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A welding method of aluminum pole plate for overall calibration of power frequency electric field measuring instrument

A technology of power frequency electric field and welding method, which is applied in the direction of welding equipment, welding/welding/cutting items, manufacturing tools, etc., and can solve problems such as electrode plate deformation and electrode plate flatness not meeting the requirements

Active Publication Date: 2021-08-10
STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an aluminum plate welding method for overall calibration of a power frequency electric field measuring instrument, to solve the problem that the existing welding method easily leads to deformation of the electrode plate, which in turn causes the flatness of the electrode plate to fail to meet the requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An aluminum plate welding method for the overall calibration of a power frequency electric field measuring instrument. Multiple aluminum plates are welded into an electrode plate with an equivalent diameter greater than or equal to 4m. The welding adopts the method of interval welding on the back and no welding on the front, wherein , the aluminum plate is a conventional aluminum plate with a length of 2m, a width of 1m, a continuous welding length of 10cm, and an adjacent continuous welding interval of 10cm. The solder is an aluminum alloy welding rod. Before welding, the adjacent aluminum plates should be aligned to ensure that the front of the plate The misalignment is less than or equal to 0.1mm, and the conventional aluminum metal welding process is adopted, and an equipotential connection metal wire is installed on the back of the plate after welding.

Embodiment 2

[0034] An aluminum plate welding method for the overall calibration of a power frequency electric field measuring instrument. Multiple aluminum plates are welded into an electrode plate with an equivalent diameter greater than or equal to 4m. The welding adopts the method of interval welding on the back and no welding on the front, wherein , The aluminum plate is a conventional aluminum plate with a length of 2m, a width of 1m, a continuous welding length of 9cm, and an adjacent continuous welding interval of 11cm. The solder is an aluminum electrode. The misalignment is less than or equal to 0.1mm, and the conventional aluminum metal welding process is adopted. After welding, an equipotential connection metal wire is installed on the back of the plate.

Embodiment 3

[0036] An aluminum plate welding method for the overall calibration of a power frequency electric field measuring instrument. Multiple aluminum plates are welded into an electrode plate with an equivalent diameter greater than or equal to 4m. The welding adopts the method of interval welding on the back and no welding on the front, wherein , the aluminum plate is a conventional aluminum plate with a length of 2m, a width of 1m, a continuous welding length of 8cm, and an adjacent continuous welding interval of 12cm. The solder is an aluminum alloy welding rod. Before welding, the adjacent aluminum plates should be aligned to ensure the front of the plate The misalignment is less than or equal to 0.1mm, and the conventional aluminum metal welding process is adopted, and an equipotential connection metal wire is installed on the back of the plate after welding.

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Abstract

The invention discloses an aluminum pole plate welding method for the overall calibration of a power frequency electric field measuring instrument. A plurality of aluminum plates are welded into an electrode pole plate with an equivalent diameter greater than or equal to 4m. The welding adopts interval welding on the back side and no welding on the front side The way. The invention solves the problem of unsatisfactory flatness caused by the full welding of the aluminum pole plate by adopting the method of interval welding on the back and no welding on the front.

Description

technical field [0001] The invention relates to the technical field of power equipment calibration, in particular to an aluminum plate welding method used for the overall calibration of a power frequency electric field measuring instrument. Background technique [0002] The power frequency electric field is an important evaluation index in the environmental impact assessment of power transmission and transformation projects and the environmental protection acceptance of completion. The devices used for power frequency electric field measurement are called "power frequency electric field measuring instrument", "power frequency Frequency electric field measuring device" and so on, according to the provisions of my country's Metrology Law, these equipment should be verified or calibrated to be qualified when used. [0003] my country's legal metrology institutions are responsible for the traceability of the value of such equipment, but at present, when the legal metrology instit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K31/02B23K103/10
CPCB23K31/02B23K2103/10
Inventor 兰新生姚晓唐平滕予非张建功张劲周易谦侯国彦王志高薛志航何宇航田倩倩耿植刘涛刘红志
Owner STATE GRID SICHUAN ELECTRIC POWER CORP ELECTRIC POWER RES INST