| 摘要 |
PROBLEM TO BE SOLVED: To realize a product having high joining strength with good precision without necessitating or increasing joint working by heating the joint part of two partially molded bodies to make it a softened or molten state and injecting kneaded material between the partially molded bodies and performing molding of this part and mutually joining the partially molded bodies. SOLUTION: A kneaded material consisting of a ceramics powder and an organic binder is injected to the inside (a) of a mold and molded. A partially molded form 1 becoming a part of a molded body 3 is molded and a partially molded body 2 is similarly molded. These partially molded bodies 1, 2 are fitted to a mold for joining as a part of the mold so as to form the molded body 3. The kneaded material is injected to the inside (b) and injection molding of this part is performed and simultaneously the partially molded bodies 1, 2 are joined and unified to finally obtain the molded body 3. In the case of performing injection molding, the end parts 4, 4' containing the joint face of the partially molded bodies 1, 2 are heated at the temperature not lower then the softening temperature of the partially molded bodies 1, 2 and below the boiling point of the organic binder. Therefore, even a molding having a complete shape is easily obtained as the product having high precision without necessitating a complex mold. |
