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Anticorrosive coating method for electric locomotive

A technology for electric locomotives and a coating method, which is applied to devices for coating liquid on surfaces, coatings, etc., can solve problems such as failure to meet environmental protection requirements, slow drying of asphalt coatings, and easy damage to paints, and achieves good spray construction. , long-term decorative performance, excellent matching effect

Active Publication Date: 2014-12-17
DATONG ELECTRIC LOCOMOTIVE OF NCR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing anticorrosion process of electric locomotives is as follows: firstly, chemical pretreatment is carried out on the outer surface and inner surface of the car body, and then the inner surface and outer surface are sprayed with primer, bituminous paint and topcoat in sequence. The surface adhesion of the material is small, and the coating is easy to fall off. The top paint on the roof and side walls cannot adapt to high temperature and strong ultraviolet light, and it is prone to problems such as roof bleeding and partial peeling off of the outer skin paint. Due to the operation of the chassis and bogies The environment is humid and the paint is easily damaged due to frequent car brushing. In addition, the asphalt paint inside the car dries slowly and releases toxic gas, which cannot meet environmental protection requirements.

Method used

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  • Anticorrosive coating method for electric locomotive
  • Anticorrosive coating method for electric locomotive
  • Anticorrosive coating method for electric locomotive

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Embodiment Construction

[0016] Such as Figure 1-3 As shown, the embodiment of the present invention provides a kind of electric locomotive anticorrosion coating method, and this method comprises the following steps:

[0017] Step 1), perform mechanical pretreatment on the overall surface of the electric locomotive: including the inner surface of the car body, the outer surface of the car body, the inner surface of the driver, the outer surface of the driver, the surface of the chassis and the surface of the bogie, all surfaces to be painted;

[0018] Step 2), spraying a primer of heavy-duty anti-corrosion paint on the outer surface of the electric locomotive car body, the outer surface of the cab, the surface of the chassis and the surface of the bogie to form a primer layer 1, the thickness of the primer layer 1 is between 80 and 100 μm;

[0019] Step 3), spraying the bottom-surface-integrated paint of the heavy-duty anti-corrosion coating on the surface of the cab of the electric locomotive and th...

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Abstract

The invention provides an anticorrosive coating method for an electric locomotive. The method comprises the steps that mechanical pretreatment is performed to the whole surface of the locomotive, and the outer surface of a locomotive body, the outer surface of a cab, the surface of a base frame and the surface of a reversing frame are coated with a heavy anticorrosive coatingprimer; the inner surfaces of the cab and the locomotive body are coated with a heavy anticorrosive coating bottom surface unityprimer; the bottom surface unity primer on the inner surface of the cab is coated with a heavy anticorrosive coating flame retardant and sound insulation paint; primers on the surfaces of the base frame and the reversing frame are coated with a heavy anticorrosive coatingfinish paint; primers on the surfaces of thelocomotive body and the cab are coated with a heavy anticorrosive coatingintermediate paint; intermediate paints on the outer surfaces of the locomotive body and the cab are coated with a heavy anticorrosive coatingfinish paint. The locomotive coated with the method can operate for a long time in a severe corrosive environment, the discharge amount of a service environment volatile organic compound is lower, the coating application property is good, the construction time can be greatly shortened, the production efficiency is improved, the construction cost is reduced, and the paints are not prone to strip.

Description

technical field [0001] The invention relates to an electric locomotive anticorrosion technology, in particular to an anticorrosion coating method for an electric locomotive. Background technique [0002] Railway heavy-duty freight electric locomotives are mainly used for coal transportation. Due to the long transportation lines of the locomotives and the harsh and harsh operating environment, they have to withstand changes in the intensity of sunlight in extreme high and low temperature environments for a long time, frequent impacts of sandstorms, and severe vibrations caused by high-speed locomotive operation. , the erosion of sulfur dioxide pollutants in industrial cities, and the operation in complex environments with frequent changes in dry and wet air with salinity and frequent erosion. The corrosion of railway locomotives is an important factor affecting the transportation and service life of locomotives. This requires that the anti-corrosion coatings and coating proc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/16
Inventor 司万强张世海吉金平张成喜
Owner DATONG ELECTRIC LOCOMOTIVE OF NCR
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