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Method for preparing ceramic oxide film of different colors on the surface of titanium alloy

A technology of ceramic oxidation and titanium alloys, applied in the direction of surface reaction electrolytic coating, coating, electrolytic coating, etc., can solve the problem of single color of micro-arc oxidation ceramic film, and achieve the realization of diversified colors, good high temperature resistance, and easy operation. strong effect

Active Publication Date: 2019-03-01
GUANGXI UNIV +2
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  • Summary
  • 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 oxide film of different colors on the surface of titanium alloy
  • Method for preparing ceramic oxide film of different colors on the surface of titanium alloy
  • Method for preparing ceramic oxide film of different colors on the surface of titanium alloy

Examples

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Effect test

Embodiment 1

[0022] A preparation method for preparing an army green ceramic oxide film on the surface of a titanium alloy comprises the following steps:

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

[0024] 2. Electrolyte preparation: main salt 12-15g / L sodium phosphate, complexation stabilizer 8-10ml / L ammonia water, coloring agent 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 DC pulse micro-arc oxidation equipment is used to perform micro-arc oxidation treatment on the titanium alloy sample, and the electrical parameters are set: voltage 330~ 350V, current 0.9-1.3A, frequency 270-...

Embodiment 2

[0027] A preparation method for preparing an army green ceramic oxide film on the surface of a titanium alloy comprises the following steps:

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

[0029] 2. Electrolyte preparation: main salt 17-19g / L sodium phosphate, complexation stabilizer 9-12ml / L ammonia water, coloring agent 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 DC pulse micro-arc oxidation equipment is used to perform micro-arc oxidation treatment on the titanium alloy sample, and the electrical parameters are set: voltage 300~ 320V, current 1.0-1.5A, frequency 290-...

Embodiment 3

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

[0033] 1. Pretreatment: first wash with hydrofluoric acid with a concentration of 5-30% to remove impurities on the surface of the titanium alloy sample, wash with water for 10 minutes, then soak in absolute ethanol for 40 seconds to remove the oil on the surface of the sample, and dry it;

[0034] 2. Electrolyte preparation: the main salt is 8-10g / L sodium phosphate, the film-forming agent is 2-3g / L sodium fluoride, the film compaction accelerator is 2-3g / L sodium carbonate, and the complexation stabilizer is 2.5 ~4ml / L ammonia water, the coloring agent 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 DC pulse micro-arc oxidation equipment is used to perform micro-arc oxidation tre...

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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 field of coloring in the metal surface treatment technology, in particular to a method for preparing ceramic oxide films of different colors on the surface of a titanium alloy. Background technique [0002] Micro-arc oxidation technology is a new surface treatment technology developed on the basis of anodic oxidation 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 matrix metal oxide is grown. The prepared ceramic film layer has the advantages of both anodized film and ceramic sprayed layer. It is the second-generation engineering material (light metal) and the third-generation engineering material. The perfect combination of properties of modern engineering materials ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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