To provide a bumper beam for automobile which facilitates press molding and is excellent in energy absorption property.SOLUTION: A bumper beam for automobile is composed of a laminate of a carbon fiber-reinforced part composed of at least two layers of carbon fiber-reinforced resin layers (A) and a fiber-reinforced part composed of at least one layer of a fiber-reinforced resin layer (B), in which each of the layers (A) is composed of a thermoplastic resin and a continuous carbon fiber having orientation in one direction, at least one layer of the layers (A) is a carbon fiber-reinforced resin layer having an orientation angle of α, at least another layer of the remaining layers (A) is a carbon fiber-reinforced resin layer having an orientation angle of β (the orientation angle is an angle formed by the orientation angle of the continuous carbon fiber to the longitudinal direction of the bumper beam. 45°≤α≤75°. -45°≥β≥-75°.) The layer (B) is composed of a thermoplastic resin and a discontinuous reinforcement fiber, and at least one surface of two surfaces in the lamination direction of the laminate is formed of a carbon fiber-reinforced part.SELECTED DRAWING: Figure 1

    【課題】プレス成形が容易でエネルギー吸収性に優れる自動車用バンパービームの提供。【解決手段】少なくとも2層の炭素繊維強化樹脂層(A)からなる炭素繊維強化部と少なくとも1層の繊維強化樹脂層(B)からなる繊維強化部との積層体からなる自動車用バンパービームであって、層(A)のそれぞれは熱可塑性樹脂と一方向に配向性を有する連続炭素繊維からなり、層(A)のうちの少なくとも1層が配向角がαの炭素繊維強化樹脂層であり、残りの層(A)のうちの少なくとも1層が配向角がβの炭素繊維強化樹脂層であり(配向角はバンパービームの長手方向に対して連続炭素繊維の配向方向がなす角度。45°≦α≦75°。−45°≧β≧−75°)、層(B)は熱可塑性樹脂と不連続強化繊維とからなり、積層体の積層方向における2つの表面のうちの少なくとも一方の表面が炭素繊維強化部によって形成されている。【選択図】図1


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    Title :

    BUMPER BEAM FOR AUTOMOBILE


    Additional title:

    自動車用バンパービーム


    Contributors:

    Publication date :

    2020-08-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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