1. Liquid silicone is processed through silicone and adhesive, they are usually used in product applications such as handles, claws, waterproof . Electronic seals etc. The material contacts the product, improves pressure, increases the aesthetics of the product and adds value. Most of the products are exported to developed countries and regions such as USA, Japan and EU. As the soft rubber of liquid silicone elastomer is green raw material and. Because it is environmentally friendly, the material is of concern because it contains phthalates, halogens and 38 SVHC substances under REACH. It complies with ROHS, REACH, NP, EN71, PAHS environmental testing standards, and can meet the environmental requirements of the United States, Japan, the European Union and other developed countries and regions.
2. Liquid silicone elastomer soft rubber according to the physical properties of its product requirements, and according to the appropriate hardness (Shore 10-90A hardness ratio) to obtain appropriate physical properties (such as scratch resistance and zero resistance). Different application possibilities are available for different products.
3. The second type is injected with a soft, elastic silicone rubber filler with an over-injection of adhesive. Due to the inert nature of the liquid organic silicone material,
it has good anti-slip properties and a good feel, which enhances the product's tactile feel and improves grip.
Second, liquid silicone overmolding injection molding process
Liquid silicone injection molding process usually requires a second injection process. (Injection) most of the hard plastic poured into a rolled mold, and then at the appropriate temperature will be injected into the solid rubber parts of liquid silicone resin, and the mold to heat the product. The injection temperature of overmolded shock absorbing coatings varies depending on the solid overmolded rubber material. Depending on the temperature, the compatibility of the hard rubber and the liquid silicone must be considered. The plastic substrate for the encapsulation is usually PC or PA. devices made of aluminum alloys and other materials can also be treated with liquid silicone rubber.
Third, the liquid silicone rubber encapsulation process problems and solutions
1)Lack of glue product left in the air or injected into the glue is not enough.
2)Invert the front, increase the lifting edge to increase the pressure, reduce the injection pressure ;
3)Slow adhesive to choose the right adhesive, whether the substrate is plastic or metal;
4)Injection deformation of the product to reduce the temperature of the mold; use heat-resistant oxygen.
SHENZHEN LIYONGAN SILICONE RUBBER PRODUCTS CO., LTD. is an OEM / ODM manufacturer of liquid silicone products. LiYongAn is committed to research and development of liquid silicone products (Isr) new technology and custom manufacturing of new products, advanced molding technology. For example, fast injection rates, short vulcanization times, unattended equipment and burr-free self-sealing have been used to produce liquid silicone overmolding processes.
SHENZHEN LIYONGAN SILICONE RUBBER PRODUCTS CO., LTD. products include: mother and baby liquid silicone rubber products, liquid medical silicone rubber products, cell phone 3C waterproof accessories, liquid silicone products, machine electronic parts, liquid silicone kitchen products, sealing liquid silicone products, and so on. Especially the liquid silicone encapsulated electronic parts (plastic coated silicone, coated glass or glassware, silicone two-color sets of beer) and other aspects of valuable experience.