1) The wall thickness should be as uniform as possible, and the draft angle should be large enough
2) The transition part should be smooth and gradually transition to prevent sharp corners and sharp edges, especially PC+gf products must not have gaps
3) The gate and runner should be as wide and thick as possible, and the gate position should be set according to the shrinking and condensing process. If necessary, a cold material well should be added
4) The surface of the mold should be smooth and low in roughness (preferably less than 0.8)
5) Vent hole. The tank must be sufficient to exhaust air and melt gas in a timely manner
6) Except for PET, the wall thickness should not be too thin, generally not less than lmm.

Issues that should be noted in the injection molding process of transparent plastic products:
1) The injection pressure is generally high to overcome the defect of high melt viscosity, but too high pressure will generate internal stress and cause demolding difficulty and deformation.
2) The injection speed should generally be low when the mold filling is satisfied. It is best to use slow, fast, and slow multi-stage injection.
3) Pressure holding time and molding cycle, in the case of satisfying the product's mold filling, without the occurrence of depressions or bubbles; it should be as short as possible to minimize the time that the melt stays in the barrel.
4) The screw speed and back pressure should be as low as possible under the premise of satisfying the plasticizing quality, in order to prevent the possibility of undesirable drop.
5) The mold temperature and the cooling of the product have a great influence on the quality, so the mold temperature must be able to accurately control its process. If possible, the mold temperature should be higher.