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Do you really know silica gel? Silica gel factory xiaobian take you to explore the molding process of silica gel products

2019-05-27

Speaking of liquid silica gel, those who do not have much contact with it may say that, in the final analysis, it is still "plastic", almost like injection molding. Yes, "silica gel", "plastic" name have "glue", but the essence of the process or a little different oh. And contact with silica gel more students, referred to all kinds of "ice cream, full of praise, cough, we do not run astray, our theme is" silica gel technology exploration ", not "Oriental culture peep", today by me to lead the old driver to fly a while!


Silica gel definition:


Silicone, Silicone English name, the main composition is sio2, avirulent insipidity, stable chemical properties, by adding other elements, can be divided into organic Silicone and inorganic silica gel, and mould of the Silicone used by industry generally refers to the rubber containing silicon atoms, referred to as the silicon rubber, hereinafter referred to as silica gel, again classification does not strictly belong to organic Silicone classification. The silicone used


We often come into contact with seals in our work, such as various waterproof and leakproof sealing rubber rings, keys and so on.


Food grade silica gel is used in a variety of food uses, such as baby pacifiers or some adult products


Medical grade silicone is used in some medical devices



Today, we mainly focus on the first type of industrial-grade sealing process exploration, which we contact most in our work. That is, we often contact with the silicone rubber process. Other kinds of processes are similar, but the production environment and safety level requirements are different.


Silica gel process classification


According to the physical properties of silica gel, silica gel process can be divided into the following categories:


One is used for solid silica gel molding, common seals are molded, is the most widely used in the silica gel industry. Attached is the photo of the moulded mold (left below), looking at whether it looks like a waffle machine, the following two comparison, don't be silly confused.



One is used for liquid silicone injection molding, medical, food grade products are basically the second process manufacturing. The pacifier is its typical representative.



There is also an extruded form in which the finished product is used only in a tubular shape (hollow product).


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