1.The utility model relates to an amorphous material with low moisture absorption, which does not need to be fully dried and is not easy to be decomposed, but has a large thermal expansion coefficient and is prone to generate internal stress.

2.High material temperature, high mould temperature and low injection pressure are recommended, and prolonged injection time is beneficial to reduce internal stress and prevent shrinkage and deformation.

3. available forms gate, sprue arc connection with plastic parts, to avoid damage to the plastic parts when destination gate. Draft, ejection evenly. Plastic pieces of uniform wall thickness, the best without insert, insert should be preheated.