Corrosion resistance technology of steel structure

Abstract

The invention discloses a corrosion resistance technology of a steel structure. The corrosion resistance technology of the steel structure comprises the following steps of S1, carrying out surface pretreatment on the steel structure; S2, derusting the surface of a steel material; S3, preparing a waterborne over-rust corrosion protective coating of the steel structure; S4, coating the steel structure; and S5, inspecting and accepting the oil paint coating quality. According to the corrosion resistance technology of the steel structure provided by the invention, the characteristics of an epoxy emulsion and an acrylic emulsion are combined, so that the combination property of a coating is improved; a polyaniline emulsion is directly added into the coating, so that the compatible problem of polyaniline and other macromolecule emulsions and the stability problem of the prepared corrosion-resistance coating are solved, and the corrosion resistance of the coating is improved; and acid and reactive hydrogen in the polyaniline can promote the curing of the epoxy resin, and the polyaniline is used as a curing agent of the epoxy emulsion, so that the process is simple and low in cost. The corrosion resistance technology of the steel structure is simple, not only has favorable corrosion resistance, but also is simple and convenient to construct, is capable of greatly relieving the labor intensity of coating, has high weather resistance at the same time, and can realize long-time protection on the steel structure.

Description

technical field [0001] The invention belongs to the technical field of steel structures, and in particular relates to an anticorrosion process for steel structures. Background technique [0002] Coating anticorrosion is one of the important ways of metal anticorrosion. In order to obtain excellent anticorrosion effect, it is necessary to treat the surface to be painted, which not only consumes time and energy, reduces production efficiency, and increases construction cost, but also rust dust will harm human health. Even so, the result of the surface preparation may not meet the painting requirements. The rusty paint just makes up for this defect. The rusty paint is an antirust paint that can be directly painted on the surface without rust removal or simple rust removal. The pre-treatment of the paint is simple and reduces the construction cost. According to the principle of antirust, rust coatings can be divided into four categories: penetration type, conversion type, stab...

AI Technical Summary

Problems solved by technology

Oil-based coatings are mostly used in the anti-corrosion industry, and oil-based coatings are almost all selected in the field of heavy-duty anti-corrosion coatings. Traditional oil-based anti-corrosion coatings have complicated coating processes, harsh working conditions, and high labor intensity.