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On-site high magnification inspection method applicable to tower material tissue

An inspection method and high-power technology, applied in the field of power equipment maintenance, can solve problems such as difficulty in high-power inspection work on site

Inactive Publication Date: 2013-12-11
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The service transmission tower and the lightning protection tower are all in the wilderness, and cannot be connected to the power supply, which brings difficulties to the high-speed inspection work on site. Therefore, it is very important to develop a method for on-site high-speed inspection of the service transmission tower and the lightning protection tower without an external power supply. necessary

Method used

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Examples

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Embodiment Construction

[0018] The following examples of the present invention will be further described in detail. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0019] An on-site high-power inspection method suitable for tower material structures, the steps of the method are as follows:

[0020] ⑴ Grinding, in the grinding process, it is specifically divided into:

[0021] ① Coarse grinding: Use a rechargeable electric grinder to remove the galvanized layer on the tower materials of the power transmission tower and lightning rod tower in service to reveal the metallic luster;

[0022] ②Fine Grinding: Use a rechargeable electric grinder and use No. 400 and No. 600 metallographic sandpaper for grinding. The force should be uniform when grinding. The grinding time of each sandpaper should not be too long. The sandpaper can be replaced when the marks are even and consistent, and the grinding direction should be rotated 90...

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PUM

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Abstract

The invention relates to an on-site high magnification inspection method which is applicable to a tower material tissue, and comprises the steps that (1), an inspected surface is ground; (2), polishing is performed by a chemical polishing method; (3), erosion is performed by a nitric acid and alcohol mixture; and (4), high magnification inspection is performed, and the inspected surface is observed or a laminated film is taken to a laboratory for careful analysis. According to the on-site high magnification inspection method, on-site high magnification inspection of an in-service power iron transmission tower and a lightning rod iron tower is achieved very well; grinding, the polishing, the erosion, and on-site high magnification observation photographing or metallographic film laminating are achieved; and material analysis and life assessment of the in-service power transmission iron tower and the lightning rod iron tower are achieved.

Description

technical field [0001] The invention belongs to the technical field of power equipment maintenance, in particular to an on-site high-magnification inspection method suitable for tower material structures. Background technique [0002] The power transmission tower and lightning rod tower in service in the power system cannot be cut off for metallographic analysis. To conduct on-site high-magnification inspection of tower material organization, grinding, polishing, erosion, on-site high-magnification observation and photography must be carried out on the tower material. Metallographic lamination. The service transmission tower and the lightning protection tower are all in the wilderness, and cannot be connected to the power supply, which brings difficulties to the high-speed inspection work on site. Therefore, it is very important to develop a method for on-site high-speed inspection of the service transmission tower and the lightning protection tower without an external power...

Claims

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Application Information

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IPC IPC(8): G01N1/32
Inventor 陈韶瑜马崇程明
Owner STATE GRID CORP OF CHINA
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