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Magnesium alloy surface treatment method and preparation method of composite body of magnesium alloy and resin

A surface treatment, magnesium alloy technology, applied in the field of materials, can solve the problems of inability to meet product structural strength requirements, low bonding strength between magnesium alloy and resin, etc.

Active Publication Date: 2018-04-06
广东东明新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional magnesium alloy and resin combined forming technology usually uses adhesives to achieve the bonding of magnesium alloy and resin at room temperature or high temperature, so that a composite of magnesium alloy and resin is obtained, and the bonding strength of magnesium alloy and resin is low. , unable to meet the structural strength requirements of the product

Method used

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  • Magnesium alloy surface treatment method and preparation method of composite body of magnesium alloy and resin
  • Magnesium alloy surface treatment method and preparation method of composite body of magnesium alloy and resin
  • Magnesium alloy surface treatment method and preparation method of composite body of magnesium alloy and resin

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preparation example Construction

[0048] The present invention also provides a method for preparing a composite of magnesium alloy and resin, including the magnesium alloy surface treatment method described in any of the above embodiments; or, using the magnesium alloy surface treatment method described in any of the above embodiments to achieve . As another example, the method for preparing the composite of magnesium alloy and resin adopts the magnesium alloy substrate after the micro-etching treatment in the magnesium alloy surface treatment method described in any of the above embodiments for subsequent treatment. . As another example, the preparation method of the composite of magnesium alloy and resin comprises the following steps:

[0049] Embedding the micro-etched magnesium alloy substrate into an injection molding mold, injecting resin into the surface of the magnesium alloy substrate, and forming a composite of magnesium alloy and resin in which the resin is integrated with the magnesium alloy after...

Embodiment 1

[0057] Using AZ91D magnesium alloy, first use a weak alkaline degreasing agent, ultrasonic degreasing for 5 minutes, temperature 60 ℃, to remove the oil on the surface of the magnesium alloy, wherein the degreasing agent components include: 20g / L sodium pyrophosphate, 15g / L tripolymer Sodium phosphate, 10g / L sodium gluconate, 3g / L OP emulsifier and 1g / L P60 sodium benzenesulfonate; take out the magnesium alloy and wash it with deionized water, then immerse the magnesium alloy in the acidic activator to activate 1 minute, the temperature is 60°C, to remove the oxide skin on the surface of the magnesium alloy and improve the surface state of the magnesium alloy. The acidic activator components are: 10g / L citric acid, 15g / L nitric acid and 15g / L sulfuric acid; after taking out the magnesium alloy Wash with deionized water, and then carry out alkaline activation treatment on the magnesium alloy to form micron-scale unevenness on the surface of the magnesium alloy, wherein the alkal...

Embodiment 2

[0059] Using AZ91D magnesium alloy, first use weak alkaline degreasing agent (degreasing agent composition: 20g / L sodium pyrophosphate, 15g / L sodium tripolyphosphate, 10g / L sodium gluconate, 3g / LOP emulsifier, 1g / LP60 benzene Sodium sulfonate), ultrasonic degreasing for 5 minutes at a temperature of 60°C, to remove the surface oil on the magnesium alloy; after taking out the magnesium alloy, wash it with deionized water, and then immerse the magnesium alloy in an acidic activator (acidic 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...

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Abstract

The invention discloses a preparation method of a composite body of a magnesium alloy and resin. A magnesium alloy surface treatment method comprises the following steps that a magnesium alloy base material is provided; the magnesium alloy base material is subjected to ungrease treatment; the magnesium alloy base material subjected to ungrease treatment is subjected to acid activating treatment; the magnesium alloy base material subjected to acid activating treatment is subjected to alkaline activating treatment; the magnesium alloy base material subjected to alkaline activating treatment is subjected to anodic oxidation treatment; and the magnesium alloy base material subjected to anodic oxidation treatment is placed into amine treatment liquid to be subjected to microcorrosion treatment.According to the magnesium alloy surface treatment method, a nanoscale porous membrane can be formed on the surface of the magnesium alloy, a plurality of thin and small grooves and nanoscale holes are formed in the surface of the nanoscale porous membrane, through the holes and the grooves, when the magnesium alloy base material is subjected to subsequent injection molding treatment, during injection molding, the resin enters the nanoscale holes and the grooves, and thus high bonding strength is achieved between the magnesium alloy base material and the resin part.

Description

technical field [0001] The invention relates to the field of material technology, 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 appearance and texture of metal, but also simplify the design of product mech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/30C23F1/40B29C45/14
CPCB29C45/14B29C2045/14868C23F1/40C25D11/30
Inventor 龚福宝霍浩何伟东邝金才况金权
Owner 广东东明新材科技有限公司
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