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Composite material door panel for bottom side door of open top wagon and preparation method thereof

A composite material and side door technology, applied in chemical instruments and methods, synthetic resin layered products, glass/slag layered products, etc., can solve the problem of mechanical properties that are difficult to withstand train transportation conditions, outdoor exposure and rain erosion, Unable to recycle and use, etc., to achieve good resilience, easy installation, and no permanent deformation

Inactive Publication Date: 2015-06-03
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, FRP has the disadvantages of poor low-temperature performance, easy cracking, and inability to be recycled and recycled. The mechanical properties of a single modified plastic are also difficult to withstand complex train transportation conditions.
Wood and bamboo cannot withstand outdoor exposure and rain, and their service life is low

Method used

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  • Composite material door panel for bottom side door of open top wagon and preparation method thereof
  • Composite material door panel for bottom side door of open top wagon and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] Preparation:

[0033] Lay the prepreg tape neatly according to the angle to a predetermined thickness; add a layer of non-woven fabric on the upper and lower surfaces of the prepreg tape layer; prepare the laid prepreg tape layer and non-woven fabric by molding method to obtain the lower side door of the gondola Composite door panels.

[0034] Prepare materials according to the prepreg tape and non-woven fabric in Table 1, cut them neatly according to the size, and lay them up to a predetermined thickness according to the layering method; after the prepreg tape layer and non-woven fabric are molded by compression molding, Test its performance as shown in Table 2.

[0035] Table 1 Example prepreg tape and non-woven fabric proportioning

[0036]

[0037] The layering method is as figure 1 As shown, 1 is a non-woven fabric layer, 2...

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Abstract

The invention discloses a composite material door panel for a bottom side door of an open top wagon. The composite material door panel is prepared from the following components in part by weight: 95-99.9 parts of prepreg tape and 0.01-5 parts of non-woven fabric. A preparation method of the composite material door panel for the bottom side door of the open top wagon comprises the following steps: neatly laying up the prepreg tapes to reach the set thickness according to the angle, arranging the non-woven fabrics on the upper surface and the lower surface of the prepreg tape layer, and adopting a mold pressing forming method to enable the laid prepreg tape layers and the non-woven fabrics to be prepared into the composite material door panel for the bottom side door of the open top wagon. The door panel is rustless, has corrosion and deformation resistance, is light, can be replaced and repaired conveniently and can be recycled.

Description

technical field [0001] The invention belongs to the technical field of train components, and in particular relates to a composite material door panel for a lower side door of a gondola car and a preparation method thereof. Background technique [0002] Among the current freight trains in my country, there are about 300,000 gondola cars, accounting for 60% of the total number of freight cars. Steel doors have high strength and excellent mechanical properties, but at the same time there are many shortcomings, such as excessive weight, easy to corrode, easy to rust, easy to deform after impact, and the deformation cannot be restored by itself. Especially in winter in the north, the iron doors are easy to freeze together, and it is difficult to open when unloading. After using forklift and crowbar to open, it is easy to cause permanent deformation, which will affect the later use. [0003] In response to these problems, fiberglass, modified plastics, and even wood and bamboo h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/06B32B27/12B32B27/18
CPCB32B5/022B32B17/04B32B17/067B32B2260/046
Inventor 杨桂生李小娇
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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