Liquid silicone rubber injection molding has been more and more widely used in recent decades, including common infants and children, daily necessities, consumer electronics; There are also uncommon applications in medical parts, automotive supplies, cable power and energy. During the production of liquid silicone rubber injection molding, some operators or quality inspectors may report that the product has too many burrs. What is the matter and how to solve it?

When there are too many burrs (i.e. flash) in the production process of liquid silicone rubber injection molding, the following aspects should be analyzed and eliminated:

1. Insufficient clamping force.

2. Excessive glue injection.

3. Excessive glue injection pressure.

4. Mold temperature is too low.

5. The rubber viscosity is too low or vulcanization is too slow.

6. Mold processing accuracy is not enough.

Through the step-by-step confirmation and analysis of the above conditions, the corresponding operation modes of liquid silicone rubber injection molding are adjusted to find the root causes and solve them thoroughly. The corresponding solutions are as follows:

1. Check the clamping force of the device according to the mold structure and size to ensure that the clamping force is sufficient.

2. Reduce the glue injection.

3. Reduce the glue injection pressure.

4. Raise the mold temperature.

5. Increase the viscosity of the compound or speed up the curing time.

6. Check the machining accuracy of the mold, and test and analyze the mold.