The invention discloses an integrally-formed carbon fiber spoke and a preparation method thereof. A carbon fiber core body and a first metal piece and a second metal piece at the two ends of the spoke are prepared, the centers of the two metal pieces are provided with axial through holes, the through holes are matched with the carbon fiber core body, and the end of the first metal piece is provided with an annular boss; the carbon fiber core body penetrates through the through holes of the first metal piece and the second metal piece, and the first metal piece and the second metal piece are arranged at the two ends of the carbon fiber core body; the carbon fiber core body and the metal pieces at the two ends are wound and coated by using the carbon fiber prepreg to form a semi-finished product; and the wound and coated semi-finished product is putted into a forming mold for heating and forming. The metal pieces are wound and coated by the carbon fiber prepreg so that a sandwich structure is formed between the metal pieces and the carbon fiber material to enlarge the bonding interface between the spoke body and the inner and outer surfaces of the metal pieces at the two ends, the bonding force between the spoke body and the metal pieces at the two ends is greatly improved, and it is ensured that the spoke body and the metal pieces cannot slip off.
本发明公开一种一体成型碳纤维辐条及制备方法,制备碳纤维芯体及制备辐条两端的第一金属件和第二金属件,两金属件中心轴向通孔,该通孔与碳纤维芯体适配,其中第一金属件的端部具有环形凸台;将碳纤维芯体从第一金属件和第二金属件的通孔穿过,使第一金属件和第二金属件置于碳纤维芯体的两端;用碳纤维预浸料缠绕包覆碳纤维芯体和两端的金属件形成半成品;将缠绕包覆好的半成品放到成型模具里加温成型。本发明采用碳纤维预浸料缠绕包覆金属件,使金属件和碳纤维材料间形成三明治结构来增大辐条本体与两端金属件内外表面的结合界面,大幅度提高辐条本体与两端金属件的结合力,确保辐条本体和金属件间不会滑脱。
Integrally-formed carbon fiber spoke and preparation method thereof
一体成型碳纤维辐条及制备方法
2021-05-25
Patent
Electronic Resource
Chinese
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