Environment-friendly type anti-rust phosphating solution and preparation method thereof

Abstract

The invention discloses an environment-friendly type anti-rust phosphating solution and a preparation method thereof. The environment-friendly type anti-rust phosphating solution is prepared from the following raw materials in parts by weight: 48-58 parts of water, 12-16 parts of zinc nitrate, 3-7 parts of ammonium peroxydisulfate, 4-8 parts of propylene glycol, 3-7 parts of polyethylene benzyl trimethyl quaternary ammonium salt, 20-30 parts of butoxyethyl acetate, 3-6 parts of dinitrosopentamethylene tetraamine, 3-6 parts of sodium metanitrobenzene sulfonate, 3-6 parts of ethylenediaminetetraacetic acid, 4-7 parts of alcohol ether carboxylate and 4-6 parts of polyvinylpyrrolidone. Compared with the current phosphating solution and a phosphating process, the environment-friendly type anti-rust phosphating solution is adopted to carry out phosphating treatment on a workpiece, so that the phosphating process is simplified, the phosphating efficiency is improved, and the phosphating cost is reduced; meanwhile, a phosphating film formed by the environment-friendly type anti-rust phosphating solution is more compact and is more uniform, can effectively prevent corrosion, and is safe and environmentally friendly; and the preparation method is simple and is low in cost.

Description

Technical field [0001] The invention involves an environmentally friendly rust -proof phosphorus solution and its preparation method. Background technique [0002] Phosphate is a commonly used pre -treatment technology. In principle, it should be a chemical conversion membrane treatment. It is mainly used for phosphorification of steel surfaces. Nonferrous metals (such as aluminum and zinc) can also be used.Phosphorusization is a process of chemical and electrochemical reactions to form a phosphate chemical conversion membrane. The phosphate conversion membrane formed is called phosphate film.The main purpose of phosphorification is to provide protection to the metal of the substrate to prevent metal corrosion to a certain extent; for painting before paint to improve the adhesion and corrosion capacity of the paint film layer;Lubrication.The phosphate process includes chemical and electrochemical reactions.The phosphorization response mechanism of different phosphate systems and ...

AI Technical Summary

Problems solved by technology

Although scientists have done a lot of research in this area, it is not yet fully understood

After the end of World War II, there were few breakthroughs in phosphating technology, but steady development and improvement.

However, the rust-removing and phosphating agents currently on the market are mainly used to clean and remove rust with hydrochloric acid, nitric acid, and sulfuric acid according to different metals, and generate toxic and choking yellow and red smoke, resulting in serious corrosive three-waste pollution, and are easy to clean. The metal itself of the parts: the outer layer dissolves to form over-corrosion, and the inner hydrogen permeates to cause hydrogen embrittlement, which endangers the safety of use and shortens the service life. At the same time, it does not meet the needs of clean production and development in the existing society