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Bonding method of tramcar roof made of light composite material

A composite material and tram technology, applied in the direction of railway roof and other directions, can solve the problems of steel structure skeleton connection of the car body, etc., and achieve the effects of reducing the total amount of the car body, the manufacturing method is simple and easy, and saving power nuclear energy.

Inactive Publication Date: 2018-03-20
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Problems solved by technology

[0003] In order to solve the technical problem that the lightweight carbon fiber composite material roof parts of the existing tramcars cannot be connected with the steel structure skeleton of the car body by using the traditional welding process, the invention provides a bonding method for the lightweight composite material roof parts of the tramcar

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  • Bonding method of tramcar roof made of light composite material

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Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0022] Such as figure 1 Shown, the light-weight composite roof bonding method of tramcar of the present invention comprises the steps:

[0023] Step 1: Under the environmental conditions that the ambient temperature is kept at 25°C-30°C and the relative humidity is maintained at 50%-70%, the bonding surface of the lightweight carbon fiber composite roof component is polished;

[0024] Step 2: Carrying out priming agent activation treatment before bonding to the bonded surface of the polished roof part described in step 1;

[0025] Step 3: arranging a plurality of positioning pads 1 on the steel structure of the car body, the positioning pads 1 are rectangular, with a thickness of 5 mm, a length of 20 mm, and a width of 10 mm;

[0026] Step 4: Make a special injection nozzle. The opening of the injection nozzle is arched, the vertical height of the arch open...

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Abstract

The invention provides a bonding method of a tramcar roof made of a light composite material, and belongs to the field of connection methods of railway vehicle light composite material car roof structures and car body steel structural skeletons. According to the method, the bonding property is improved by conducting surface treatment on the surface of the light composite material, bonding glue suitable for the light composite material is selected, fixing and limiting methods which cause less damage to the surface of a light composite material plate and are light and accurate are adopted, the environment condition of construction is adjusted, the solidification time is shortened, and thus bonding of a car roof component made of a light carbon fiber composite material and a car body steel structure is achieved. As the replacing technology of the welding technology, the manufacturing method of the car roof component by adopting the bonding method is simple, convenient and practical, and safe and reliable, the bonding strength completely conforms to the design requirement, and the light carbon fiber composite material can be successfully applied to the field of production and manufacturing of railway vehicles, accordingly the total weight of the car body is sharply lowered, the production efficiency is greatly improved, and the power nuclear energy sources needed by operation of the vehicles are saved.

Description

technical field [0001] The invention belongs to the field of connection methods between a rail vehicle lightweight composite material roof structure and a car body steel structure skeleton, and in particular relates to a tramcar lightweight composite material roof bonding method. Background technique [0002] Sanya tram roof components use lightweight carbon fiber composite materials to replace the original aluminum-plastic panels, stainless steel panels and other materials, and the original roof components made of aluminum-plastic panels, stainless steel panels, etc. The method adopts the traditional welding process. However, the new carbon fiber composite roof parts cannot withstand the high temperature of welding. For this reason, it is necessary to develop a connection method between a new carbon fiber composite roof part and the steel structure skeleton of the car body. Contents of the invention [0003] In order to solve the technical problem that the lightweight ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/54B61D17/12
CPCB29C65/54B29C66/02245B29C66/74283B61D17/12
Inventor 王成周保菊孙剑爽
Owner CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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