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2023

Mold processing time these points must go to pay attention to

Mold production and processing, generally batch formation, so we are very important to the mold injection molding technician method as well as the process, if the processing, not according to the specified requirements, will damage the injection mold.

1, raw materials generally do not need to dry, individual cases of 80 ℃ baking 2 hours;

2, the molding temperature range is large, heating melting and curing speed, so the molding cycle is generally shorter; temperature parameters: barrel temperature of 200 ℃ or so, the material temperature is too high easy to silver wire, and material temperature is too low will make the transparency poor;

3, mold temperature control: mold temperature is generally 50-80 ℃;

4, GPPS mobility is very good, beer molding does not require high pressure, in order to avoid too large and increase the internal stress of the rubber parts - may lead to cracking;

5, the injection speed is appropriately high in order to weaken the water folder pattern, but because of the injection speed by the injection pressure is greatly affected by the high speed may lead to phi or out of the mold sticking to the mold as well as the top of the top of the top of the white top cracking and other issues;

6, appropriate back pressure: if the back pressure is too low, the screw rotation is easy to overflow into the air, the barrel of the material density is small, the plasticizing effect of the glue particles is not good, affecting the apparent quality of the rubber parts glass fiber reinforced PS-GF30, barrel temperature of 180 ~ 275, mold temperature of 20 ~ 80, molding shrinkage of 0.1 ~ 0.2. Density 1.29/cm3.