Check patentability & draft patents in minutes with Patsnap Eureka AI!

Steel anode oxidation electrolyte solution and anode oxidation method thereof

An anodizing and electrolyte technology, applied in the direction of anodizing, etc., to achieve the effect of favorable film thickness, easy operation and strong bonding force

Inactive Publication Date: 2019-12-10
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem existing in the prior art that it is difficult to anodize steel, the present invention provides a steel anodic oxidation electrolyte and an anodic oxidation method thereof. The oxide film obtained on the steel surface has wear resistance, corrosion resistance, and Features such as strong matrix binding force

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Steel anode oxidation electrolyte solution and anode oxidation method thereof
  • Steel anode oxidation electrolyte solution and anode oxidation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: anodic oxidation of Q235 steel

[0030] The formula of the electrolyte solution is as follows: an aqueous solution containing 0.7 mol / L citric acid, 0.08 mol / L ammonium fluoride, 0.2 g / L glycerol, and 0.03 g / L alkylphenol polyoxyethylene ether.

[0031] Anodizing step: grind the surface of the steel workpiece (Q235 steel in this embodiment) with sandpaper, use a polishing machine to mechanically polish the ground surface, then clean the surface of the workpiece with deionized water, and dry it with cold air. Submerge the surface-pretreated workpiece in the above-mentioned anodic oxidation electrolyte for anodic oxidation treatment. The oxidation voltage is 20V, the electrolyte temperature is 20°C, the mechanical stirring is 1000r / min, and the oxidation time is 20min. After the anodic oxidation is finished, the surface of the workpiece is cleaned with deionized water and dried with cold air to obtain anodized Q235 steel.

[0032] The Q235 steel surface af...

Embodiment 2

[0034] Embodiment 2: anodic oxidation of 45 steel

[0035] The electrolyte formula is as follows: an aqueous solution containing 0.6 mol / L citric acid, 0.05 mol / L ammonium fluoride, 0.1 g / L glycerol, and 0.04 g / L alkylphenol polyoxyethylene ether.

[0036] Anodizing step: grind the surface of the steel workpiece (45 steel in this embodiment) with sandpaper, use a polishing machine to mechanically polish the ground surface, then clean the surface of the workpiece with deionized water, and dry it with cold air. Submerge the surface pretreated workpiece in the anodic oxidation electrolyte for anodic oxidation treatment. The oxidation voltage is 30V, the electrolyte temperature is 20°C, the mechanical stirring is 1200r / min, and the oxidation time is 50min. After the anodic oxidation is finished, the surface of the workpiece is cleaned with deionized water and dried with cold air to obtain 45 steel after anodic oxidation.

Embodiment 3

[0037] Embodiment 3: anodic oxidation of Q235 steel

[0038] The electrolyte formula is as follows: an aqueous solution containing 0.2 mol / L citric acid, 0.15 mol / L ammonium fluoride, 0.9 g / L glycerol, and 0.8 g / L alkylphenol polyoxyethylene ether.

[0039] Anodizing step: grind the surface of the steel workpiece (Q235 steel in this embodiment) with sandpaper, use a polishing machine to mechanically polish the ground surface, then clean the surface of the workpiece with deionized water, and dry it with cold air. Submerge the surface-pretreated workpiece in the above-mentioned anodic oxidation electrolyte for anodic oxidation treatment. The oxidation voltage is 10V, the electrolyte temperature is 10°C, the mechanical stirring is 2000r / min, and the oxidation time is 5min. After the anodic oxidation is finished, the surface of the workpiece is cleaned with deionized water and dried with cold air to obtain anodized Q235 steel.

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 belongs to the technical field of metal anode oxidation and particularly relates to a steel anode oxidation electrolyte solution and an anode oxidation method thereof. The electrolyte solution comprises 0.2-1 mol / L of citric acid, 0.01-0.15 mol / L of ammonium fluoride, 0.01-1 g / L of glycerin, 0.01-1 g / L of alkylphenol polyoxyethylene and water. The anode oxidation method comprises thesteps of polishing, burnishing and washing the surface of a steel workpiece, adopting the steel workpiece as an anode, adopting a graphite plate or a lead plate as a cathode, utilizing the electrolyte solution to carry out anode oxidation treatment, and enabling a layer of oxidation film to be generated on the surface of the steel workpiece. Surface oxide obtained through the steel anode oxidation electrolyte solution and the anode oxidation method has the advantages of being high in combination force, resistant to wear and resistant to corrosion, and the problem that in the prior art, anodeoxidation treatment cannot be carried out on steel easily.

Description

technical field [0001] The invention belongs to the technical field of metal anodic oxidation, and in particular relates to an iron and steel anodic oxidation electrolyte and an anodic oxidation method thereof. Background technique [0002] Anodizing is a widely used metal surface treatment technique, however, anodizing is often limited to the treatment of aluminum alloys. With the development of technology, anodic oxidation technology of magnesium alloy and titanium alloy has also been developed. Like aluminum alloys, magnesium alloys and titanium alloys are also self-passivating metals, which can form dense oxide films in the air to protect the substrate. thick oxide layer. Iron and steel materials are difficult to anodize due to their own electrochemical properties. Aqueous solutions of sulfuric acid or oxalic acid are often used as electrolytes for anodizing of aluminum alloys, especially sulfuric acid-based electrolytes. In such electrolytes, steel is easy to corrode...

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): C25D11/34
CPCC25D11/34
Inventor 罗松郑丽汪洋罗宏罗昌森
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com