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Fiber-reinforced foam sandwich structure composite material locomotive driving cabin and manufacturing method thereof

A fiber-reinforced, sandwich structure technology, applied in the direction of railway car body, railway car body parts, transportation and packaging, etc., can solve the problems of corrosion, heavy weight, easy to be affected by the environment, etc., to achieve large development space, low cost, The effect of broad market application prospects

Active Publication Date: 2018-02-23
ZHUZHOU LINCE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the cabin structure of the locomotive cockpit is made of metal. The disadvantages of this structure are: heavy weight, easy to be corroded by the environment, and easy to deform due to welding during the forming process.
And the locomotive cockpit cabin body structure of composite material has not been reported yet

Method used

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  • Fiber-reinforced foam sandwich structure composite material locomotive driving cabin and manufacturing method thereof
  • Fiber-reinforced foam sandwich structure composite material locomotive driving cabin and manufacturing method thereof
  • Fiber-reinforced foam sandwich structure composite material locomotive driving cabin and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] The thickness of the upper skin and the lower skin is 3mm.

[0063] The preparation method of fiber-reinforced foam sandwich structure composite locomotive cockpit embodiment 1:

[0064] 1) Preparation of the front roof of the cabin of the locomotive cockpit

[0065] Clean the surface of the front roof mold, and then wipe the release agent on the surface of the front roof mold of the cockpit for 3 times. After drying, brush the prepared transparent gel coat evenly on the front roof mold, and control the thickness of the gel coat at 0.4 About mm, after the gel coat gel is cured, first lay a layer of twill carbon fiber fabric, and then lay down 9 layers of multi-axial carbon fiber fabric / PET foam / 10 layers of multi-axial carbon fiber fabric in sequence, prepare flame-retardant epoxy resin, and inject it through VARI process After the glue is cured at room temperature for 24 hours, the front roof mold is disassembled, and the front roof of the locomotive cockpit is taken ...

Embodiment 2

[0073] The thickness of the upper skin and the lower skin is 6mm.

[0074] The preparation method of fiber-reinforced foam sandwich structure composite locomotive cockpit embodiment 2:

[0075] 1) Preparation of the front roof of the cabin of the locomotive cockpit

[0076] Clean the surface of the front top mold, and then wipe the release agent on the surface of the front top mold 3 times. After drying, brush the prepared transparent gel coat evenly on the mold, and control the thickness of the gel coat to about 0.4mm. After the clothing gel is cured, first lay a layer of twill carbon fiber fabric, and then lay 9 layers of multi-axial glass fiber fabric / phenolic foam / 10 layers of multi-axial glass fiber fabric in sequence, prepare flame-retardant epoxy resin, and inject glue through VARI process. After curing at room temperature for 24 hours, the mold was disassembled, and the front roof of the locomotive cab was taken out.

[0077] 2) Preparation of the bottom plate of the...

Embodiment 3

[0084] The thickness of the upper skin and the lower skin is 8mm.

[0085] Example 3 of the preparation method of the locomotive cockpit with fiber-reinforced foam sandwich structure composite material:

[0086] 1) Preparation of the front roof of the cabin of the locomotive cockpit

[0087] Clean the surface of the front top mold, and then wipe the release agent on the surface of the front top mold 3 times. After drying, brush the prepared transparent gel coat evenly on the front top mold, and control the thickness of the gel coat at about 0.5mm After the gel coat gel is cured, first lay a layer of twill carbon fiber fabric, and then lay 9 layers of carbon fiber-glass fiber blended fabric / PMI foam / 10 layers of carbon fiber-glass fiber blended fabric in sequence, and prepare flame-retardant epoxy resin. Glue was injected through the VARI process, and after curing at room temperature for 24 hours, the front roof mold was disassembled, and the front roof of the locomotive cockp...

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Abstract

Provided is a fiber-reinforced foam sandwich structure composite material locomotive driving cabin, including a front roof (1) and a bottom plate (2). Both of the front roof and the bottom plate comprise an upper skin (4), a lower skin (5), and a foam core material (6). The upper skin, the lower skin, and a reinforcing layer are made of a fiber-reinforced composite material. Resin in the upper skin, the lower skin, and the reinforcing layer are inflaming retarding epoxy resin. Reinforced fabrics in the upper skin, the lower skin, and the reinforcing layer are multiple layers stacked together.The multi-layer reinforced fabric is made of one of a carbon fiber fabric, a glass fiber fabric, a carbon fiber-glass fiber hybrid fabric or a combination of more than two. Thickness of the upper skinand the lower skin is 3 mm to 8 mm. The driving cabin has substantial weight reduction effect, and effectively saves energy. In the manufacturing method of the locomotive driving cabin, a vacuum assisted forming process is used to manufacture a driving cabin body. The method is low in cost, easy in integrated forming, and a complex component assembling process is simplified.

Description

technical field [0001] The invention relates to high-speed rail transit equipment, in particular to a locomotive cabin of fiber-reinforced foam sandwich structure composite material and a preparation method thereof. Background technique [0002] In the field of high-speed rail transit, composite materials are becoming an increasingly important class of materials. In addition to being used as internal equipment and decorative materials, they are also widely used in load-bearing structures. Components made of composite materials, weight Light, high strength and high rigidity, it is an ideal structural part. Most of the composite material products are molded parts, and the manufactured products do not need to be machined, so the production efficiency is high and the manufacturing cost is low. Composite materials are widely used in rail transit vehicles, which play an important role in reducing the weight of the carriage, reducing noise and vibration, improving safety and comfo...

Claims

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Application Information

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IPC IPC(8): B61D17/00B29C70/36
CPCB29C70/36B61D17/00
Inventor 谭艳施峰尹力罗乐廖庆华张虎
Owner ZHUZHOU LINCE GRP
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