| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a high-pressure nitrogen gas cannot be impregnated into a thin wall molding due to slow build up of the high-pressure nitrogen gas injected into a molten resin in a mold cavity. SOLUTION: A gas supply system of an injection molding equipment for gas assist molding is composed by installing a high-pressure gas generator and a main tank close to the injection molding equipment; wherein the gas supply system comprises, a nitrogen gas separator to separate nitrogen gas from air, a gas tank to store the nitrogen gas prepared by the gas separator, a high-pressure gas producer to pressurize the nitrogen gas supplied from the high-pressure gas producer, and an injection control valve prepared in a pipeline between the main tank and a gas introductory part of the injection molding equipment. COPYRIGHT: (C)2005,JPO&NCIPI
|
