Preparation process of silicone foot pad material

The silicone foot pad materials are available in wet asbestos and blue asbestos. Good heat resistance, alkali resistance, high tensile strength and poor acid resistance. Most asbestos rubber sheets are made of it; blue asbestos not only has good heat resistance, but also has good acid resistance, so it is used to make acid-resistant asbestos. rubber Board. Asbestos board normal use temperature is below 550 degrees. Asbestos tape or asbestos rope can be used for larger diameter low pressure vessels. When using asbestos ropes, water glass is usually impregnated. Such gaskets can also be used for media such as acids and base solvents.

   The silicone foot pad is made of asbestos, rubber and filler. Generally, asbestos fibers account for 60%-85%. According to its matching process, performance and use, there are mainly high pressure asbestos rubber sheets, medium and low pressure asbestos rubber sheets and oil resistant asbestos rubber sheets. Check whether the foaming agent is qualified within a limited period of time; check whether the plasticity of the rubber compound meets the standard, if the plasticity is too low, it should be supplemented with mixing, increase the plasticity to facilitate the hole; check whether the temperature of the mixer is too high. Whether the roll temperature is too high, whether the rubber is burnt. Some rubber compounds whose mixing temperature is too high may be mixed in a small amount or added with a foaming agent; if the parking time is too long, the rubber compound should be re-refined for supplementary processing; and enter the rubber product inside the sealed device. Although these seals are small, they play a major role in ensuring the performance of various devices and facilities, saving materials and energy, and preventing environmental pollution. Widely used in a variety of machinery, instruments, pipelines, household appliances, vehicles and other vehicles, as well as the construction industry. The rubber material of the rubber sealing product should be selected according to the working conditions. For example, the oil-resistant sealing product adopts the nitrile rubber high temperature resistant and corrosion resistant medium sealing products, such as silicone rubber, fluorine rubber, ethylene propylene rubber, acrylate rubber and the like. The production process of the sealed products is mostly the same as that of the model products (see vulcanization). The door and window seals are extruded and then directly vulcanized by a vulcanization tank or continuously vulcanized by a vulcanizer.