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Fiber-enhanced light interlayer composite material and subway cockpit body prepared from same

A composite material and fiber-reinforced technology, applied to railway car bodies, railway car body parts, railway roofs, etc., can solve problems affecting driving safety, poor strength performance, delamination of skin and foam sandwich, etc., and achieve quality Lightweight, good impact resistance and high structural strength

Pending Publication Date: 2019-03-26
JINAN NORTH TAIHE NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent CN107719394A discloses a fiber-reinforced foam sandwich composite cockpit and its preparation method. Its main material includes an upper skin, a lower skin and a foam core. The weight effect is obvious, but its strength performance is also slightly poor, and it is easy to cause delamination between the skin and the foam core when it is impacted, which affects driving safety

Method used

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  • Fiber-enhanced light interlayer composite material and subway cockpit body prepared from same
  • Fiber-enhanced light interlayer composite material and subway cockpit body prepared from same
  • Fiber-enhanced light interlayer composite material and subway cockpit body prepared from same

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Experimental program
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Effect test

Embodiment 1

[0043] Such as Figure 4-6 As shown in the structure, the lightweight composite subway cockpit cabin body of the present invention includes a front roof 4 and a bottom plate 5, and the front roof 4 and the bottom plate 5 are connected and fixed by connectors to form a predetermined cabin structure. The front roof 4 is also provided with a window 6 and a light hole 7 penetrating through the front roof 4 along the thickness direction.

[0044] In the cabin structure, the front roof 4 and the bottom plate 5 are all made of fiber-reinforced lightweight sandwich composite materials, such as figure 1 As shown, the fiber-reinforced lightweight sandwich composite material includes an upper skin 1, a lower skin 2, and a sandwich layer 3 placed between the upper skin 1 and the lower skin 2, forming the upper skin The material of the skin 1 and the lower skin 2 is a fiber-reinforced resin-based composite material made of fiber material and resin, and the sandwich material forming the sa...

Embodiment 2

[0056] Such as Figure 4-6 As shown in the structure, the lightweight composite subway cockpit cabin body of the present invention includes a front roof 4 and a bottom plate 5, and the front roof 4 and the bottom plate 5 are connected and fixed by connectors to form a predetermined cabin structure. The front roof 4 is also provided with a window 6 and a light hole 7 penetrating through the front roof 4 along the thickness direction.

[0057] In the cabin structure, the front roof 4 and the bottom plate 5 are all made of fiber-reinforced lightweight sandwich composite materials, such as figure 2 As shown, the fiber-reinforced lightweight sandwich composite material includes an upper skin 1, a lower skin 2, and a sandwich layer 3 placed between the upper skin 1 and the lower skin 2, forming the upper skin The material of the skin 1 and the lower skin 2 is a fiber-reinforced resin-based composite material made of fiber material and resin, and the sandwich material forming the s...

Embodiment 3

[0069] Such as Figure 4-6 As shown in the structure, the lightweight composite subway cockpit cabin body of the present invention includes a front roof 4 and a bottom plate 5, and the front roof 4 and the bottom plate 5 are connected and fixed by connectors to form a predetermined cabin structure. The front roof 4 is also provided with a window 6 and a light hole 7 penetrating through the front roof 4 along the thickness direction.

[0070] In the cabin structure, the front roof 4 and the bottom plate 5 are all made of fiber-reinforced lightweight sandwich composite material, and the fiber-reinforced lightweight sandwich composite material includes an upper skin 1, a lower skin A skin 2 and a sandwich layer 3 placed between the upper skin 1 and the lower skin 2, the material forming the upper skin 1 and the lower skin 2 is fiber reinforced resin made of fiber material and resin Based composite material, the sandwich material forming the sandwich layer 3 is a sandwich materia...

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Abstract

The invention belongs to the technical field of machining of railway traffic equipment, particularly relates to a fiber-enhanced light interlayer composite material and further discloses a subway cockpit body prepared from the same. The fiber-enhanced light interlayer composite material is of an integral structure integrally formed by taking a fiber-enhanced resin composite material as a skin material and foam with a three-dimensional net as an interlayer material through a vacuum-assisted resin transfer molding process, has the advantages of light weight, high structural strength, good shockresistance and environment friendliness and can be used for processing and preparing large-scale complex components such as the subway cockpit body. The subway cockpit body is prepared by taking the fiber-enhanced light interlayer composite material as a main body material and has the performance advantages of light weight, high structural strength and good shock resistance.

Description

technical field [0001] The invention belongs to the technical field of rail transit equipment processing, specifically relates to a fiber-reinforced lightweight sandwich composite material, and further discloses a subway cockpit cabin prepared by the same. Background technique [0002] In the field of rail transit, at present, most of the cabin structure of the subway cockpit is made of metal. In order to improve the rigidity of the cabin, two layers of thin steel plates are stamped and welded. However, this structure has many disadvantages, including heavy weight, easy to be corroded by the environment, and easily deformed by welding during the forming process. In order to reduce product weight and prevent corrosion, domestic subway designers are gradually using composite materials instead of steel plates to design subway cockpits. Usually, SMC is used to make flat plates, and then the assembly of the three-dimensional structure is completed by splicing. Although the anti-c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/04B32B3/08B32B3/12B32B27/06B32B37/02B32B38/00B61D17/12B61D17/04
CPCB32B3/085B32B3/12B32B27/06B32B37/02B32B38/164B32B2260/021B32B2260/046B32B2307/558B32B2307/718B32B2605/10B61D17/04B61D17/12
Inventor 孙佳春徐勤福邓桃益张璐惠林海王慧军李华臧家庆张君李海柱仪海霞韩军慧李军艳王化银
Owner JINAN NORTH TAIHE NEW MATERIAL
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