Passivation treatment solution for improving corrosion resistance of metal surface

A passivation treatment and metal surface technology, applied in the field of metal surface treatment, can solve the problems affecting the quality and life of the workpiece, poor passivation treatment effect, insufficient protection of the galvanized layer, etc., to improve the flatness and spreadability, enhance Surface protection effect, effect of improving effect

Inactive Publication Date: 2018-05-18
刘珍
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A passivation treatment solution for improving the corrosion resistance of metal surfaces, consisting of the following substances by weight:

[0016] 5 parts of sulfuric acid, 2 parts of citric acid, 1 part of tartaric acid, 4 parts of nitric acid, 2 parts of hydrogen peroxide, 0.2 parts of sodium hydroxide, 3 parts of silane coupling agent, 1 part of konjac gum, 1 part of diethyl carbonate, 0.5 parts of aniline Methyl formate, 8 parts of n-butyl titanate, 220 parts of ethanol, 900 parts of water.

[0017] Further, the silane coupling agent is silane coupling agent kh550.

Embodiment 2

[0019] A passivation treatment solution for improving the corrosion resistance of metal surfaces, consisting of the following substances by weight:

[0020] 6 parts of sulfuric acid, 3 parts of citric acid, 2 parts of tartaric acid, 5 parts of nitric acid, 3 parts of hydrogen peroxide, 0.3 parts of sodium hydroxide, 5 parts of silane coupling agent, 2 parts of konjac gum, 1.5 parts of diethyl carbonate, 0.8 parts of aniline Methyl formate, 9 parts of n-butyl titanate, 230 parts of ethanol, 950 parts of water.

[0021] Further, the silane coupling agent is silane coupling agent kh560.

Embodiment 3

[0023] A passivation treatment solution for improving the corrosion resistance of metal surfaces, consisting of the following substances by weight:

[0024] 7 parts of sulfuric acid, 4 parts of citric acid, 3 parts of tartaric acid, 6 parts of nitric acid, 4 parts of hydrogen peroxide, 0.4 parts of sodium hydroxide, 6 parts of silane coupling agent, 3 parts of konjac gum, 2 parts of diethyl carbonate, 1 part of aniline Methyl formate, 10 parts of n-butyl titanate, 240 parts of ethanol, 1000 parts of water.

[0025] Further, the silane coupling agent is silane coupling agent kh570.

[0026] The passivation solution prepared by the invention can increase the corrosion current density value of the metal by more than 30%, obviously improve its corrosion resistance, and correspondingly prolong its service life by more than 20%, which is of great popularization and application value.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C23C22/50
CPCC23C22/50
Inventor 刘珍
Owner 刘珍
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap