Special anticorrosive coating capable of avoiding rust removal

Abstract

The invention discloses a special anticorrosive coating capable of avoiding rust removal. The special anticorrosive coating is prepared by mixing the following components in parts by weight: 15-35 parts of acrylic resin, 10-25 parts of epoxy saturated resin, 35-50 parts of mixed antirust pigment, 0.1-1.0 part of a defoaming agent, 10-20 parts of a mixed solvent, 0.1-1.0 part of a leveling oil resistant agent and 0.1-1.0 part of an anti-coagulating agent, wherein the mixed antirust pigment is prepared by mixing iron oxide red 190, zinc oxide, superfine zinc powder, filling material barium sulfate and zinc yellow powder. The special anticorrosive coating capable of avoiding rust removal provided by the invention has the advantages of high density, good hardness, strong wear resistance, high impact resistance and the like, also can avoid contact of new iron with outside moisture and oxygen absorption of new iron to outside moisture and oxygen, can fundamentally eliminate the phenomenon of secondary rusting, and also has the advantages of convenience in construction, good anticorrosive and antirust effects and the like concurrently.

Description

technical field [0001] The invention belongs to the field of chemical coatings and paints, and in particular relates to a rust-free special anti-corrosion coating applied to the power transformer industry. Background technique [0002] In the fields of machinery, electric power and other industries, the metal parts are usually protected by paint and paint. The paint method is: first use the metal anti-rust paint as the primer, and then choose different colors of top paint for painting according to the needs. . The conventional method of operation is: first pre-treat the metal surface, pickling, phosphating or sandblasting the floating rust or oxide layer on the metal surface, and then polishing the rust removal method, and then apply anti-rust paint Apply brushing treatment, and then apply topcoat after drying. Its disadvantage is that this anti-rust process only uses paint to block the reaction between moisture and oxygen in the air, so as to prevent secondary rust. But ...

AI Technical Summary

Problems solved by technology

The disadvantage is that this anti-rust process only uses paint to block the reaction between moisture and oxygen in the air, so as to prevent secondary rusting.

But in fact, the floating rust on the metal surface can be removed, but the oxide layer cannot be removed. In the end, there will be more or less residual parts on the metal surface layer.

This is the fundamental reason why it is easy to cause secondary rust after using anti-rust paint on metal parts at present.

[0003] At present, whether it is in the machinery industry, power equipment industry, railway, military industry and other industries in China, from the perspective of the effect of using general antirust paint, not only the effective period of antirust is short, but the maintenance cost is high, and it needs to be repaired after 2-3 years. Secondary anti-rust, especially the pickling and phosphating solution produced during the secondary anti-rust painting will also cause serious pollution to the surrounding environment

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