Blog: Liquid Silicone Rubber Injection Molding

Hochuen actualizes high speed liquid silicone rubber injection molding. Learn about the quality medical devices produced in our class 10k clean rooms today.

What is Liquid Silicone Rubber Injection Molding?

Liquid silicone rubber injection molding is a process of creating different high-volume parts. These parts are tough. Hochuen has many medical-related machines for injection molding.

Before understanding the liquid silicone rubber injection molding, we should first explain what LSR is. Liquid silicone is a type of silicone with an extreme purity that can stay stable in harsh conditions and weather. This silicone is preserved by platinum to improve its effectiveness. It can resist a high temperate level, whether it is heat or cold. As a result, the handling process of these silicones is also pretty hard. To complete a liquid silicone rubber injection molding process, one needs to keep its temperature at a low level while mixing it in a high dispersive manner. After continuing all these, the silicone rubber will be put into a chamber with high heat that will eventually harden the rubber.

Liquid silicone rubber injection molding is a necessary procedure in a lot of fields. Many businesses use this silicone type in order to create parts and tools of the highest quality. Hochuen is an institute that is using liquid silicone rubber in order to manufacture medical equipment and devices. As they provide top-notch results, the products also come out in excellent shape. Hochuen also manages the whole liquid silicone rubber injection molding process with its multiple pieces of machinery.

What is Silicone Rubber?

In case you did not know, silicone rubber is a special silicone type that takes up to 30% of the silicone family. It is actually a kind of polymer with high viscosity and elasticity. Another good quality of silicone rubber is that it remains intact with very high and low temperature, making it suitable for liquid silicone rubber injection molding.

Not to mention, the silicone rubber has a really low wettability due to the methyl that stays in them. It makes this silicone hydrophobic. Because of this trait, they are suitable for a lot of applications in different ways.

Hochuen makes use of these special features of silicone rubber and produces parts using them. As a hydrophobic object, they are good to be used on electric insulations. It also makes them a suitable material for the lab in a chip technology.

Necessary Equipment

To complete the liquid silicone rubber injection molding, one needs to collect and use a set of equipment. They appear useful in different parts of the process. We put them in the list below:

Injector- As the name of the procedure suggests, you need to inject the liquid silicone into the pumping device. So, to control the pressure and injection rate, you will need an injector tool.

A catalyst- A catalyst is needed for the mixing process.

Metering Units- A group of metering units is necessary to pump the silicone along with the catalyst.

Supply Drum- It is the chamber where the materials get mixed. The silicone and catalyst get into the supply drum after exiting the metering unit.

Mixers- It is to integrate and mix the elements into the supply drum.

Nozzle- It controls and keeps the mixing and molding process balanced.

Mold Clamp- A clamp to hold the mold during the whole liquid silicone rubber injection molding.

The liquid silicone rubber injection molding is a heavily beneficial procedure in terms of creating some durable, stable, and top-quality tools. Silicone rubber has a high viscosity that makes them easy to channel through thin pipelines. So, the process is also easy to perform.

While using this method, you can get the result fast and repeat the procedure easily. Not to mention, the whole thing is automated, so there is no room for flaws. The molds that come out afterward are ready to use for production.