Injection molding apparatus and injection molding method

• Main Authors: CHANG, CHE-WEI, CHANG, YUNG-HSIANG, LEE, KUAN-HUA, CHEN, SHIAUNG, TSAI, PI-LIN
• Format: Patent
• Language: Chinese; English
• Published: 16.06.2020
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A injection molding apparatus including a mold and an injection device is provided. The mold includes a fixed portion and a movable portion, wherein a molding concavity is formed between the fixed portion and the movable portion, and the movable portion is adapted to move relatively to the fixed portion, such that a pressure inside the molding concavity is adjusted between a pressurized state and a non-pressurized state. The injection device is adapted to inject a material into the molding concavity, wherein the material includes a supercritical fluid, the supercritical fluid is prevented from gasifying by the pressurized state, and the supercritical fluid is gasifies by the non-pressurized state. In addition, an injection molding method is also provided.