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The cause of ripples on the surface of two - color injection moulds

Two-color injection mold in the production process, there will be ripples in the surface of the mold products, so what are the reasons for this phenomenon?
1. Injection pressure. Material temperature is high, can reduce the injection pressure, otherwise increase the injection pressure.
2. Low temperature of two-color injection mold. Increase mold temperature or injection pressure.
3. The gate is too small. Proper extension pouring.
4. The injection speed is too slow. Increase injection speed.
5. Low material temperature, high reams. Increase the material temperature appropriately.
Two - color injection mold in the production and processing of ripples, to find out the specific reasons, and then take the corresponding measures to remedy the solution.

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