| 摘要 |
PURPOSE:To produce efficiently a housing wherein a frame body formed by facings is filled with a foamed material, by loading a core material, which has been foamed and molded, into the hollow section of a frame body formed by facings, and injecting a foamable synthetic resin into the space between the frame body and the core material thereby integrally molding them. CONSTITUTION:After the core material 4 that has been foamed is loaded into the space defined by frame bodies 5a, 5b comprising the facings for example of metals, synthetic resins, wood or the like, the foamable synthetic resin 2 is injected into the space between the core material 4 and the frame bodies 5a, 5b thereby integrally molding the frame bodies 5a, 5b and the core material 4. Thus, the cooling rate of the foamed body and the productivity can be increased more than the conventional case wherein a foamable resin is injected directly into the space defined by the frame bodies 5a, 5b and is foamed. |
