Polishing boron sulfate rust remover

Abstract

The application provides a polishing boron sulfate rust remover. The rust remover is prepared by mixing boron sulfate rust removers, alumina particles and / or zinc oxide particles and water, wherein the mass of the alumina particles accounts for 0.5%-1% of the total mass, and the mass of the water accounts for 1%-20% of the total mass. The efficient rust remover has a quick and simple rust removalfunction for severe rust, as well as inactivation and anti-oxidation functions; and not only can the rust removal effect is superior to the rust removal effect of strong acid or nitrogen and phosphorus rust removers, and the polishing boron sulfate rust remover is green and environmentally friendly, and has no toxic and side effects on human bodies.

Description

Technical field [0001] The invention relates to the technical field of rust removal, in particular to a polishing type boron sulfate rust removal liquid. Background technique [0002] Ferrous metals, non-ferrous metals and other materials are prone to rust when placed outdoors or in the open air, which not only affects the appearance quality, but also affects the normal progress of painting and bonding processes. If they are not processed in time, the materials will be scrapped and lead to failure. Necessary economic losses. [0003] The first generation of rust remover is a strong acid. The acid can chemically react with rust and metal oxides to form soluble salts, so as to achieve the purpose of rust removal. At the same time, the acid can react with the base metal to release hydrogen. Hydrogen can exert pressure on rust and insoluble oxide scale, which is conducive to their exfoliation and the reduction of high-valent iron, and accelerates the pickling process. However, the tra...

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Problems solved by technology

[0002] Materials such as ferrous metals and non-ferrous metals are prone to rust when placed outdoors or in the open air, which not only affects the appearance quality, but also affects the normal process of painting and bonding. necessary economic loss

[0003] The first generation of rust remover is a strong acid, which can chemically react with rust and metal oxides to form soluble salts, so as to achieve the purpose of rust removal. At the same time of rust removal, the acid can react with the base metal to release hydrogen. Hydrogen can generate pressure on rust and insoluble scale, which is beneficial to their peeling and reduction of high-valent iron, and accelerates the pickling process, but the traditional acid treatment method also has obvious defects: a large amount of hydrogen gas in the process The generation of hydrogen embrittlement will cause the steel to produce hydrogen embrittlement, which will cause the mechanical properties of the metal to decline and affect the strength of the steel itself; at the same time, it is easy to form acid mist, which will affect the health of the operator and corrode the surrounding equipment and environment; the consumption of acid is also large , increase the processing cost; this kind of acid will cause excessive corrosion of steel

In addition, the residues produced in large quantities need to be discharged frequently, which not only seriously corrodes industrial pipelines, but also pollutes the soil and the environment.

[0004] The second-generation rust remover is a chemical substance containing nitrogen and phosphorus. Although it can overcome the disadvantages of the first-generation rust remover, such as being harmful to the human body, producing acid mist, and corroding the substrate, it is easy to enter the water system and cause eutrophication.

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