Cab hood of maglev vehicle and manufacturing method thereof

A manufacturing method and magnetic levitation technology, which is applied to the driver's cab hood of magnetic levitation vehicles and its manufacturing field, can solve the problems of difficult control of product weight deviation, unfavorable light weight of rail traffic, and large changes in product local dimensions, and achieve a significant lightweight effect , product thickness reduction, and the effect of reducing the difference in thermal expansion coefficient

Pending Publication Date: 2020-10-16
BEIJING TIANRENDAOHE NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved in the present invention is to overcome the defect that the driver's cab hood in the prior art is made of glass fiber reinforced plastics, and the product thickness is large, which is not conducive to the lightweight requirements of the existing rail transit industry, thereby providing a composite material driver chamber hood
[0005] Another technical problem to be solved by the present invention is to overcome the unsaturated resin vacuum-assisted injection process used in the production process of the driver's cab hood in the prior art, which leads to large changes in the local size of the product, difficult control of product weight deviation, and A large amount of organic solvents are used in the process, resulting in more VOC generation and poor environmental friendliness, thereby providing a method for manufacturing a driver's cab hood for a magnetic levitation vehicle

Method used

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  • Cab hood of maglev vehicle and manufacturing method thereof
  • Cab hood of maglev vehicle and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] This embodiment provides a specific implementation of the driver's cab hood of a magnetic levitation vehicle, such as figure 1 As shown, it includes: a hood body, the hood body has a foam sandwich layer 1 and a buffer layer arranged on the upper surface and the lower surface of the foam sandwich layer 1, the buffer layer mainly adopts carbon fiber prepreg, specifically Yes, the buffer layer uses 50K tow carbon fiber prepreg.

[0041] On the upper surface of the buffer layer located on the upper surface of the foam sandwich layer 1 of the hood body, a sound-insulating layer 4 is also provided, and the sound-insulating layer 4 is made of sound-insulating and damping material.

[0042] The metal piece 5 on the hood body is embedded in the foam sandwich layer 1 and the buffer layer, and one end of the metal piece 5 protrudes from the outside of the hood body. The part of the metal part 5 embedded in the foam sandwich layer 1 and the buffer layer is respectively connected w...

Embodiment 2

[0047] This embodiment provides a specific embodiment of the manufacturing method of the driver's cab hood of the magnetic levitation vehicle described in Embodiment 1, as figure 2 shown, including the following steps:

[0048] First, cut prepreg and foam are supplied.

[0049] In the second step, the surface layer 9, the impact-resistant layer 8 and the first cushioning layer 2 are sequentially laid in the lower mold.

[0050] The third step is to embed the metal part 5 on the first buffer layer 2 and apply glue;

[0051] In the fourth step, the surface layer 9, the impact-resistant layer 8, the first buffer layer 2 and the metal part 5 are vacuum-bag-cured and molded into a semi-finished product A;

[0052] The fifth step is to lay the second buffer layer 3 in the upper mold, and punch holes on the second buffer layer 3. The specific punching position is: the position opposite to the metal piece 5 on the first buffer layer 2 ;

[0053] In the sixth step, the second buff...

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Abstract

The invention provides a cab hood of a maglev vehicle and a manufacturing method thereof, which belong to the technical field of vehicle body parts of railway vehicles. The cab hood of the maglev vehicle comprises a hood body which comprises a foam sandwich layer and buffer layers which are arranged on the upper surface and the lower surface of the foam sandwich layer and mainly adopt carbon fiberprepregs, and a metal piece which is embedded in the foam sandwich layer and the buffer layers, wherein one end of the metal piece extends out of the hood body. According to the cab hood of the maglev vehicle, glass fiber reinforced plastic is replaced with the carbon fiber composite material; compared with an original hood, the cab hood has the advantages that the weight can be reduced by 15% to30% under the same requirement, and the light weight effect is remarkable; besides, an innovative metal piece embedding technology is adopted, the metal piece is embedded in the buffer layers, a cementing co-curing process is adopted, the metal piece and the product are integrally formed, and the defect that the metal piece is destructively embedded in a traditional glass fiber reinforced plasticcab hood is overcome.

Description

technical field [0001] The invention relates to the technical field of car body components of railway vehicles, in particular to a driver's cab head cover of a magnetic levitation vehicle and a manufacturing method thereof. Background technique [0002] The structure of the driver's cab hood of the maglev vehicle is an integral structure. At present, it is generally made of glass fiber reinforced plastics, and the process adopts a hand lay-up process or an unsaturated resin vacuum-assisted injection process. [0003] However, this process uses unsaturated resin, the temperature resistance of the product is poor, and the thermal expansion coefficient is large, which leads to large changes in the local size of the product, and the weight deviation is not easy to control. In addition, a large amount of organic solvents are used in the process, resulting in more Volatile organic compounds (VOC) are produced, and the environmental friendliness is poor. At the same time, the fiber...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61D17/00B29C70/34B29L31/30
CPCB29C70/342B29L2031/3064B61D17/005
Inventor 吴佩芳释加才让肖云健李发长丁存光刘家鑫
Owner BEIJING TIANRENDAOHE NEW MATERIAL CO LTD
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