Rust remover with rust removing function and preparation method thereof

Abstract

The invention discloses a rust remover with a rust removing function. The rust remover with the rust removing function is prepared from the following components in parts by weight: 20 to 40 parts of phosphoric acid, 3 to 6 parts of zinc isoocatanoate, 11 to 17 parts of 2-sodium hydroxyphosphone-acetic acid, 8 to 20 parts of water soluble silicone oil, 2 to 4 parts of sodium dodecyl sulfate, 26 to33 parts of propylene glycol, 1 to 3.5 parts of sodium formate, 60 to 80 parts of deionized water, and 3 to 7 parts of tetraethyl silicate. According to the rust remover with the rust removing function provided by the invention, through adding the phosphoric acid, organometallic salt and the propylene glycol into the deionized water, the ion strength of H+ in the rust remover can be reduced properly, rust can be removed effectively, meanwhile, the damage on the surface of a workpiece can be avoided, and the rust remover has a good rust removing effect on the workpiece treated through the rustremover.

Description

technical field [0001] The invention relates to the technical field of material surface treatment, in particular to a rust remover with antirust function and a preparation method thereof. Background technique [0002] 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 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: that is, the large amount of hydrogen gas in the process The occurrence of hydrogen embrittlement will cause the steel to have hydrogen embrittlement, which will cause the mechanical properties of the metal to decline and affect the strength of the steel it...

AI Technical Summary

Problems solved by technology

[0002] 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 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: that is, the large amount of hydrogen gas in the process The occurrence of hydrogen embrittlement will cause the steel to have 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. Increases disposal costs; these acids can over-corrode steel

[0003] The Chinese invention patent with the publication number CN104451727A is a rust remover prepared by sodium silicate, phosphoric acid, sodium lauryl sulfate, calcium hypophosphite, potassium tetraborate, ammonium molybdate and deionized water, which can reduce the rust on the surface of the workpiece. damage, but the workpiece will continue to rust during subsequent use