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

Technical method for imitating copper and gold on surface of magnesium alloy

A process method, magnesium alloy technology, applied in the direction of metal material coating process, etc., can solve the problems of difficult realization of large-scale magnesium products, poor impact resistance, complex equipment, etc., to achieve large-scale industrial production, low cost, and simple equipment Effect

Inactive Publication Date: 2014-07-16
CENT SOUTH UNIV
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing anodic oxidation or micro-arc oxidation process is complicated in process, high in cost and complex in equipment required, and the treatment liquid often contains elements harmful to human health and the environment, such as chromium, cobalt and fluorine, which are harmful to large magnesium products. It is difficult to realize, and the film formed by micro-arc oxidation is easy to crack, has poor impact resistance, and is easy to fall off
In particular, these two processes are difficult to imitate copper and imitate gold on magnesium alloy, so that the surface has the luster and texture of copper or gold

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
  • Technical method for imitating copper and gold on surface of magnesium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Polish the AZ31 magnesium alloy plate and wash it with distilled water. Put it into the passivation solution for passivation coloring, the temperature is 100°C, the passivation solution is 0.8g / L sodium triphosphate aqueous solution, pH=8.0. Take it out after 7 hours of heat preservation, put it into water-based acrylic resin for dip-coating and sealing, and immediately take it out and put it in an oven for baking at 150°C for 10 minutes. Various performance tests were carried out on the baked samples, and the test results are shown in Table 1.

Embodiment 2

[0046] Polish the AZ31 magnesium alloy plate and wash it with distilled water. Put it in deionized water for passivation and coloring, the temperature is 100°C, keep it warm for 10 hours, take it out, then put it into water-based acrylic epoxy resin for dip coating and sealing, take it out and put it in an oven for baking, the baking temperature is 160°C , baking time 10min. Various performance tests were carried out on the baked samples, and the test results are shown in Table 1.

Embodiment 3

[0048] Polish the AZ61 magnesium alloy plate and wash it with distilled water. Put it into the passivation solution for passivation coloring, the temperature is 85°C, the passivation solution is 1.5g / L sodium triphosphate aqueous solution, pH=10.0. After 8 hours of heat preservation, take it out, put it in fluororesin for dip coating and sealing, take it out to dry, put it in an oven for baking, the baking temperature is 220°C, and the baking time is 20 minutes. Various performance tests were carried out on the baked samples, and the test results are shown in Table 1.

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 technical method for imitating copper and gold on the surface of magnesium alloy. The technical method comprises the steps of soaking ground, polished or wiredrawn magnesium alloy into a passivating solution to passivate and color, wherein the passivating solution is water or a water solution containing at least one orthophosphate; keeping the temperature at 80-100 DEG C for 2-10h, and then, sealing a hole by using colorless and transparent waterborne resin; next, baking at the temperature of 120-260 DEG C. The magnesium alloy obtained by the invention finally has the gloss or texture of copper or gold and is relatively good in corrosion and mildew resistance. The technical method disclosed by the invention is reasonable in process, simple in process flow, low in cost, safe in production process, high in efficiency, free of acidic waste liquid discharge and special equipment and environmental friendly in process; the passivating and coloring solution is pollution-free and nontoxic; in addition, the obtained product has the gloss and texture of metal, is attractive in appearance and relatively high in corrosion and mildew resistance, and has a favorable application prospect.

Description

technical field [0001] The invention relates to a treatment method for the surface of a magnesium alloy, in particular to a process method for imitating copper and imitating gold on the surface of a magnesium alloy, which belongs to the metal surface treatment technology. Background technique [0002] Magnesium alloy is considered to be the "green material" with the most development and application potential in the 21st century. It has the characteristics of high specific strength, low density, and good shock resistance. Due to its environmental protection and good recyclability, magnesium alloys It is widely used in aviation, aerospace, automobile, home appliances, biomaterials and other fields. However, magnesium alloys have poor corrosion resistance, the surface is easily oxidized, and it is not easy to keep bright, which has become a bottleneck restricting the use of magnesium alloys. [0003] In order to improve the corrosion resistance of magnesium alloys and maintain...

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): C23C22/68C23C22/60
Inventor 杨续跃张至柔张笃秀张朋刘楚明
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com