MOLDING METHOD FOR FIBER REINFORCED THERMOPLASTIC SYNTHETIC RESIN

摘要

PURPOSE:To easily obtain excellent moldings and also to enable automation by forming a mold for preforming by drawing working of a metallic plate enriched in malleability such as aluminum and iron and heating the prescribed number of sheets of sheetlike prepreg material of this mold for preforming in a state wherein the prepreg materials are pinched and preforming them and finally press-molding them while utilizing a mold for main molding. CONSTITUTION:A mold for preforming is formed by drawing working of a metallic plate enriched in malleability such as ultraplastic aluminum plate and iron plate. The fitting holes 9 are provided to the prescribed positions. The sheetlike prepreg materials 6 are laminated so that the prescribed orientation direction of fiber is held. These are pinched by the bottom force 8a and the top force 8b for preforming. The formed preforming unit is introduced into a heating furnace and heated in the prescribed conditions according to matrix material and preforming is performed. When preforming is completed, preforming moldings 15 are quickly set in a mold 16 for main molding in a state wherein the moldings 15 are pinched by the bottom force 8a and the top force 8b for preforming. Press-molding is preformed in the prescribed conditions.