Injection molding processing technology for freezing drawer of refrigerator

The invention discloses an injection molding processing technology of a refrigerator freezing drawer in the technical field of refrigerator freezing drawer processing, and the injection molding processing technology comprises the following steps: material selection: selecting high-quality polystyrene as a raw material, then cleaning the raw material, and removing dust and impurities on the surface of the raw material; drying: drying the raw materials cleaned in the step 1 to ensure that the raw materials do not contain water; softening: heating and softening the raw materials dried in the step 2; first-stage injection: during raw material injection, the first-stage injection metering is 60-90 mm, the injection pressure is 60-90 MPa, the injection rate is 55-85 mm/s, the melt temperature during injection is 190220 DEG C, and cooling is performed for 10-22 seconds after first-stage injection is completed; second-stage injection: starting second-stage injection after the cooling time of the first-stage injection