PROBLEM TO BE SOLVED: To provide a load energy absorption composite material that can be manufactured with high productivity and has a closed cross-sectional shape, and to provide a method for manufacturing the same.SOLUTION: A method for manufacturing a cylindrical load energy absorption composite material which includes a skeleton member that is formed of a core material formed from a first fiber and a first resin impregnated in the core material and has an opened cross section and an external wall member that is formed of a second resin being a thermoplastic resin and a second fiber kneaded with the second resin and has a closed cross section covering the outside surface and an opening of the cross section the skeleton member and, and has a hollow portion defined by an inner wall of the cross section of the skeleton member and an inner wall of the external wall member covering the opening of the cross section of the skeleton member includes: polymerizing a monomer impregnated in the core material in a mold to mold the skeleton member; and injecting the fiber-reinforced thermoplastic resin to the periphery of the skeleton member to mold the external wall member.SELECTED DRAWING: Figure 3
【課題】高い生産性にて製造可能な閉じ断面形状を有する荷重エネルギー吸収複合材及びその製造方法を提供する。【解決手段】第1繊維からなる芯材及び芯材に含浸された第1樹脂からなり且つ開いた横断面を有する骨格部材と、熱可塑性樹脂である第2樹脂及び第2樹脂に混練された第2繊維からなり且つ骨格部材の外側面及び横断面の開口部を覆う閉じた横断面を有する外壁部材と、を備え、骨格部材の横断面の内壁と、骨格部材の横断面の開口部を覆う外壁部材の内壁と、によって画定される中空部を有する、筒状の荷重エネルギー吸収複合材の製造方法において、芯材に含浸させたモノマーを型内重合することによって骨格部材を成形し、繊維強化された熱可塑性樹脂を当該骨格部材の周囲に射出して外壁部材を成形する。【選択図】図3
METHOD FOR MANUFACTURING LOAD ENERGY ABSORPTION COMPOSITE MATERIAL AND LOAD ENERGY ABSORPTION COMPOSITE MATERIAL
荷重エネルギー吸収複合材の製造方法及び荷重エネルギー吸収複合材
2017-08-03
Patent
Elektronische Ressource
Japanisch
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