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Magnesium alloy conversion coating enhancement treatment agent and magnesium alloy surface treatment method

A technology of enhanced treatment and surface treatment, which is applied in the direction of metal material coating process, etc., can solve the problems of being easily scratched and damaged, and the surface of magnesium alloy is corroded and oxidized, so as to improve the hardness and scratch resistance effect, and improve the corrosion resistance effect , enhance the effect of various performance

Active Publication Date: 2022-08-05
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

For example, Chinese patents CN101096761A and CN101418441A all adopt phosphating process, and a phosphide conversion film is formed on the surface of the magnesium alloy. Although the formed phosphide conversion film is a chromium-free conversion film, the conversion film is very thin and is easily scratched. The surface of the magnesium alloy is easily corroded and oxidized again in the air

Method used

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  • Magnesium alloy conversion coating enhancement treatment agent and magnesium alloy surface treatment method
  • Magnesium alloy conversion coating enhancement treatment agent and magnesium alloy surface treatment method
  • Magnesium alloy conversion coating enhancement treatment agent and magnesium alloy surface treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Degreasing and degreasing treatment: Immerse the magnesium alloy workpiece in the degreasing agent, treat it at 60 °C for 6 minutes, and then enter the pickling activation treatment operation after washing with water. The degreasing agent includes the following components: sodium hydroxide 10 g / L, HEDP 20 g / L, sodium pyrophosphate 5 g / L, 1309 iso-alcohol ether 1.25 g / L, alkyl glycoside 1 g / L, and the balance is water.

[0033] Pickling Activation Treatment: Immerse the degreasing and degreasing magnesium alloy workpiece in M330 pickling agent (produced by Dongming Chemical Industry, Boluo County), the usage amount is 8-10% for slotting, under the condition of 50-60 ℃, treat 1 -2min, after washing with water, enter the table adjustment ash removal operation.

[0034] Surface adjustment and ash removal treatment: Immerse the magnesium alloy workpiece after pickling and activation treatment in M440 surface adjustment agent (produced by Dongming Chemical Industry, Boluo Co...

Embodiment 2

[0040] The difference from Example 1 is that the magnesium alloy conversion coating enhancement treatment agent of Example 2 includes the following components: myristic acid 3 g / L, oleic acid 5 g / L, TX-10 emulsifier 5 g / L, no Water ethanol 15 g / L, monoethanolamine 5 g / L, and the balance is water.

Embodiment 3

[0042] The difference from Example 1 is that the magnesium alloy conversion coating enhancement treatment agent of Example 3 includes the following components: lauric acid 3 g / L, myristic acid 3 g / L, oleic acid 3 g / L, TX-10 emulsification 5 g / L of agent, 15 g / L of anhydrous ethanol, 5 g / L of monoethanolamine, and the balance is water.

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Abstract

The invention belongs to the field of metal surface treatment, and discloses a magnesium alloy conversion film enhancement treatment agent and a magnesium alloy surface treatment method. The magnesium alloy conversion coating enhancement treatment agent provided by the present invention includes the following components: 3-15 g / L of lauric acid and / or myristic acid, 3-15 g / L of oleic acid, 3-15 g / L of TX-10 emulsifier , ethanol 3~15g / L, sodium hydroxide or monoethanolamine 1~5g / L, the balance is water, which can quickly form a protective film on the surface of magnesium alloy conversion film, significantly improve the hardness and hardness of magnesium alloy conversion film. Anti-scratch effect, at the same time, the magnesium alloy conversion film has the function of anti-fingerprint and improves the corrosion resistance effect of the magnesium alloy conversion film. Environmental protection.

Description

technical field [0001] The invention relates to the field of metal surface treatment, in particular to a magnesium alloy conversion film enhancement treatment agent and a magnesium alloy surface treatment method. Background technique [0002] As a widely used industrial material, magnesium alloys are favored by various industries such as aerospace, automobile, electronics, etc. , precision instruments, etc. Magnesium alloys are mainly used in the fields of aerospace, electronics and automobiles. In order to improve the anti-corrosion requirements of magnesium alloy devices, it is necessary to form a protective layer on the surface of magnesium alloys. For example, Chinese patents CN101096761A and CN101418441A all adopt the phosphating process to form a phosphide conversion film on the surface of the magnesium alloy. Although the formed phosphide conversion film is a chromium-free conversion film, the conversion film is very thin and easily scratched. The surface of magnesi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C22/83
CPCC23C22/83
Inventor 熊猛况金权李远衡
Owner 广东东明新材科技有限公司
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