Anticorrosion coating, isolating switch spring part using the same and preparation method thereof

Abstract

The invention discloses an anticorrosion coating, an isolating switch spring part using the same and a preparation method thereof. The anticorrosion coating is composed of a bottom layer and a surface layer. The bottom layer is a Dacromet layer formed by a Dacromet paint, and the surface layer is a baking varnish layer formed by polyester amino baking varnish. The surface of the isolating switch spring part using the coating is coated with an anticorrosion coating composed of a bottom layer and a surface layer. The bottom layer is a Dacromet layer formed by a Dacromet paint, and the surface layer is a baking varnish layer formed by polyester amino baking varnish. The anticorrosion coating provided by the invention has the advantages of excellent surface bump and scratch resistance and surface rusting resistance, long anticorrosion time, and low maintenance cost. The isolating switch spring part using the coating provided by the invention is coated with the anticorrosion coating involved in the invention on the surface, has excellent surface corrosion resistance, shock resistance, heat resistance and surface stability, the working life of the spring part is prolonged, and the maintenance cost of the isolating switch is reduced.

Description

technical field [0001] The invention belongs to the technical field of anti-corrosion of electrical equipment, and in particular relates to an anti-corrosion coating, a disconnector spring using the coating and a preparation method thereof. Background technique [0002] The isolating switch plays an isolation role in the circuit. It is the most widely used power transmission and transformation equipment in the power system. Its working principle and structure are relatively simple, but due to the large amount of use and high requirements for working reliability, its operation The situation has an important impact on the security of the grid. The main function of the isolating switch is: after opening, establish a reliable insulation gap, and separate the equipment or lines that need to be repaired from the power supply with an obvious disconnection point to ensure the safety of maintenance personnel and equipment; Line; it can be used to divide and close small currents in t...

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Problems solved by technology

[0003] The outdoor high-voltage isolating switch is a kind of electrical equipment that is most affected by the environment and climate conditions. Its operating conditions are relatively harsh. Salt spray, pollution, and birds and insects, the spring parts in the isolation switch are prone to bumps, scratches and corrosion, affecting the appearance of the product, causing problems such as weakened spring parts, fatigue deformation, and poor contact, which in turn cause overheating of the conductive circuit. Problems such as contact burnout seriously affect product performance and working life, increase maintenance workload and maintenance costs, and threaten the safe operation of the power system

[0004] In the prior art, the spring parts of the isolating switch are mostly protected by paint and electro-galvanizing. Ordinary paint cannot withstand severe atmospheric corrosion, and its protection period is too short, so it needs to be repainted once a year; the corrosion rate of the zinc layer in the polluted industrial atmosphere can reach 6-15 μm / year, due to the limited thickness of the electro-galvanized layer, generally 18-30 μm, the electro-galvanized parts directly exposed to the humid atmosphere for a long time are severely corroded; Dacromet, Dacromet and acrylic polyurethane have gradually developed in recent years Due to the short anti-corrosion period and high maintenance cost, the combination of topcoat cannot meet the anti-corrosion requirements of the disconnector spring parts

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