Seven Key Points of Liquid Silicon Rubber Die Design

There are seven key points in the design of liquid silicon rubber mould such as Liquid Silicone Rubber for Architectural Molding:

1. The shrinkage rate

While the LSR does not shrink inside the mold, they often shrink between 2.5 percent and 3 percent after demoulding and cooling.

2. The parting line

Determining the location of the parting line is one of the first steps in designing a silicon rubber like Foundry Casting Silicone Rubber injection mold.

3. The exhaust

With the injection of LSR, the air trapped in the mold cavity is compressed when the mold is closed, and then is discharged through the aeration channel as the mold is filled.

4. The injection point

The cold runner system is used when pressing LSR. The advantages of this adhesive can be maximized and the production efficiency can be raised to the maximum.

5. Release

By vulcanizing the liquid silicone rubber easily adheres to the metal surface, the product's flexibility will make it difficult to mold.

6. Mold materials

For die plate with mould cavity, it should be made of nitrided or tempered steel to ensure high temperature resistance.

7. Temperature control

On the large mould, it is economical and effective heating method when the oil temperature is controlled.

We supply all kinds of silicone rubber such as rtv2 Silicone Rubber for Architectural Molds. Welcome new and old customers to consult us.

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