Silicone protective cover is very important for the surface of appearance, so the requirements for appearance black spots, impurities and burr parting line are very strict. However, when many silicone products are customized, there is always a problem of sealing ring, and the product appearance is shiny, resulting in uneven face, which seriously affects the appearance effect, For this kind of imagination, anyone will basically think that this is a defective product, so how to deal with this problem when the appearance of the product is shiny?

The first is the problem of raw materials. The proportion of silicone oil in raw materials exceeds the proportion, and there is a large area of color difference during forming oil pressure. However, this phenomenon will not occur under normal circumstances, and the precipitation will gradually highlight after time. Therefore, for raw materials, liquid silicone glue can be tested for production.

On the other hand, it is caused by the sticking of adhesive paper in the process of rubber mixing and cutting. Generally, when the manufacturers of silicone mobile phone cases cut the raw materials, it is easy to mix the adhesive paper into the raw materials. In this way, the mixed adhesive paper is vulcanized at high temperature on the machine, and melts and sticks to the interior and surface of the product in case of heat. The plastic paper is different from the raw materials of silicone, Silica gel does not fuse with any substance, so the shiny thing on the surface of the product is likely to be plastic paper. This phenomenon leads to a high probability of the surface of the product.

Mixing rubber processing is a very popular processing industry among organic silica gel products. At present, mixing solid silicone rubber materials can be used in many industries around the world, such as electronic parts, mechanical seals, daily necessities and so on. However, there are some problems in the process of solid mixing rubber, which are difficult to control, such as adverse factors of processing, The accuracy and quality of molds and the purity and mixing of raw materials can affect the normal production of products.

In short, rubber mixing is a technical job. Nowadays, many professional technicians still fail to find a mechanical method that can replace the silicone rubber mixing process. The main reason for the silicone key is that the material needs to be clean, environmental friendly and free of impurities. In the process of rubber mixing, the operation mode of rubber and the adjustment of wheelbase may lead to quality problems, For example, high hardness rubber is difficult to disperse, and low-quality silica and high hardness silicone rubber are scattered after mixing.