DISCHARGE METHOD OF GAS IN DIE, AND DISCHARGE METHOD-APPLIED MOLDING DIE

摘要

PROBLEM TO BE SOLVED: To provide a discharge method of gas in a die, in which the gas is discharged while restraining the gas from flowing into a cavity, and to provide a molding die to which the discharge method of gas in the die is applied. ! SOLUTION: A die internal space 15 comprising a material supply line 13 on which an injection port 12 of a molding material 11 and a gas discharge port 30 are arranged and a cavity 14 connected to the material supply line 13, is divided along a flow of the molding material 11 in a shielding position on the downstream side of the gas discharge port 30 and on the upstream side of the cavity 14 so that the molding material 11 is injected into the material supply line 13 from the injection port 12 and the gas in the material supply line 13 on the upstream side of the shielding position is not made to flow into the cavity 14 but is sent to the outside through the gas discharge port 30. Then, the divided state of the die internal space 15 in the shielding position is relea