Anticorrosion coating for manual threaded valve

Abstract

The invention discloses an anticorrosion coating for a manual threaded valve and belongs to the field of corrosion prevention of valves. The anticorrosion coating for the manual threaded valve comprises the threaded valve, the outer end of the threaded valve is coated with an anticorrosion coating, the anticorrosion coating comprises a primer coating, a heavy-duty anticorrosion layer, a lotus leafself-cleaning coating, an inner self-cleaning coating and an outer waterproof self-cleaning layer which are applied to the surface of the threaded valve sequentially from left to right, the anticorrosion coating is not prone to peeling and falling by improving the waterproof performance and oil stain resistance of the anticorrosion coating, so that the corrosion resistance of the valve is significantly improved; and the anticorrosion coating has self-healing capacity when beginning to crack or have holes by use of a self-healing material, the effective acting time of the anticorrosion coatingis greatly prolonged, and the service life of the threaded valve in the anticorrosion coating is prolonged.

Description

technical field [0001] The invention relates to the field of anti-corrosion valves, in particular to an anti-corrosion wrapping coating for threaded manual valves. Background technique [0002] The threaded valve body has internal threaded threaded thread or external threaded threaded threaded thread, which is connected with the threaded threaded thread of the pipeline, which can be used to control air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive media and other types of fluid flow. The threaded valve body has an internal or external threaded threaded thread, which is connected with the pipeline threaded threaded thread; the main materials of the threaded valve are forged steel, stainless steel, and cast steel; the general maximum working pressure is 1.6-32MPA, and the working temperature is - 20°C-455°C, the valve diameter is from DN10-DN50. [0003] The anti-corrosion coating is a functional coating that is made of various high-performan...

AI Technical Summary

Problems solved by technology

[0004] There are generally many corners on the surface of the valve. Some threaded valves used for water saving are often exposed to water. Long-term contact with water makes the anti-corrosion coating on the surface of the valve, especially the coating at the corners, easily corroded and cracked. Even if there are holes, if the cracks are not repaired in time, the cracks and holes will become larger and larger, which will cause the anti-corrosion coating to peel and fall off, making its anti-corrosion ability worse, and making the use of threaded valves in the coating more difficult. Reduced lifespan

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