To provide a method for manufacturing a bumper fascia which has short joint process time and long open time, on the condition that desired rigidity is achieved even when the weight is reduced, and good appearance can be achieved.SOLUTION: A method for manufacturing a bumper fascia includes a pre-joint step of preparing a laminate where a first member (2) containing at least any one of metal and a resin, a solid adhesive (3) containing an amorphous thermoplastic resin that is at least any one of a thermoplastic epoxy resin and a phenoxy resin as a main component, and a second member (5) which is joined to the first member and contains a resin are disposed in this order, wherein the first member is a reinforcement rib and/or bracket, the second member is a bumper fascia body, an epoxy equivalent of the amorphous thermoplastic resin is 1,600 or more, or the amorphous thermoplastic resin does not contain an epoxy group, and a fusion heat of the amorphous thermoplastic resin is 15 J/g or less.SELECTED DRAWING: Figure 4
【課題】軽量化を図った場合であっても所望の剛性を実現するととともに、良好な外観を実現し得ることを前提に、接合プロセス時間が短く、かつオープンタイムが長い、バンパーフェイシアの製造方法を提供すること。【解決手段】金属及び樹脂の少なくともいずれかを含む第1部材(2)と、熱可塑性エポキシ樹脂及びフェノキシ樹脂の少なくともいずれかである非晶性熱可塑性樹脂を主成分とする固形接合剤(3)と、第1部材と接合され、樹脂を含む第2部材(5)とが、この順に配置された状態の積層体を準備する接合前工程を含み、第1部材が補強リブ及び/又はブラケットであり、第2部材がバンパーフェイシア本体であり、非晶性熱可塑性樹脂のエポキシ当量が1,600以上であるか、又は前記非晶性熱可塑性樹脂がエポキシ基を含まず、非晶性熱可塑性樹脂の融解熱が15J/g以下である。【選択図】図4
METHOD FOR MANUFACTURING BUMPER FASCIA
バンパーフェイシアの製造方法
2023-07-07
Patent
Electronic Resource
Japanese