A natural pine oil rust remover

Abstract

The invention discloses a natural pine oil rust removing liquid. The components are calculated in parts by weight as follows: 100 parts of natural pine oil, 40-46 parts of citric acid, 2-10 parts of sodium chloride, and 1-4 parts of dimethyl sulfoxide. parts, 1-4 parts of ethanol. The natural pine oil rust removing solution provided by the present invention takes natural pine oil as the main component, and has good rust removal function for metals under the combined action of citric acid and the like, and especially has excellent rust removal effect on ferrous metals, At the same time, there is no damage to the mechanical properties of the metal.

Description

technical field [0001] The invention relates to a rust removing liquid. Background technique [0002] Ferrous metal (steel) is 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. If it is not handled in time, it will cause scrapping of materials and unnecessary Economic losses. [0003] Traditional chemical rust removal usually uses strong acid, which can chemically react with rust and metal oxides to generate soluble salts, so as to achieve the purpose of rust removal. At the same time of rust removal, acid can react with base metal to release hydrogen, hydrogen It can exert pressure on rust and insoluble scale, which is beneficial to their peeling and reduction of high-valent iron, and accelerates the pickling process. [0004] However, the traditional acid solution treatment method also has obvious defects: that is, the generation of a large amount of hydrogen ...

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Problems solved by technology

[0004] However, the traditional acid solution treatment method also has obvious defects: that is, the generation of a large amount of hydrogen during the treatment process will cause hydrogen embrittlement of the steel, 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, affecting The health of the operator and the surrounding equipment and environment are corroded; the consumption of acid is also large, which increases the cost of treatment; this type of acid will cause over-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.