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

Method for preparing DLC protective coating on surface of magnesium alloy

A technology of protective coating and magnesium alloy, which is applied in the direction of metal material coating process, coating, gaseous chemical plating, etc., can solve the problems of poor corrosion resistance and low strength, and achieve improved service life, low cost, and easy handling The effect of simple process

Inactive Publication Date: 2018-12-18
JIAMUSI UNIVERSITY
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problems of poor corrosion resistance and low strength of existing magnesium alloys, and provides a method for preparing a DLC protective coating on the surface of magnesium alloys

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
  • Method for preparing DLC protective coating on surface of magnesium alloy
  • Method for preparing DLC protective coating on surface of magnesium alloy
  • Method for preparing DLC protective coating on surface of magnesium alloy

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0034] Embodiment one: the preparation method of DLC protective coating on the surface of magnesium alloy is to carry out according to the following steps:

[0035] 1. Magnesium alloy surface roughening treatment: Use sandpaper to treat the surface of the magnesium alloy sample, ultrasonically clean it, and dry it to obtain the sample to be etched. The sample to be etched is immersed in a 0.1mol / L nitric acid solution at room temperature. Etching treatment, and then ultrasonic cleaning in absolute ethanol solution to remove residual reaction products on the surface, and drying to obtain the sample to be sputtered;

[0036] 2. Sputtering cleaning: Put the sample to be sputtered into the vacuum chamber, vacuumize, and wait for the vacuum degree in the vacuum chamber to be less than 10 - 3 Pa, pass argon or mixed gas into the vacuum chamber to a vacuum degree of 1 to 3 Pa, turn on the high-frequency high-voltage pulse power supply, adjust the output of the high-voltage pulse pow...

specific Embodiment approach 2

[0040] Embodiment 2: This embodiment differs from Embodiment 1 in that: in step 2, the voltage value of the output pulse of the high-frequency high-voltage pulse power supply is 1-6 kV, the pulse frequency is 400-1000 Hz, and the pulse width is 15-20 μs. Others are the same as the first embodiment.

specific Embodiment approach 3

[0041] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the process parameters of Si transition layer preparation in step three: pulse voltage value is 1~6kV, pulse frequency is 400~1000Hz, pulse width is 15~ 20μs. Others are the same as those in Embodiment 1 or 2.

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention relates to the technical field of material surface treatment techniques, in particular to a method for preparing a DLC protective coating on the surface of magnesium alloy. By adoption of the method for preparing the DLC protective coating on the surface of the magnesium alloy, the problems that existing magnesium alloy is poor in corrosion resistance and low in strength are solved.The preparation method comprises the first step of surface roughening of the magnesium alloy, the second step of sputter cleaning, the third step of preparation of Si transition layer, and the fourthstep of preparation of a Si-DLC film. The preparation method is used for preparing the DLC protective coating on the surface of the magnesium alloy.

Description

technical field [0001] The invention relates to the technical field of material surface treatment, in particular to a method for preparing a DLC protective coating on the surface of a magnesium alloy. Background technique [0002] Nowadays, magnesium alloy has been widely used in various fields. Compared with other metal materials, the advantages of magnesium alloy are mainly manifested in the following aspects: light weight, good shock absorption and good compression resistance, electrical conductivity and thermal conductivity. Good, more stable size, creep resistance, high productivity, good machining performance, strong anti-electromagnetic interference ability, good reproducibility. Due to the advantages of magnesium alloys, its structural parts have become the first choice for lightweight applications in industry, especially in computers, automobiles, military aviation and portable communication equipment. In the automobile industry, lightweight magnesium alloy materia...

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): C23C16/26C23C16/02
CPCC23C16/0227C23C16/0272C23C16/26
Inventor 吴明忠马振庄明辉李慕勤
Owner JIAMUSI UNIVERSITY
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