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A kind of preparation method of wear-resistant, scratch-resistant, corrosion-resistant metal surface film layer

A metal surface, scratch-resistant technology, applied in the coating process of metal materials, devices for coating liquid on the surface, coatings, etc., can solve the problem that cannot meet the actual application requirements of complex environments, the film layer has a single function, and is prone to corrosion and other problems, to achieve the effects of easy large-scale industrial processing, overcoming the relatively single function and wide application range

Active Publication Date: 2017-12-19
宁波摩尔克斯灯杆技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the active chemical properties of these materials, they are easily corroded in contact with the surrounding environment, and are often accompanied by damage caused by wear, scratches, etc. during use.
Although the current metal surface treatment methods can slow down the occurrence of corrosion to a certain extent, they have little effect on the great harm caused by local damage caused by wear and scratches, and rapid corrosion of the damaged parts.
It can be seen that the film layer prepared by the existing metal surface treatment method has the defect that the function is relatively single and cannot meet the actual application requirements in complex environments.

Method used

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  • A kind of preparation method of wear-resistant, scratch-resistant, corrosion-resistant metal surface film layer
  • A kind of preparation method of wear-resistant, scratch-resistant, corrosion-resistant metal surface film layer

Examples

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Embodiment 1

[0028] A method for preparing a wear-resistant, scratch-resistant, and corrosion-resistant 2024 aluminum alloy surface film layer, the specific steps are as follows:

[0029] ① Boiling rare earth salt solution treatment: immerse the cleaned 2024 aluminum alloy workpiece in a glass container with a cover filled with boiling cerium nitrate rare earth salt solution with a concentration of 0.0010 mol / liter, seal and boil for 30 minutes, then take out the workpiece, and use pure Rinse with water, dry with compressed air;

[0030] The ratio of the volume of the rare earth salt solution to the area of ​​the metal workpiece is 100 liters: 1 square meter (same as other embodiments).

[0031] ②Self-assembly modification treatment: Soak the workpiece treated in step ① in a chitosan solution with a concentration of 3 g / L at 40°C for 20 minutes, take it out and rinse it with pure water; then place the workpiece at a concentration of 6 at 30°C. Soak in g / L polymethacrylic acid solution, pu...

Embodiment 2

[0043] A method for preparing a wear-resistant, scratch-resistant and corrosion-resistant AZ61 magnesium alloy surface film layer, the specific steps are as follows:

[0044] ① Boiling rare earth salt solution treatment: immerse the clean AZ61 magnesium alloy workpiece in a glass container with a cover filled with boiling lanthanum nitrate rare earth salt solution with a concentration of 0.0005 mol / liter, seal and boil for 60 minutes, then take out the workpiece, and use pure Rinse with water, dry with compressed air;

[0045] ② Self-assembly modification treatment: Soak the workpiece treated in step ① in a chitosan solution with a concentration of 2 g / L at 30°C for 30 minutes, take it out and rinse it with pure water; then place the workpiece at a concentration of 8 at 20°C. Soak in g / L polymethacrylic acid solution, pure water, polyethyleneimine solution with a concentration of 4 g / L, and pure water for 25 minutes, 4 seconds, 25 minutes, and 4 seconds, and repeat this altern...

Embodiment 3

[0050] A method for preparing a wear-resistant, scratch-resistant and corrosion-resistant pure copper surface film layer, the specific steps are as follows:

[0051] ① Boiling rare earth salt solution treatment: immerse the clean pure copper workpiece in a glass container with a lid filled with boiling neodymium nitrate rare earth salt solution with a concentration of 0.0015 mol / liter, seal and boil for 20 minutes, then take out the workpiece, wash with pure water Rinse, blow dry with compressed air;

[0052] ② Self-assembly modification treatment: soak the workpiece treated in step ① in a chitosan solution at a concentration of 5 g / L at 50°C for 10 minutes, take it out and rinse it with pure water; then place the workpiece at a concentration of 10 at 40°C. Soak in g / L polymethacrylic acid solution, pure water, polyethyleneimine solution with a concentration of 6 g / L, and pure water for 20 minutes, 3 seconds, 20 minutes, and 3 seconds, and repeat this alternate soaking process...

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Abstract

The invention provides a preparation method for metal surface films resistant to abrasion, scratch and corrosion. The preparation method comprises the steps of treating work-pieces in boiling rare-earth salt solutions, carrying out self-assembly and modification treatment on the work-pieces, carrying out chemical bath deposition treatment on the work-pieces, finally carrying out curing treatment on the work-pieces and obtaining the metal surface films resistant to abrasion, scratch and corrosion. The metal surface films prepared through the method are respectively of a fine micro-nano structure and is excellent in abrasion resistance, scratch resistance and corrosion resistance. The preparation method is suitable for treating the surfaces of various kinds of metal such as aluminum, magnesium, copper, titanium, iron, nickel and zinc and has the advantages that the process is simple, the operation is convenient, special instruments and equipment are not needed, and large-scale industrial treatment is easy.

Description

technical field [0001] The invention belongs to the technical field of metal material surface treatment, and in particular relates to a method for preparing a wear-resistant, scratch-resistant and corrosion-resistant metal surface film layer. Background technique [0002] Aluminum, magnesium, copper, titanium, iron, nickel, zinc and other metals and their alloys are widely used in various fields of the national economy. Due to the relatively active chemical properties of these materials, they are easily corroded in contact with the surrounding environment, and are often accompanied by damage caused by wear, scratches and other reasons during use. Although the current metal surface treatment methods can slow down the occurrence of corrosion to a certain extent, they have little effect on the great harm caused by local damage caused by abrasion, scratches, etc., and the damage is then rapidly corroded. It can be seen that the film layer prepared by the existing metal surface ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/12B05D7/14
CPCB05D7/14B05D2401/21B05D2502/00B05D2518/00C23C18/1204
Inventor 雷惊雷李凌杰许雯婷刘洋江城潘复生
Owner 宁波摩尔克斯灯杆技术有限公司