Corrosion preventive for being coated on surfaces of aluminium alloy plates and preparation method of corrosion preventive

Abstract

The invention belongs to corrosion protection techniques of aluminium alloy plates, particularly relates to corrosion preventive for being coated on the surfaces of the aluminium alloy plates, and further discloses a preparation method of the corrosion preventive. The corrosion preventive is prepared from the following components by part by weight: 10 to 35 parts of lacquer thinner, 5 to 20 parts of clear lacquer, and 0.5 to 5 parts of organosilicon. Through the adoption of the corrosion preventive electrochemical reaction on the surfaces of the aluminium alloy plates is prevented, dense protective films are formed on the surfaces of the aluminium alloy plates through the organosilicon, and the aluminium alloy plates are endowed with excellent anticorrosion performances. Compared with the corrosion preventive in the prior art, the corrosion preventive provided by the invention has stronger superior performances, and can be widely applied to surface corrosion protection of the aluminium alloy plates.

Description

technical field [0001] The invention belongs to aluminum alloy anti-corrosion technology, in particular relates to an anti-corrosion agent for aluminum alloy surface spraying, and meanwhile, the invention also discloses a preparation method of the anti-corrosion agent. Background technique [0002] After the aluminum alloy plate is cast, its surface needs to be treated with anti-corrosion. There are many kinds of anti-corrosion agents in the prior art, but they are generally unfriendly to the environment, and the treatment of waste liquid is difficult. At the same time, after long-term use of the treated aluminum alloy sheet, its waterproof and antirust properties gradually decrease, or even disappear completely, which is not conducive to the subsequent processing and use of the aluminum alloy sheet. Contents of the invention [0003] In order to solve the above technical problems, the object of the present invention is to provide an aluminum alloy anticorrosion agent with...

AI Technical Summary

Problems solved by technology

[0002] After the aluminum alloy plate is cast, its surface needs to be treated with anti-corrosion. There are many kinds of anti-corrosion agents in the prior art, but they are generally unfriendly to the environment, and the treatment of waste liquid is difficult.

At the same time, after long-term use of the treated aluminum alloy sheet, its waterproof and antirust properties gradually decrease, or even disappear completely, which is not conducive to the subsequent processing and use of the aluminum alloy sheet.

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