Composite material vehicle door anti-collision beam and preparation method thereof
A composite material, anti-collision beam technology, applied in doors, vehicle parts, transportation and packaging, etc., can solve the problems of low structural strength of parts, high mold cost, poor impact resistance, etc. Lightweight effect, increased energy absorption effect
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Embodiment 1
[0049] Such as figure 1 and figure 2 As shown, this embodiment 1 discloses a composite door anti-collision beam, the anti-collision beam includes: anti-collision beam main body 1, core rigid body 2, anti-collision beam connecting bracket 3 and structural adhesive layer 4.
[0050] Such as figure 2 and Figure 4 As shown, the anti-collision beam main body 1 is a linear cylindrical structure with openings at both ends and closed circumferential sides, that is, the cross-section of the anti-collision beam main body 1 is a closed cavity structure;
[0051] The anti-collision beam main body 1 is made of one or more of continuous fiber composite materials including: glass fiber, carbon fiber, aramid fiber, and ultra-high molecular weight polyethylene fiber. Form 1 is formed by rolling a laminated sheet of continuous fiber composite material, wherein the laminated sheet material of continuous fiber composite material is composed of several layers of continuous fiber composite m...
Embodiment 2
[0063] This embodiment 2 discloses a preparation method of a composite material car door anti-collision beam, and the preparation process is as follows:
[0064] Step 1: Prepare the main body 1 of the anti-collision beam;
[0065] (1) Prepare a prepreg, immerse the continuous carbon fiber reinforcement in the resin matrix to form a prepreg unidirectional tape, and the single layer thickness of the prepreg unidirectional tape is 0.17mm;
[0066] (2) Prepreg cutting and stacking, the prepreg unidirectional tapes are cut into eight layers of prepreg unidirectional tapes according to the directions of +45° and -45° respectively from the axial direction of the roll, and the +45° and -45° are sequentially laid up at intervals to form a sixteen-layer continuous carbon fiber reinforced body prepreg laminated structure;
[0067] (3) Ironing and heating, place the cut and laminated prepreg laminated structure between the heating plates and iron and heat, the heating temperature is 45°C...
Embodiment 3
[0077] This embodiment three discloses a preparation method of a composite material car door anti-collision beam, and the preparation process is as follows:
[0078] Step 1: Prepare the main body 1 of the anti-collision beam;
[0079] (1) Prepreg is prepared, the continuous carbon fiber reinforcement and the continuous carbon fiber reinforcement are respectively immersed in the resin matrix to form a carbon fiber prepreg unidirectional tape and a glass fiber prepreg unidirectional tape, and the carbon fiber prepreg unidirectional tape The thickness of the single layer is 0.17mm, and the thickness of the glass fiber prepreg unidirectional tape is 0.32mm;
[0080] (2) Prepreg cutting and stacking, the carbon fiber prepreg unidirectional tape or the glass fiber prepreg unidirectional tape is cut in the direction of +45° or -45° from the rolling axis, respectively, And the carbon fiber prepreg unidirectional tape and the glass fiber prepreg unidirectional +45° and -45° are sequen...
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Abstract
Description
Claims
Application Information
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