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Insulation and anticorrosion method for conductive copper bars

A technology of anti-corrosion coating and electrostatic powder, which is used in the manufacture of circuits, electrical components, cables/conductors, etc., and can solve the problem of difficulty in ensuring insulation.

Inactive Publication Date: 2011-12-21
NINGBO KEXIN CORROSION CONTROL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The insulating layer of the copper bar formed by the hot-dipping dip-coating insulation method of the copper bar is only a single layer of epoxy coating, and it is difficult to ensure its insulation

Method used

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Embodiment Construction

[0024] The primer of the present invention is composed of epoxy resin, curing agent and auxiliary agent, and its weight percentage is 49-85:5-49:2-10. The epoxy resin can be bisphenol, type A epoxy resin or phenolic modified epoxy resin. The curing agent can be phenolic hydroxyl resin, dicyandiamide, substituted dicyandiamide or dicarboxylic acid dihydrazide. The auxiliary agent is composed of a toughening agent, a leveling agent, a defoamer and an accelerator, and its weight percentage is 40-70:10-20:10-20:10-20. Among them, the toughening agent can be phthalates or epoxy esters; the leveling agent can be polyethyl acrylate or butyl acrylate; the defoamer can be ordinary defoamer ZS-601 or high-efficiency defoamer ZS-603; Accelerator can be 2-methylimidazoline, 2-phenylimidazoline, cyclic amidine, piperidine, guanidine or urea derivatives.

[0025] The surface coating is composed of epoxy resin, curing agent, filler and other auxiliary agents, and its weight percentage is 2...

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Abstract

The invention provides an insulation and anticorrosion method for conductive copper bars, which uses an air spraying method or an electrostatic powder coating method to coat a thermosetting epoxy powder insulation and anticorrosion coating composed of a primer coating and a surface coating on the surface of the copper bars. Layer epoxy powder electrical insulation and anti-corrosion coating to achieve the purpose of copper bar insulation and anti-corrosion. Its insulating and anti-corrosion coating coating process is: 1) workpiece surface cleaning, 2) infrared heating, 3) spraying, 4) curing coating, 5) cooling, 6) inspection, the qualified ones are the copper bars after insulation and anti-corrosion treatment product. The method of the invention not only improves the insulation, chemical resistance, weather resistance and other properties of the copper bar, but also reduces the labor intensity and saves the cost, improves the service life of the copper bar, and solves the problem of wrapping insulation and heat shrinkage. The flaws and deficiencies of the two methods of suiting.

Description

technical field [0001] The invention belongs to the technical field of electrical insulation and anticorrosion coatings, and in particular relates to an insulation and anticorrosion treatment method for conductive copper bars. technical background [0002] Copper bars, also known as copper busbars, copper busbars or copper busbars, are made of copper and have a rectangular or rounded rectangular cross-section. They play the role of transmitting current and connecting electrical equipment in the circuit. Copper busbar is a high-current conductive product, which is suitable for electrical engineering such as high and low voltage electrical appliances, switch contacts, power distribution equipment, and busway. It is also widely used in ultra-high current electrolytic smelting projects such as metal smelting, electrochemical plating, and chemical caustic soda. [0003] In most cases, copper bars need to be insulated. At present, there are two methods of insulation treatment for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/22
Inventor 吴金岳
Owner NINGBO KEXIN CORROSION CONTROL ENG
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