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Method for preparing ceramic oxidation films in different colors on surface of titanium alloy

A technology of ceramic oxidation and titanium alloy, applied in surface reaction electrolytic coating, electrolytic coating, coating and other directions, can solve the problem of single color of micro-arc oxidation ceramic film, achieve color diversification, improve service life and safety performance , Easy to clean effect

Active Publication Date: 2017-05-17
GUANGXI UNIV +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing ceramic oxide films of different colors on the surface of titanium alloys, solve the shortcoming of single color of micro-arc oxidation ceramic films on the surface of titanium alloys, realize color diversification, and can be applied to the field of titanium alloy kitchen utensils

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  • Method for preparing ceramic oxidation films in different colors on surface of titanium alloy
  • Method for preparing ceramic oxidation films in different colors on surface of titanium alloy
  • Method for preparing ceramic oxidation films in different colors on surface of titanium alloy

Examples

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Embodiment 1

[0022] The preparation method for preparing military green ceramic oxide film on the surface of titanium alloy comprises the following steps:

[0023] 1. Pretreatment: First, use hydrofluoric acid with a concentration of 5 to 30% to remove impurities on the surface of the titanium alloy sample, wash with water for 10 minutes, then soak in absolute ethanol for 30 seconds to remove the oil stain on the surface of the sample, and blow dry;

[0024] 2. Electrolyte preparation: the main salt is 12-15g / L sodium phosphate, the complexing stabilizer is 8-10ml / L ammonia water, and the coloring agent is 0.9-1.0g / L copper sulfate pentahydrate;

[0025] 3. The titanium alloy sample is used as the anode, the stainless steel tank is used as the cathode, and the anode is immersed in the prepared electrolyte; the micro-arc oxidation treatment of the titanium alloy sample is carried out by the AC pulse micro-arc oxidation equipment, and the electrical parameters are set: voltage 330~ 350V, cur...

Embodiment 2

[0027] The preparation method for preparing military green ceramic oxide film on the surface of titanium alloy comprises the following steps:

[0028] 1. Pretreatment: First, use hydrofluoric acid with a concentration of 5 to 30% to remove impurities on the surface of the titanium alloy sample, wash with water for 10 minutes, then soak in absolute ethanol for 30 seconds to remove the oil stain on the surface of the sample, and blow dry;

[0029] 2. Electrolyte preparation: the main salt is 17-19g / L sodium phosphate, the complexing stabilizer is 9-12ml / L ammonia water, and the coloring agent is 0.9-1.0g / L copper sulfate pentahydrate;

[0030] 3. The titanium alloy sample is used as the anode, the stainless steel tank is used as the cathode, and the anode is immersed in the prepared electrolyte; the micro-arc oxidation treatment of the titanium alloy sample is carried out by the AC pulse micro-arc oxidation equipment, and the electrical parameters are set: voltage 300~ 320V, cur...

Embodiment 3

[0032] The preparation method for preparing green ceramic oxide film on the surface of titanium alloy comprises the following steps:

[0033] 1. Pretreatment: First, use hydrofluoric acid with a concentration of 5 to 30% to remove impurities on the surface of the titanium alloy sample. After washing with water for 10 minutes, soak in absolute ethanol for 40 seconds to remove the oil stain on the surface of the sample, and blow dry;

[0034] 2. Electrolyte preparation: main salt is 8-10g / L sodium phosphate, film-forming agent is 2-3g / L sodium fluoride, film densification accelerator is 2-3g / L sodium carbonate, complex stabilizer is 2.5g / L ~4ml / L ammonia water, the colorant is 0.1~0.25g / L copper sulfate pentahydrate;

[0035] 3. The titanium alloy sample is used as the anode, the stainless steel tank is used as the cathode, and the anode is immersed in the prepared electrolyte; the micro-arc oxidation treatment of the titanium alloy sample is carried out by the AC pulse micro-ar...

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Abstract

The invention discloses a method for preparing ceramic oxidation films in different colors on the surface of titanium alloy, and belongs to the field of coloring of metal surface processing technologies. The method comprises the following steps that after the surface of the titanium alloy is pretreated, the titanium alloy is placed into electrolytes with different formulas, alternating current pulse micro-arc oxidation equipment is used for conducting micro-arc oxidation treatment on the titanium alloy, and the green, aqua, army green and medium grey ceramic oxidation films are prepared on the surface of the titanium alloy. The ceramic oxidation films prepared through the method are uniform in color and lustre and not prone to color fading, and have good corrosion resistance, abrasion resistance and high-temperature resistance and the characteristics of good dirt resistance and easy cleaning of dirt. The method is simple and stable in process, high in operability, easy to control and capable of achieving volume production and meeting the market demands for multi-color of the micro-arc oxidation films on the surface of the titanium alloy.

Description

technical field [0001] The invention belongs to the coloring field in metal surface treatment technology, and particularly relates to a method for preparing ceramic oxide films of different colors on the surface of titanium alloys. Background technique [0002] Micro-arc oxidation technology is a new surface treatment technology developed in anodizing technology, that is, through the combination of electrolyte and corresponding electrical parameters, the instantaneous high temperature generated by micro-arc discharge on the surface of aluminum, magnesium, titanium and their alloys Under the action of high pressure, a ceramic film layer mainly composed of base metal oxides is grown. The prepared ceramic film layer has the advantages of both anodic oxide film and ceramic spray coating. It is the second generation engineering material (light metal) and the third generation of engineering materials. The performance of the generation of engineering materials (ceramics) is perfect...

Claims

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Application Information

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IPC IPC(8): C25D11/26
CPCC25D11/026C25D11/26
Inventor 李伟洲苏文涛卢玉梅凌奎陈泉志蒋馥蔓
Owner GUANGXI UNIV
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