A kind of carbon fiber composite box body and preparation method thereof
A composite material, carbon fiber technology, used in container handles, transportation and packaging, internal accessories, etc., can solve problems such as unsightly pits, inconvenient handling, and heavy weight.
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[0111] The present invention also provides a kind of preparation method of casing, comprises the following steps:
[0112] a-1) providing a first carbon fiber fabric, a second carbon fiber fabric, a support member, a cushion material, a thermosetting resin and an optional aramid fiber fabric;
[0113] a-2) Lay the cushion material on the bottom of the female mold, and place the first carbon fiber fabric, the optional aramid fiber fabric, the second carbon fiber fabric and the first carbon fiber fabric from The bottom of the female mold starts to be placed in the mold in sequence, the support member is placed in the mold groove where the aforementioned fabric is placed, and the aforementioned fabric is wrapped on the support member;
[0114] a-3) cover the positive mold on the mold obtained in step a-2), connect the injection pipe and the exhaust pipe, inject the thermosetting resin into the mold cavity, and close the injection pipe when it is full;
[0115] a-4) heating the m...
Embodiment 1
[0151] Raw material: T300-3K carbon fiber twill fabric, 200g / m 2 , 2 layers; T700-12K carbon fiber twill fabric, 480g / m 2 , 2 layers; circular aluminum tube, wall thickness 0.2mm, inner diameter 400mm, cross-section is also circular, inner diameter Φ25mm; polyurethane pad, thick 5mm.
[0152] First, cut the two kinds of carbon fiber fabrics and polyurethane pads into the required size; use 120-grit sandpaper to polish the aluminum tube once, then clean it with acetone, dry it in an oven at 80°C for 30 minutes, and finally pre-coat it with a layer of glass fiber epoxy The dip wraps the aluminum tube tightly. Clean the mold with a rag, and apply PMR release agent twice. Place the urethane pad in the mold cavity and follow the figure 2 In the way shown, the carbon fiber fabric is laid in the female mold, the layup sequence is 3K / 12K / 12K / 3K, and a small amount of spray glue is used to shape the fabric during the layup process. The aluminum tube is placed in the groove of the ...
Embodiment 2
[0156] Raw material: T300-3K carbon fiber twill fabric, 200g / m 2 , 2 layers; T700-12K carbon fiber twill fabric, 480g / m 2 , 2 layers; aramid fiber fabric, plain weave, 200g / m 2 ; Hexagonal aluminum tube, wall thickness 0.3mm, side length 200mm, circular cross section, inner diameter Φ25mm; polyurethane pad, thickness 5mm.
[0157] First, cut the carbon fiber fabric, aramid fiber fabric and polyurethane pad into the required size; use 120-grit sandpaper to polish the aluminum tube once, then clean it with acetone, dry it in an oven at 80°C for 30 minutes, and finally cover it with 2 layers of glass fiber Epoxy prepreg wraps the aluminum tubing tightly. Clean the mold with a rag, and apply PMR release agent twice. Place the urethane pad in the mold cavity and follow the figure 2 In the way shown, the carbon fiber fabric and the aramid fiber fabric are laid in the female mold, the layup sequence is 3K / aramid / 12K / 12K / 3K, and a small amount of spray glue is used to shape the f...
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Abstract
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