not be eliminated, silicone rubber in the molding molding, often produce extremely unstable contraction (shrinkage of silicone, because of different rubber species and differences), must go through a period of time, in order to ease stability. Therefore, at the beginning of the design of silica gel products, regardless of the formula or mold, it is necessary to calculate carefully with comprehensive consideration, otherwise it is easy to produce silica gel products size instability, resulting in a decline in product quality.

2, silica gel is a hot-soluble thermosetting elastomer, and plastics are hot-soluble cold solid. Silicone due to different types of silicone vulcanizing agent, its molding curing temperature range, there is also a considerable gap, and even silicone rubber vulcanization can be affected by climate change, indoor temperature and humidity. Therefore, the production conditions of silicone products need to be adjusted moderately at any time, otherwise, it may produce differences in product quality.

3, silica gel products are made of silica gel raw materials after mixing machine rubber mixing as raw materials, in the rubber mixing according to the characteristics of the required silicone rubber products to design the formula, and set the required product hardness and the required type of silicone rubber vulcanizing agent. Silicone rubber products are molded by rubber plate vulcanizing machine. After forming the product, the final flash treatment is carried out to smooth the surface treatment of the product without burrs.

4, silicone rubber molding vulcanization process will appear sticky mold, warping, bubbles, not fully vulcanized white spots and other problems, need to adjust the mold temperature, exhaust time, mold pressure, etc. These are the details that should be paid attention to in the molding process.

Common grade HTV silicone rubber，pls check MYD7125