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Titanium alloy anodic oxidation coloring technique

An anodic oxidation and titanium alloy technology, applied in the field of material surface treatment, can solve problems such as poor bonding between the film layer and the substrate, large environmental pollution, and large equipment investment, and achieve low cost, easy-to-obtain raw materials, and good repeatability.

Inactive Publication Date: 2018-07-20
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the electroplating method not only pollutes the environment more, but also has poor bonding force between the film layer and the substrate. The micro-arc oxidation method and the ion beam enhanced deposition method require large investment in equipment and energy consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The TC4 titanium alloy is pretreated at room temperature, and the pretreatment process is as follows: using 100 # 、240 # 、600 # , 800 # and 1200 # Metallographic sandpaper is used to grind the titanium alloy step by step to make the surface smooth and flat without obvious scratches, and then rinse with a large amount of deionized water and absolute ethanol, and dry naturally.

[0019] The TC4 titanium alloy was anodized in 0.5mol / L sulfuric acid electrolyte, and the TC4 titanium alloy was plated for 20 minutes under the condition of anodizing voltage of 10V by electrochemical method, and a light yellow anodic oxidation film was obtained.

[0020] The anodized titanium alloy is ultrasonically cleaned with deionized water and absolute ethanol to remove the floating color on the surface of the titanium alloy, and dried in a natural environment to obtain a bright anodized film.

Embodiment 2

[0022] The difference from Example 1 is:

[0023] The TC4 titanium alloy was anodized in 0.5mol / L sulfuric acid electrolyte, and the TC4 titanium alloy was plated for 20 minutes at an anodic oxidation voltage of 15V by electrochemical method to obtain a yellow anodic oxidation film.

Embodiment 3

[0025] The difference from Example 1 is:

[0026] The TC4 titanium alloy was anodized in 0.5mol / L sulfuric acid electrolyte, and the TC4 titanium alloy was plated for 20 minutes at an anodic oxidation voltage of 20V by electrochemical method to obtain a purple anodic oxidation film.

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PUM

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Abstract

The invention belongs to the technical field of material surface treatment and particularly relates to a titanium alloy anodic oxidation coloring technique. According to the following technical scheme, the titanium alloy anodic oxidation coloring technique adopts an electrochemical two-electrode system, in an inorganic acid electrolyte, a direct current voltage-stabilizing power source is used forregulating and controlling the anodic oxidation voltage, and a titanium alloy is subjected to anodic oxidation coloring treatment under the indoor temperature condition. According to the titanium alloy anodic oxidation coloring technique, the titanium alloy surface with the abundant color and with a uniform colored film can be obtained, and the titanium alloy anodic oxidation coloring technique can be used in industry on a large scale.

Description

technical field [0001] The invention belongs to the technical field of material surface treatment, and in particular relates to a titanium alloy anodic oxidation coloring process. Background technique [0002] With its excellent properties and abundant reserves in the earth's crust, titanium alloys quickly stand out from other similar metals and shine in aerospace, shipbuilding, petrochemical and other fields. The progress and development of technology is known as the rising "third metal". [0003] With the development of society and the enrichment of people's material life, the requirements for the appearance of titanium alloys are also getting higher and higher. The bright colors on the surface of the material can beautify the appearance of the article and improve the decorative performance through surface treatment. Anodic oxidation can make titanium alloy color anodized film have considerable economic benefits, and at the same time help to meet the market's demand for ...

Claims

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Application Information

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IPC IPC(8): C25D11/26
CPCC25D11/26
Inventor 万晔申轩宇李艳波朱旭
Owner SHENYANG JIANZHU UNIVERSITY
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