About the six major processes of silicone products.

The following is to introduce the six major processes of silicone products:

1.Molding

Die molding, this production process is the most common. Mainly completed by the mold, mold shape determines the shape of the silicone product. Molded silica gel products are usually through the high temperature mold in the addition of vulcanizing agent solid silica gel raw materials through the vulcanization machine pressure, high temperature sulfur into solid molding, molded silica gel hardness is usually 30°C-70°C This production process is relatively simple, suitable for all silicone products.

2.Injection (injection)

This process is relatively high quality requirements, is the combination of liquid silicone and plastic.

The product has good thermal stability, cold resistance, excellent electrical insulation performance, and does not produce toxic substances when burning.

Therefore, it has become an irreplaceable material in the production design of health products, automobiles, baby products, medical supplies, diving supplies, kitchen utensils and seals.

3.Extrusion

Extrusion molding, extrusion silicone products are usually extruded by extrusion machine silicone molding, generally extrusion silicone shape is long, tubular can be cut at will, extrusion art to make the product shape is relatively single, mostly strip. Silicone tubes are widely used in medical and mechanical equipment fields. It can also be used as a buffer in packaging materials.

4. Rolling

Silicone rubber is kneaded and mixed with silica black, silicone oil, etc., and then rolled out sheet.

The physical and mechanical properties of the film made by calendering are obviously different from those of the horizontal and vertical films, which is called calendering effect. The specific performance is that the longitudinal tensile strength of the film is greater than that of the horizontal, the transverse elongation of the film is greater than that of the vertical, and the longitudinal shrinkage of the film is greater than that of the horizontal.

The calendering effect is the result of the orientation of macromolecule and acicle and sheet compound in the calendering process. The size of the calendering effect is related to the composition of the compound, calendering temperature, speed and speed ratio.

For larger products, such as silicone sheets, silicone sheets.

5. Infusion

Perfusion mold or perfusion mold operation method: perfusion mold or perfusion mold, is used for relatively smooth or simple products, there is no mold line to save labor and time, that is, the product or model you want to copy, surrounded by rubber plate or glass plate, the vacuum of silicone directly into the product above, after the silicone dry molding, take out the product, the mold is formed (Note: The injection mold is generally made of silica gel with relatively soft hardness, so that the demoulding is easier and will not damage the products inside the silicone mold. It is a combination of solid and liquid, using products such as mobile phone covers, luggage covers and so on.

6. Coating

Rapid vulcanization; Strong adhesion; Good fluidity, easy to defoam. The use of platinum complex catalysis, non-toxic, no odor; Excellent thermal stability and cold resistance (use temperature -60℃ ~ 200℃) after forming with good permeability, heat resistance, and a certain tensile strength;

Excellent anti-skid performance; No pollution; Low hardness; The planting adhesive is firmly bonded. High tear strength; High transparency; Good tensile properties. Wear resistance, wash resistance, high temperature resistance; High three-dimensional level, fabric smooth, soft, flexible excellent texture, good elasticity. Washable and dry cleaning resistant.

When applied to the cloth, it has the effect of anti-aging. Such as silicone gloves, rain shoes and so on.