What are the common molding processes in silicone products ？

As an environmentally friendly raw material, silica gel is loved by the majority of people for its various superior properties. Its softness and non-toxicity are widely used in industrial sealing and medical devices. Especially its working temperature: -60 to 250 degrees Celsius is unmatched by plastic. Using silicone to wrap metal or plastic parts to form some new properties makes the product soft and hard. For example, silicone-coated steel kitchen utensils are favored by consumers for their environmental protection. Silicone itself can also be used as a toy for infants and children. Silicone is different from plastic. Silicone is a thermo forming material. The raw material of silicone is cured at a certain temperature to form the product we want.

So what are the common molding processes in silicone products ?

1. Extrusion molding process

Just like we squeeze toothpaste, the extrusion head is also the cross-sectional shape of the product. The products formed by this process are generally strip-shaped products, and the product cross-sections can be various. For example, rectangular strips, circular silicon tubes, etc.

2. Epoxy process

The raw material of silica gel is in a liquid state, and the raw material is packed in a syringe, and the raw material is dropped onto the mold by a machine, and heated and vulcanized to form. It has a feature that a product can be dripped with multiple colors according to requirements. So this kind of craft is mostly for making handicrafts. For example, multi-color silicone bracelets, silicone mobile phone cases with various color patterns, etc.

3. Solid state hot pressing forming process

This process uses the temperature and pressure of the hydraulic press to vulcanize the product with the help of a mold. This process is relatively low in cost, high in output, and widely used. It is mostly used for monochrome silicone products. It can also be applied to two-color and double-hardness products or multi-color and multi-hardness products. It can also be applied to plastic-coated and metal-coated products.

4. Liquid injection molding process (liquid silicone product production process)

The equipment required for this process includes a silicone injection machine and a press machine. Its raw material is water-thick, divided into two components, A and B. Its principle is: use the press machine to press the raw materials of A and B components into the barrel of the injection machine according to the ratio of 1:1, and then press it into the cavity of the hot mold through the nozzle to form.

Jinyu machine focus primarily on epoxy process and solid state hot pressing forming process. There are Automatic Dispensing Machine, Fully Automatic Embossing Machine, Hydraulic Machine, and other Silicone Machine or PVC Machines.