How are Rubber Products Molded?

How are rubber products molded? Here is the clearest detailed explanation of the rubber molding process. Including text and pictures. Step by step.

Stage 1:

Heat and warm up the mold to a certain temperature.

Stage 2:

Open the mold and put a small piece of conditioned rubber into the cavity.

Rubber molding process: Demoulding
Rubber molding process: Demoulding

Stage 3:

The upper and lower mold plates are combined, and the rubber pieces are vulcanized and formed under high temperature and pressure.

Rubber molding process: vulcanized
Rubber molding process: vulcanized

Stage 4:

Demoulding, the molded rubber products are sent to the trimming workshop.

rubber molding process loading
rubber molding process loading

Example: Compression-Molded Rubber Button

Step 1: Prepare quantitative small dice of rubber.

Prepare quantitative small dice of rubber
Prepare quantitative small dice of rubber

Step 2: Put the small dice of rubber into the cavities one by one.

Put the small dice of rubber into the cavities
Put the small dice of rubber into the cavities

Step 3: After heating the molds to 180°, combine the upper and lower mold plates. The rubber pieces are formed against the inner wall of the mold under high temperature and pressure and complete the molding process after 10 minutes.

rubber molding process: heating and cooling
rubber molding process: heating and cooling

Stage 4: Inject air into the cavities to de-mold the products.

rubber molding process: demold the product
rubber molding process: demold the product

Stage 5: Trimming and packing

Trimming and packing
Trimming and packing
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