Anti-corrosion treatment process for anti-corrosion alloy pipe

Abstract

The invention discloses an anti-corrosion treatment process for an anti-corrosion alloy pipe. The anti-corrosion treatment process comprises the following specific machining processes that the surface of the alloy pipe is polished by adopting abrasive paper, then ultrasonic treatment is sequentially carrying out on the pipe for 5-6 minutes by using an acetone solution and absolute ethyl alcohol, then the pipe is soaked for 3-4 minutes by using a 1mol / L hydrochloric acid solution, the pipe is washed by using deionized water, and the pipe is dried for later use; the pipe is added into a surface treating agent solution with the concentration being 15% to be soaked for 5-6 min at the normal temperature, and the pipe is taken out and aired; and then a layer of epoxy resin anticorrosive paint is sprayed on the surface of the pipe. According to the anti-corrosion treatment process for the anti-corrosion alloy pipe, a metal surface is pretreated through a surface treating agent, then a coating is compounded, the surface treating agent is of a hyperbranched structure, the end group of the surface treating agent contains a large amount of oxysilane, sulfydryl and amino, silicon hydroxyl generated through hydrolysis of oxysilane bonds can be combined with hydroxyl on the surface of iron or aluminum metal in metal, and copper can be bonded with the sulfydryl, so that the binding capacity can be improved.

Description

technical field [0001] The invention belongs to the field of pipe processing and relates to an anticorrosion treatment process for anticorrosion alloy pipes. Background technique [0002] Metal pipes are easy to corrode in a humid external environment, so a layer of anti-corrosion coating is usually compounded on the surface of the pipe, but the bonding ability between the anti-corrosion coating and the metal pipe is weak, which is easy to cause peeling of the coating and corrosion of the pipe , in the prior art through the silane coupling agent YRSiX 3 Pretreatment of the metal surface, Y is the organic functional group combined with the coating, X is the alkoxy group after hydrolysis to generate Si(OH) 3 , The silane coupling agent is prone to reverse adsorption, making the Y organic functional group adsorb on the metal surface, while the silanol group is outward, resulting in the Y functional group not being able to cross-link with the coating, making the coating easy to...

AI Technical Summary

Problems solved by technology

[0002] Metal pipes are easy to corrode in a humid external environment, so a layer of anti-corrosion coating is usually compounded on the surface of the pipe, but the bonding ability between the anti-corrosion coating and the metal pipe is weak, which is easy to cause peeling of the coating and corrosion of the pipe , in the prior art through the silane coupling agent YRSiX 3 Pretreatment of the metal surface, Y is the organic functional group combined with the coating, X is the alkoxy group after hydrolysis to generate Si(OH) 3 , The silane coupling agent is prone to reverse adsorption, making the Y organic functional group adsorb on the metal surface, while the silanol group is outward, resulting in the Y functional group not being able to cross-link with the coating, making the coating easy to peel off and reducing corrosion resistance