Liquid silicone rubber injection molding is a common silicone process widely used in various fields. It solidifies liquid silicone rubber into the desired product shape through a series of process steps by injecting it into the mold.
Firstly, preparation work is very important. Before injection molding, it is necessary to select suitable liquid silicone rubber materials and mix them according to the requirements. The key to this step is to ensure the accuracy of the quality and ratio of the rubber material.
Next, it is necessary to prepare the mold. Mold is a key tool in injection molding, which determines the shape and size of the final product. Molds are usually made of metal or silicone and have the required cavities and surface textures. Before use, it is necessary to clean and coat the mold to ensure smooth injection process and smooth surface of the product.
Then, inject the prepared liquid silicone rubber material into the injection machine. The injection machine is a key equipment for controlling the injection process, which has a temperature and pressure control system to ensure that the liquid silicone rubber can flow evenly into the mold. During the injection process, it is necessary to set appropriate injection parameters based on the shape and size of the product, such as temperature, pressure, and injection time.
After the injection is completed, the liquid silicone rubber begins to solidify. Curing can be achieved through natural curing or assisted curing. Natural curing refers to placing the injected mold at room temperature and allowing the silicone gel to cure on its own. Assisted curing, on the other hand, accelerates the curing process through heating or UV irradiation.
Finally, after curing is completed, the finished product can be taken out of the mold. This step requires careful operation to avoid damaging the product or mold. Once removed, further processing is required, such as removing burrs or defects that may remain on the surface of the product, and conducting quality inspections to ensure the quality of the product.
In summary, the liquid silicone rubber injection molding silicone process includes preparation work, mold preparation, injection, curing, and subsequent processing steps. Each step requires professional skills and careful operation to ensure the quality and performance of the final product. With the continuous advancement of technology, the injection molding process of liquid silicone rubber will be more perfect and widely used in future development.