Silicone products manufacturer questions about silica gel production are summarized
in organic silicon mould pressing craft adopted by high temperature solid silicone rubber industry manufacturers in the majority of products on the market, due to the products adopt mold high temperature vulcanization molding, common problems. Yellowing phenomenon, tenacity is insufficient and so on, the silicone products manufacturer summarized the phenomenon of production when the total for your reference.
one, the production process problems, lead to products appear when in the production of air bubble, the dark grain or transparent yellow and so on phenomenon is a common phenomenon in the silicone products manufacturer, these problems will think of the mould and vulcanization technique, in the aspect of mould temperature has failed to meet the demands of the specified products, local products are not ripe, appear even the color or yellowing phenomenon, the surface of the mold core has defects or invisible to the naked eye of concave and convex mouth cause products are package wind and deformation is more serious, so as far as possible when production mold temperature, the pressure of the machine, vulcanization time reduce the bad phenomena of the product.
2, vulcanizing agent, vulcanizing agent for high temperature curing agent and low temperature curing agent, both with different benefits, the high temperature vulcanizing agent with raw materials for the product stripper is faster when producing, the mold product is quick and efficient products and better resistance to yellow, commonly used in some yellow product requirements higher resistance products use, and high temperature vulcanization agent price is too expensive. But ordinary vulcanizing agent also is a kind of mixture, we commonly used for industrial parts and seal damping products use more the price is relatively cheap, different hardness of products can select different vulcanization agent production, so for reasonable choice when producing vulcanizing agent!
3, raw material, solid silicone rubber raw material material choose different make tensile strength toughness of the products, some products must be made of high tensile material otherwise ordinary raw materials do not out of the product, making products more brittle or directly are not ripe, etc. , and some products must be made of food grade silicone rubber raw material or product may smell problem for a long time, such as supplies of some long-term exposure to the human body must be used to the food grade silica gel products. But for the silicone products manufacturer with these three points must properly can make the best products, many problems are basically out of the above three aspects of all these points.
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