| 摘要 |
PURPOSE: A resin mold manufacturing method for injection molding is provided to reduce manufacturing hours by manufacturing a cavity mold and a core mold with resin, and to produce forming articles by hardening and reinforcing through heat treatment of resin. CONSTITUTION: A master mold(10) is manufactured with plywood and resin, and a reinforcing part(20) is manufactured and processed. The reinforcing part is placed on the master mold, and the first heat treatment is performed at 45 deg.C for 48 hours by injecting heat-resisting epoxy between the master mold and the reinforcing part. A cavity mold(40) is finished by removing the master mold, and a core mold is formed. The second heat treatment is performed at 150 deg.C for 5 hours by combining the cavity mold and the core mold. The cavity core is separated from the core mold, and the molds are processed for injection molding. A hot runner is installed in the cavity mold to stream resin actively during injection-molding.
|
