Liquid silicone molding process needs to go through what steps

In the manufacturing process of liquid injection molding, the main products are obvious. The traditional working process focuses on pressurized impact mixing, which consists of a mechanical mixing process that combines two components together.

The main steps involved in the liquid silicone rubber forming process:

1, silicone rubber sealing ring manufacturers introduce the uncured silicone in the container, divided into compounds A and B, it is connected to the pumping system. The barrel holds the base forming material, and barrel B contains the catalyst. A unit of measurement automatically releases two substances in a constant ratio of one to one, as well as any pigment additive.

2, injection molding program can be divided into: custom automatic injection molding machine and injection molding set each work to provide the corresponding lens size. Templates and pistons, adjust and close molds, have temperature, set pressure with customer specifications according to injection speed and cycle time.

3. After installation, the machine will heat the mold to the appropriate temperature and apply the appropriate clamping force. The mold closes the injector, pump and supply of the mating machine. Injection mechanism and push the material into the cavity.

4. A combination of heat and pressure is applied to the liquid silicone rubber to solidify the material until solidification. At the completion of the cycle, the mold is opened and part of the flicker can be automatically or deleted by a worker. The mold is then closed and the process is repeated.

5, silicone rubber sealing ring manufacturers introduce the liquid silicone rubber molding process: after taking out items from the mold, the post-molding process may include de flashing, post-curing, inspection and packaging.

What are the common types of oxidants used in silicone rubber

Silicone rubber is a synthetic polymer with alternating Si-O chain framework. It uses crosslinking with the addition of a catalyst, an organosilicon peroxide catalyst that was used for early organosilicon, still in use today, is a by-product of an amino acid residue in rubber and degassed peroxides.

Type of silicone rubber oxidant

Silicone rubber sealing strip manufacturers introduce platinum catalyst silicone is becoming more and more popular, not only no reaction, but also fast processing, can be in the form of liquid injection. Silicone utilizes A platinum treatment system, where parts of the kit are usually called A and B parts mixed at A predetermined ratio to form A compound that can be cured.

Platinum-cured silicone resins are available as high concentration rubber, sometimes referred to as synthetic, as well as liquid silicone rubber. Silicone has many chemicals, including water, isopropyl alcohol, some acids, oxidants, and ammonia to meet the requirements of high temperature chemical properties. Liquid silicone rubber can be formulated to improve its chemical resistance to specific chemical solutions.

Silicone rubber properties

antifungal

When rubber is used in any warm, moist environment, its properties must be resistant to mold or fungal diseases. Although silicone rubber does not kill bacteria, it is not a nutritious fungus and also adversely affects them.

Tensile strength

Liquid silicone products manufacturers introduce the typical tensile strength range: high concentration of silicone rubber, the typical tensile strength range from 4 to 12.5 mpa. Fluorosilicone rubber, typically tensile strength from 8.7 to 12.1 mpa. Liquid silicone rubber - Typical tensile strength ranges from 3.6 to 11 mpa.