Passivation treatment solution for improving corrosion resistance of metal surface

Abstract

The invention discloses a passivation treatment solution for improving the corrosion resistance of a metal surface. The passivation treatment solution comprises the following substances of sulfuric acid, citric acid, tartaric acid, nitric acid, hydrogen peroxide, sodium hydroxide, a silane coupling agent, konjac glucomannan, diethyl carbonate, methylN-phneylCarbamate, tetrabutyl titanate, ethyl alcohol and water. According to the passivation treatment solution, the protection effect on the metal surface is obviously improved, so that the corrosion resistance of the material is improved, the service life is prolonged, and the passivation treatment solution has great popularization and application values.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a passivation treatment solution for improving the corrosion resistance of metal surfaces. Background technique [0002] With the development of society, the popularity of automobiles in the family is getting higher and higher, and the continuous improvement of market demand has brought about the further development of the automobile processing industry. Automobiles are made up of many parts, most of which are made of steel. However, ordinary steel will have surface corrosion problems in long-term use. In order to improve its service quality and life, it needs to be processed on its surface before it can be put into use. Now most of the steel surface is usually galvanized to improve the corrosion resistance and rust resistance of the steel. Although it has a certain protective effect, it is far from enough to rely solely on the protection of the galva...

AI Technical Summary

Problems solved by technology

Ordinary steel will have the problem of surface corrosion in long-term use. In order to improve its service quality and service life, it needs to be processed on the surface before it can be put into use.

Now most of the steel surface is usually galvanized to improve the corrosion resistance and rust resistance of the steel. Although it has a certain protective effect, it is far from enough to rely solely on the protection of the galvanized layer in long-term use. for further improvement

Passivation is a common treatment method for steel surfaces, and its treatment effect is closely related to the quality of the passivation solution. Most of the existing passivation solutions have problems such as poor passivation treatment effect, which affects the quality and life of the workpiece. , needs further improvement