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High voltage switch aluminium casing friction powder-spraying coating technique

A technology of high-voltage switch and coating process, applied in coating, device for coating liquid on surface, surface pretreatment, etc., can solve the problems of high processing cost, pollute the environment, long construction period, etc., achieve low processing cost, The effect of improved coating film coverage and continuous coating

Inactive Publication Date: 2008-08-06
CHINT ELECTRIC
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AI Technical Summary

Problems solved by technology

There are multiple coating constructions in the coating process, the construction period is long, up to 6-48 hours, the processing cost is high, and the content of 5‰ of volatiles in the paint is released, polluting the environment

Method used

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Examples

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Embodiment

[0020] As shown in Figure 2, it is a schematic structural diagram of a high-voltage switch aluminum shell friction powder coating process. A friction powder coating process for a high-voltage switch aluminum shell is:

[0021] The first step is to pre-treat the aluminum shell of the high-voltage switch before coating by conventional mechanical pre-treatment to ensure a clean and clean surface of the substrate without scale and oil;

[0022] The second step is to use a tape material that is resistant to high temperatures above 200°C and does not degumming to shield and protect the finished surface of the aluminum shell of the high-voltage switch;

[0023] The third step is to use a friction spray gun to spray powder on the aluminum shell of the high-voltage switch until the thickness of the coating film reaches a minimum dry film of 90 μm.

[0024] The fourth step is to transfer the coated workpiece to the curing oven for curing and drying. The temperature of the oven is set at...

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Abstract

The invention relates to a rubbing, dusting and coating process of high pressure switch aluminum shell, the process is characterized in that the process is a technique which completes the coating of the aluminum shell of the high pressure switch products by utilizing the method of rubbing and dusting. The rubbing, dusting and coating process can replace the general paint coating technique, so the thickness of the primary coating film is increased, the coating processing cycle is shortened in double, the release of the volatiles (VOC) in the process of paint coating is reduced and even stopped and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to a friction powder spraying coating process for an aluminum shell of a high-voltage switch, which can be used in the manufacture of a high-voltage switch in the electrical industry, improves the anti-corrosion performance and decorative performance of the aluminum shell of the high-voltage switch, and belongs to the technical field of coating technology. Background technique [0002] High-voltage switch is one of the important products in the high-voltage electrical manufacturing industry. High-voltage switch products include GIS closed combination electrical appliances, disconnectors and circuit breakers. Most of their shells are cast aluminum parts or aluminum plate welded parts. In order to improve the anti-corrosion performance And decorative performance, the need for coating protection treatment. [0003] At present, the coating method of the aluminum housing of the high-voltage switch generally adopts the paint coating pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/06B05D3/00
Inventor 邱章白范新国杨剑南化谭显春袁波汪洪源
Owner CHINT ELECTRIC
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