| 摘要 |
PURPOSE:To unify the outer skin and a core material directly by one metal die without an adhering process, by puring a synthetic resin material for a core material into the outer skin manufactured by melting and molding a synthetic resin material through reaction injection molding for curing. CONSTITUTION:The outer skin is manufactured by melting and molding polyvinyl chloride paste or thermoplastic synthetic powder through a rotary molding method and slash molding method. As to the foregoing synthetic resin powder, polyethylene, polypropylene, polystyrene and ABS resin can be used. A compound molded body, whose aimed outer skin and a core material are unified directly by one die throughout whole processes, is obtained by puring and curing a synthetic resin material for a core material into a die for melting and molding, which formed the foregoing outer skin, through reaction injection molding. In addition to the above, it is possible to pour and cure the synthetic resin material for the core material through the reaction injection molding by sticking the outer skin into a separate die. |
