| 摘要 |
PURPOSE:To provide a gas-injection molding method, which can seal a gas filler hole formed to a moled form in the case of molding, can obtain a product, in which the gas filler hole is sealed, and can prevent the going-in-and-out of water and the going-in-and-out of dust, a small bug, etc., into a product from the gas filler hole and in which no trouble on sanitary is generated. CONSTITUTION:A gas is injected into a molten resin 3 injected into a mold 2 from a nozzle 1 from a gas filler hole 4, a small amount of the resin of a material of the same kind as said molten resin 3 are injected from a resin filler hole 5 juxtaposed to the gas filler hole 4 after gas injection, and a gas filler hole 6 formed to the resin in the mold is closed. |
