Injection molding die, and method of manufacturing molded product
AssigneeKumi Kasei Co., Ltd.
InventorEtsuo Okahara
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Abstract
An injection molding die of the invention is used in a molding method of causing a surface of a resin molded product during molding to be brought into close contact with both cavity surfaces of a pair of dies by setting surface temperatures of cavity surfaces of the pair of dies to be higher than a deformation temperature of a resin to be molded. The injection molding die of the invention is capable of increasing the volume of the cavity along with operation of injecting the resin to a cavity formed by the pair of dies and reducing the volume of the cavity along with contraction of the resin by cooling.
Claims6
An injection molding die being used in a molding method of causing a surface of a resin molded product during molding to be brought into close contact with both cavity surfaces of a pair of dies by setting surface temperatures of cavity surfaces of the pair of dies to be higher than a deformation temperature of a resin to be molded,
- the injection molding die being capable of increasing a volume of the cavity along with operation of injecting the resin to a cavity formed by the pair of dies and reducing a volume of the cavity along with contraction of the resin by cooling.
Dependencies are inferred from the claim text.