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

Magnesium alloy surface treatment method and preparation method of magnesium alloy and resin complex

A technology of surface treatment and magnesium alloy, applied in the field of magnesium alloy surface treatment and composite preparation, can solve the problems of inability to meet, low bonding strength between magnesium alloy and resin, and achieve the effect of meeting the requirements of bonding strength

Active Publication Date: 2018-05-15
广东东明新材科技有限公司
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing technologies for combining magnesium alloys and resins usually use adhesives to achieve the bonding of magnesium alloys and resins at room temperature or high temperature. In the composites of magnesium alloys and resins obtained in this way, magnesium alloys and Resin bond strength is low
There is also a method on the market that uses magnesium alloy surface treatment combined with nano-injection molding to prepare a composite of magnesium alloy and resin. Although it can improve the bonding strength of magnesium alloy and resin to a certain extent compared with the bonding method, however, The composite of magnesium alloy and resin prepared, the bonding strength of magnesium alloy and resin is still low, usually only about 10MPa
For some products, the bonding strength between magnesium alloy and resin is required to be above 35MPa. The existing methods of preparing magnesium alloy and resin composites by surface treatment of magnesium alloy combined with nano-injection molding are far from meeting the requirements of these products.

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
  • Magnesium alloy surface treatment method and preparation method of magnesium alloy and resin complex
  • Magnesium alloy surface treatment method and preparation method of magnesium alloy and resin complex
  • Magnesium alloy surface treatment method and preparation method of magnesium alloy and resin complex

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0063] The present invention also provides a method for preparing a composite of magnesium alloy and resin, including the surface treatment method for magnesium alloy as described in any one of the above embodiments. For example, the preparation method of the composite of magnesium alloy and resin also includes the following steps:

[0064]Embedding the micro-corroded magnesium alloy into an injection molding mold, injecting resin into the surface of the magnesium alloy to form a composite body of magnesium alloy and resin.

[0065] It should be noted that the micro-corrosion-treated magnesium alloy is the micro-corrosion-treated magnesium alloy in the magnesium alloy surface treatment method in any one of the above embodiments.

[0066] For example, the resin is a thermoplastic resin, and for another example, the resin has a crystalline thermoplastic resin as a main component. As another example, the thermoplastic resin is at least one of polyphenylene sulfide resin (PPS), p...

Embodiment 1

[0071] Using AZ91D magnesium alloy, first use weak alkaline degreasing agent, ultrasonic degreasing for 5 minutes, temperature 60 ℃, to remove the surface oil of magnesium alloy, wherein, the degreasing agent composition includes: 18g / L sodium pyrophosphate, 20g / L tripolymer Sodium phosphate, 25g / L sodium gluconate, 1g / L OP emulsifier, 1.5g / L P60 sodium benzenesulfonate; the magnesium alloy is taken out and washed with deionized water, and then the magnesium alloy is immersed in an acidic activator (acidic activator Activator composition: in 8g / L citric acid, 12g / L nitric acid, 10g / L sulfuric acid), activate for 1 minute at a temperature of 60°C to remove the oxide layer or oxide film on the surface of the magnesium alloy and improve the surface state of the magnesium alloy; After the alloy is taken out, it is washed with deionized water, and then the magnesium alloy is subjected to alkaline activation treatment (alkaline activator composition: 25g / L of sodium hydroxide, 25g / L ...

Embodiment 2

[0073] Using AZ91D magnesium alloy, first use weakly alkaline degreasing agent (degreasing agent composition: 17g / L sodium pyrophosphate, 15g / L sodium tripolyphosphate, 16g / L sodium gluconate, 1g / LOP emulsifier, 2g / LP60 Sodium benzenesulfonate), ultrasonic degreasing for 5 minutes, temperature 60 ℃, to remove the surface oil on the magnesium alloy; take out the magnesium alloy and wash it with deionized water, then immerse the magnesium alloy in an acidic activator (activator composition: 10g / In L citric acid, 15g / L nitric acid, 15g / L sulfuric acid), activate for 1 minute at a temperature of 60°C to remove the oxide skin on the surface of the magnesium alloy and improve the surface state of the magnesium alloy; wash the magnesium alloy with deionized water after taking it out , then magnesium alloy is carried out alkaline activation treatment (alkaline activator composition: the sodium hydroxide of 30g / L, the oxidizing agent of 25g / L, the complexing agent of 15g / L), form micro...

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
The average diameteraaaaaaaaaa
Bond strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a magnesium alloy surface treatment method and a preparation method of a magnesium alloy and resin complex. The magnesium alloy surface treatment method comprises the following steps: performing degreasing treatment on magnesium alloy; performing acid activation treatment on the magnesium alloy after degreasing treatment; performing alkaline activation treatment on the magnesium alloy after acid activation treatment; putting the magnesium alloy after alkaline activation treatment in a hole-forming pretreatment solution for hole-forming pretreatment; putting the magnesium alloy after hole-forming pretreatment in a hole-forming treatment solution for hole-forming treatment; putting the magnesium alloy after hole-forming treatment in an amine treatment solution for micro-corrosion treatment. The magnesium alloy surface treatment method provided by the invention has the benefits that a nano-scale porous membrane can be formed on the magnesium alloy surface, and theaverage diameter of a nano-porous structure is 10-50 nm, so that when the magnesium alloy is subjected to subsequent injection molding treatment, resin can enter nano-scale holes and gullies during injection molding, and the magnesium alloy and the resin have stronger bonding strength.

Description

technical field [0001] The invention relates to the technical field of material surface treatment, in particular to a magnesium alloy surface treatment method and a preparation method of a magnesium alloy and resin composite. Background technique [0002] With the development of science and technology, the requirements for various properties of materials are getting higher and higher. How to integrate the properties of various materials together to obtain new materials that surpass the properties of a single material itself has become a hot research topic today. NMT (NanoMolding Technology, nano-injection molding) technology is a method of combining metal and plastic with nanotechnology. After the metal surface is nano-treated, the plastic is directly injected on the metal surface, so that the metal and plastic can be integrally formed to form metal and plastic. The composite body can not only take into account the metal appearance and texture, but also simplify the process ...

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): C25D11/30C23F1/30B29C45/14
Inventor 龚福宝况金权
Owner 广东东明新材科技有限公司
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