RESIN INJECTION MOLDING MOLD

摘要

Disclosed is a mold for resin injection molding that can realize rapid heating or cooling. A resin injection molding mold (1) comprises a cavity mold (2) and a core mold (3) and is produced on a base plate (31) by metal photofabrication. The cavity mold (2) is provided with a cavity warm water circuit (23) for allowing warm water for heating to flow and a cavity cold water circuit (24) for allowing cold water for cooling to flow. The core mold (3) is also provided with a core warm water circuit (33) and a core cold water circuit (34). The core mold (3) comprises an air blowing passage (35) for feeding warm air or cold air into a resin molding part (11) and a suction passage (36) for sucking a gas within the resin molding part (11). The resin molding part (11) side of the air blowing passage (35) and the suction passage (36) is formed of a low-density shaping part (32b) that has a low metallic powder sintered density and is permeable to gas. Warm air or cold air can be blown through the low-density shaping part (32b), whereby rapid heating or cooling of the resin injection molding mold (1) can be realized.