Steel surface rust-proof rust-removal liquid

Abstract

The invention discloses a steel surface rust-proof rust-removal liquid which is prepared from the following raw material components in parts by weight: 20-25 parts of orthophosphoric acid, 10-15 parts of boric acid, 5-10 parts of benzenesulfonic acid, 8-10 parts of tartaric acid, 3-5 parts of sodium bicarbonate, 5-8 parts of sodium hydroxide, 3-5 parts of magnesium chloride, 5-10 parts of potassium hydroxide, 5-10 parts of aluminum oxide, 5-8 parts of nickel acetate, 3-5 parts of nickel carbonate, 2-3 parts of manganese dioxide, 2-3 parts of iron oxide, 5-6 parts of oxalic acid, 3-5 parts of salicylic acid, 1-3 parts of triethanolamine, 5-7 parts of rosin, 5-8 parts of nonylphenol polyoxyethylene ether, 6-7 parts of lauryl sodium sulfate, 6-8 parts of sulfamic acid, 3-5 parts of p-toluenesulfonic acid, 3-5 parts of dimethyl fumarate and 45-50 parts of deionized water. The steel surface rust-proof rust-removal liquid disclosed by the invention has the characteristics of being good in rust-proof performance and rust-removal capability; processes such as spraying and soaking, can be adopted on the steel surface; while the dust-removal effect is generated, corrosion is converted into a compact rust-proof film, so that environmental pollution is not generated in an operation process.

Description

technical field [0001] The invention relates to the technical field of an anti-rust and rust-removing liquid, in particular to an anti-rust and rust-removing liquid for iron and steel surfaces. Background technique [0002] At present, the relatively advanced anti-rust and rust-removing technologies for steel surfaces basically use technological formulas such as rust-removing phosphating agents and phosphating solutions to form an anti-corrosion layer on the steel surface. But the shortcoming of above-mentioned technology is that the structure of anti-corrosion layer formed by above-mentioned formula is relatively loose, the time of effective antirust is shorter, and its waste water still has certain pollution to environment. Contents of the invention [0003] The purpose of the present invention is in order to overcome above-mentioned shortcoming of prior art, provides a kind of iron and steel surface antirust derusting liquid, this iron and steel surface antirust and der...

AI Technical Summary

Problems solved by technology

However, the disadvantage of the above process is that the structure of the anti-corrosion layer formed according to the above formula is relatively loose, the effective anti-rust time is relatively short, and the waste water still pollutes the environment to a certain extent.