Rust-eliminating and rust-preventing liquid

Abstract

The invention belongs to a chemical solution, in particular to a rust-removing and anti-rust solution for treating metal surface corrosion. It is mainly invented for the current metal rust removal process is complex, the process is more labor intensive, the rust removal is difficult to complete, and the rust is still easy to rust after rust removal. The present invention is prepared by adding phosphoric acid as the main raw material and adding ingredients therein. The weight proportions of each raw material are: 200-300 parts of water, 80-160 parts of phosphoric acid, 1-5 parts of potassium dichromate, and 0.5 parts of potassium nitrate. -4 parts, zinc oxide 1-6 parts, trisodium phosphate 1-8 parts, sodium molybdate 0.01-1 parts, carboxymethyl cellulose 1-8 parts. The present invention can be directly brushed or sprayed on the surface of rusted or thin-layer oxidized black metal during use, and the oxide layer of the metal can be converted into phosphate and chromate, which is an excellent phosphating anti-corrosion protective layer attached to the metal surface. In order to achieve the purpose of rust removal and rust prevention, the process is simple, and the labor intensity of construction personnel can be greatly reduced.

Description

technical field [0001] The invention relates to a chemical solution, in particular to a rust-dissolving and anti-rust solution for treating metal surface corrosion. Background technique [0002] At present, metal corrosion is a common problem in the use of metal products. At present, there are many methods of rust removal, but there are certain limitations: first, the rust removal process is complicated, the process is more labor-intensive, and the second is that it is difficult to completely remove the rust. 3. It is still easy to rust after rust removal. If the weld is rusted, it is generally brushed with a wire brush, then cleaned with gasoline, then painted with a primer, and then painted to prevent the weld from re-rusting, but after this treatment, it is still easy to rust. Contents of the invention [0003] The purpose of the present invention is to provide a rust-removing and anti-rust solution with good rust removal effect and convenient and quick construction. ...

AI Technical Summary

Problems solved by technology

[0002] At present, metal corrosion is a common problem in the use of metal products. At present, there are many methods of rust removal, but there are certain limitations: first, the rust removal process is complicated, with many procedures and labor intensity; second, it is difficult to completely remove rust , the third is still easy to rust after rust removal

If the weld is rusted, it is generally brushed with a wire brush first, then cleaned with gasoline, then painted with a primer, and then painted with a top coat to prevent the weld from re-rusting, but after this treatment, it is still easy to rust