What is silicone Compression Molding Process?

2018-09-11

This method of fabrication is designed for creating product in cavities by placing preform rubber into a heated mold. A pre-measured amount of material (e.g., granules, powders, or pellets) is deposited into the open heated cavity. A heated plunger closes the cavity and applies pressure, usually 15,000 to 20,000 psi. As the material melts, it is driven into all parts of the cavity. The heat and pressure is maintained until the material has cured. Then the cavity is opened and the part is removed. There can be various heating system and multiple cavities employed.

This process requires the use of silicone vulcanizing machine

It is a relatively low-cost method to produce curved or intricate parts. It consists of two plates to form the cavity. This, in turn, uses a press to force the raw material to melt into the form of the respective mold cavity.

Some benefits to using a compression molding process are as follows:

1. Economical method for short or start-up production runs.
2. Low to medium production rates.
3. Suitable for mass production.
4. Can accommodate small parts as well as larger or more complex shapes.
5. Short set-up time.
6. Low waste, providing that the mold cavity is correct.
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Production Challenges for the Compression Molding Method
1. Flash can be a problem.
2. Mold surface finish can affect material flow, including part removal time.
3. Keeping the cavities clean and identification of both halves of the mold cavity.
4. Curing of the product.

Type of Products

phone case ,wristband,gift label,USB case ,key chain, zip puller, cup coaster,swimming cap,watchband,kitchen supplies,adilt products,oil seal

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