Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Micro-arc oxidation method capable of controlling compositions of oxide ceramic coatings on surfaces of non-ferrous metals

A technology of surface oxide and ceramic coating, applied in the direction of anodic oxidation, etc., can solve problems such as no related reports, and achieve the effect of broad application prospects, simple use of equipment, and selective control

Active Publication Date: 2016-02-10
NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A reverse osmosis membrane system is set in the micro-arc oxidation tank. During the oxidation process, the reverse osmosis membrane is used to select the ions in the electrolyte in a directional manner, so that the selected ions are continuously enriched around the workpiece, thereby improving the composition of the oxide ceramic coating. There is no relevant report on regulation research

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
  • Micro-arc oxidation method capable of controlling compositions of oxide ceramic coatings on surfaces of non-ferrous metals

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] In this embodiment, a combination of reverse osmosis technology and micro-arc oxidation technology is used to prepare an oxide ceramic coating on the surface of a non-ferrous metal, and the non-ferrous metal is magnesium. combine figure 1 In this embodiment, the micro-arc oxidation method with controllable composition of the oxide ceramic coating on the surface of the non-ferrous metal comprises the following steps:

[0030] Step 1, select the first reverse osmosis membrane 2-1 and the second reverse osmosis membrane 2-2; the aperture D of the selected first reverse osmosis membrane 2-1 1 Meet: 2R x ≤D 1 ≤2.2R x , the pore diameter D of the selected second reverse osmosis membrane 2-2 2 Satisfied: D 2 x , the R x is the ionic radius of the soluble salt of the element to be deposited, R x The unit of is angstroms; in this embodiment, the element to be deposited is aluminum, and the aluminate ionic radius R x =2.5 angstroms, so the aperture of the first reverse os...

Embodiment 2

[0040] In this embodiment, a combination of reverse osmosis technology and micro-arc oxidation technology is used to prepare an oxide ceramic coating on the surface of a non-ferrous metal, and the non-ferrous metal is an aluminum alloy. combine figure 1 In this embodiment, the micro-arc oxidation method with controllable composition of the oxide ceramic coating on the surface of the non-ferrous metal comprises the following steps:

[0041] Step 1, select the first reverse osmosis membrane 2-1 and the second reverse osmosis membrane 2-2; the aperture D of the selected first reverse osmosis membrane 2-1 1 Meet: 2R x ≤D 1 ≤2.2R x , the pore diameter D of the selected second reverse osmosis membrane 2-2 2 Satisfied: D 2 x , the R x is the ionic radius of the soluble salt of the element to be deposited, R x The unit is Angstrom; in this embodiment, the element to be deposited is silicon, and the ion radius R of the silicate x =3.5 angstroms, so the aperture of the first rev...

Embodiment 3

[0051] In this embodiment, a combination of reverse osmosis technology and micro-arc oxidation technology is used to prepare an oxide ceramic coating on the surface of a non-ferrous metal, and the non-ferrous metal is a titanium alloy. combine figure 1 In this embodiment, the micro-arc oxidation method with controllable composition of the oxide ceramic coating on the surface of the non-ferrous metal comprises the following steps:

[0052] Step 1, select the first reverse osmosis membrane 2-1 and the second reverse osmosis membrane 2-2; the aperture D of the selected first reverse osmosis membrane 2-1 1 Meet: 2R x ≤D 1 ≤2.2R x , the pore diameter D of the selected second reverse osmosis membrane 2-2 2 Satisfied: D 2 x , the R x is the ionic radius of the soluble salt of the element to be deposited, R x The unit is Angstrom; in this embodiment, the element to be deposited is zirconium, and the ion radius of fluorozirconate is R x =5 angstroms, so the aperture of the firs...

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 provides a micro-arc oxidation method capable of controlling compositions of oxide ceramic coatings on surfaces of non-ferrous metals. The micro-arc oxidation method comprises the steps of 1, selecting reverse osmosis membranes; 2, dividing a micro-arc oxidation tank into three work areas through the reverse osmosis membranes; 3, enabling the first non-oxidation work area to be communicated with the second non-oxidation work area, arranging a pressure pump, adding electrolytes into the micro-arc oxidation tank, inserting an anode, a first cathode and a second cathode into the oxidation work area and enabling the electrolytes to flow in a directional mode so as to carry out ion selection; 4, carrying out micro-arc oxidation treatment to obtain the oxide ceramic coatings. According to the micro-arc oxidation method, the reverse osmosis technology and the micro-arc oxidation technology are combined for preparing the oxide ceramic coatings, the regulation and control method of the compositions of the oxide ceramic coatings is simple, the investment cost is low, the use effect is good, the practical value is high, the compositions of the ceramic coatings can be effectively and selectively regulated and controlled, and the performance of current micro-arc oxidation ceramic coatings can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of surface treatment of nonferrous metals, and in particular relates to a micro-arc oxidation method with controllable composition of an oxide ceramic coating on the surface of nonferrous metals. Background technique [0002] Micro-arc oxidation (MAO) technology originated from the study of spark discharge phenomenon during metal anode polarization by German scientists Giintherschlze and Betz in the 1930s, but it was not until the 1970s that the former Soviet scientist A.MOPKOS correctly recognized this phenomenon. spark discharge phenomenon. As a result of spark discharge, a ceramic film with high protective properties is formed on the electrode surface. This method is called micro-arc oxidation or micro-plasma oxidation, etc. Because this technology is simple in material preparation and easy to implement, it has attracted more and more experts and scholars' attention, and has become one of the hot spots i...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/02
Inventor 李宏战李争显杜继红杨海彧李少龙
Owner NORTHWEST INSTITUTE FOR NON-FERROUS METAL RESEARCH
Features
  • Generate Ideas
  • 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