Corrosion-resisting coating for old steel tube and operation method of corrosion-resisting coating

Abstract

The invention discloses a corrosion-resisting coating for an old steel tube and an operation method of the corrosion-resisting coating, and belongs to the technical field of metallic surface treatment. The coating is prepared from the following raw materials in percentage by weight: 1 to 3 percent of asphalt, 2 to 6 percent of a dispersing agent, 8 to 15 percent of graphene, 2 to 6 percent of a polyphenyl ether resin powder, 3 to 9 percent of styrene-butadiene rubber, 3 to 6 percent of methylbenzene, 1 to 3 percent of a plasticizer, 1 to 3 percent of a coupling agent, 2 to 4 percent of auxiliary materials, 1 to 3 percent of flame retardant and the balance of water. The corrosion-resisting coating for the old steel tube, disclosed by the invention, adopts a clear preparation principle and ascientific method; the surface of the old steel tube is cleaned by abrasive blasting, shot blasting and high-pressure water jetting, and then corrosion-resisting coating materials are combined with the steel tube by adopting a coating mode to form an integrated structure, wherein the asphalt has the advantages of high adhesion, good chemical reagent resistance and the like; in addition, the graphene has higher hardness, higher strength and heat resistance, so that the protective ability of the coating is improved, high-temperature resistance of the steel tube is enhanced, the use safety of the steel tube is greatly improved and use demands of special occasions are met.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and relates to a metal surface treatment and an operation method thereof, in particular to an old steel pipe anti-corrosion coating and an operation method thereof. Background technique [0002] The development of steel pipe production technology began with the rise of the bicycle manufacturing industry, the development of petroleum in the early 19th century, the manufacture of ships, boilers, and aircraft during the two world wars, the manufacture of thermal power boilers after the Second World War, the development of the chemical industry and Drilling, production and transportation of oil and natural gas have strongly promoted the development of steel pipe industry in terms of variety, output and quality. The steel pipe is used to transfer fluid and powder, exchange heat and produce mechanical parts and containers, what's more it's a kind of economical steel. Using steel pipes ...

AI Technical Summary

Problems solved by technology

However, the existing steel pipes have been used for a long time to cause weathering and other failures, and the anti-corrosion layer is also prone to thinning or falling off, which affects the performance