Surface treatment and coating technology for magnesium alloy surface to resist neutral salt spray test

A surface treatment and coating technology, applied in the field of metal surface treatment, can solve the problems of magnesium alloy corrosion and protection not being well solved, and achieve the effects of high hardness and toughness, low porosity and strong adhesion

Inactive Publication Date: 2012-07-11
DONGGUAN EONTEC CO LTD
View PDF2 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to provide a surface treatment and coating process protection technology for magnesium alloy surface resistance to neutral salt spray test, by performing micro-arc oxidation, electrophoresis, spraying acrylic low paint and spraying organic silicon ceramic composite on the

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

Example Embodiment

[0037] The present invention will be described in detail in combination with specific embodiments.

[0038] A surface treatment and coating process for magnesium alloy surface resistance to neutral salt spray test. The process flow includes: micro-arc oxidation-electrophoresis-spraying acrylic primer-spraying organic silicon ceramic composite topcoat;

[0039] The chemical solution ratio for the micro-arc oxidation is: Na 2 SiO 3 3~7g / l, KF 6~10g / l, KOH 9~13g / l

[0040] The bath solution for electrophoresis is: PD8000 black slurry: 10-14%, PD8000 emulsion: 30-42%, additives: 1-3%, water: the balance;

[0041] Electrophoresis parameters: voltage 220V, time 3~6min, drying curing temperature 160~180℃, curing time 20~30min, pH 5~6, bath temperature 25~28℃;

[0042] The organic silicon ceramic composite topcoat material is: organic silicon coating, nano ceramic coating, and the ratio is 3:1.

[0043] The surface treatment and coating process for the neutral salt spray test of the magnesium a...

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 surface treatment and coating technology for a magnesium alloy surface to resist a neutral salt spray test. The technology comprises the steps of micro-arc oxidation, electrophoresis, spraying of acrylic primer and spraying of organosilicon ceramic composite finish paint, wherein the materials of the organosilicon ceramic composite finish paint include organosilicon coating and nano ceramic coating. In the invention, the magnesium alloy surface is subjected to the surface treatment and coating technology resisting the neutral salt spray test; after the micro-arc oxidation treatment, the electrochemical impedance of the magnesium alloy surface is remarkably improved; and meanwhile, the magnesium alloy micro-arc oxidation protection layer contains a high-temperature change phase, and the film layer has high hardness and toughness and good wear resistance. After the electrophoresis, the film has uniform thickness, strong cohesion and high corrosion resistance and is compatible with multiple finish paints. Particularly, the acrylic resin with strong adhesion, low pollution and low cost can be densely attached to the electrophoretic paint so as to further improve the impact resistance; and after the organosilicon ceramic composite finish paint is sprayed to the surface of the acrylic primer, the magnesium alloy obtains the characteristics of heat and cold resistance, wear resistance, high hardness and the like.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment and relates to a magnesium alloy surface protection technology, in particular to a surface treatment and coating process protection technology for the neutral salt spray test of the magnesium alloy surface. Background technique [0002] Magnesium and magnesium alloy materials have low density, high specific strength and specific stiffness, and excellent electromagnetic shielding and damping performance, etc., so they have been widely used in the automotive, aviation, and electronics industries. With the changes in the output of magnesium and magnesium alloy materials, the price of magnesium metal has dropped significantly, and the advantages of light weight and high strength of magnesium alloy have been highlighted again, making it gradually become the preferred material for lightweight automobiles and motorcycles in the industry. In recent years, although gratifying progress has b...

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): C23C28/00
Inventor 周剑汤铁装李卫荣曾月梅
Owner DONGGUAN EONTEC CO LTD
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