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Electrolyte for preparing golden titanium alloy anodic oxide film

An anodic oxide film and electrolyte technology, applied in the field of electrolyte, can solve the problems of complex process, high control cost, long production time, etc., and achieve the effect of simple preparation operation, excellent corrosion resistance and good corrosion resistance

Inactive Publication Date: 2017-09-26
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through different anodizing treatments, titanium oxide film layers can be formed on the surface of titanium alloys to form different colors, but most of the current anodizing processes have complicated processes, unstable quality, and difficult color control.
For example, the electrolyte of phosphoric acid system can obtain titanium alloy surface oxide films of different colors, but the process is more complicated, the production time is long, the quality of single color is unstable, and the control cost is high

Method used

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  • Electrolyte for preparing golden titanium alloy anodic oxide film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The electrolyte solution of the golden titanium alloy anodized film with a capacity of 1L was prepared, and the content of each component was: phosphoric acid 0.5 mol / L; hydrochloric acid 1 mol / L; sodium gluconate 10 g / L; sodium phosphate 15 g / L.

[0013] First add sulfuric acid and hydrochloric acid to 1L of deionized water, after stirring evenly, add sodium gluconate and heat at 60°C, keep warm for 30 minutes, then add sodium phosphate, stir well until a uniform and stable phase is formed, then cool to room temperature to obtain an electrolyte .

[0014] Then, place a 1×1 cm 2 The pure titanium sheet is placed on the anode, graphite is used as the cathode, and a DC voltage of 10V is applied for 5 minutes. After treatment, a golden yellow oxide film is obtained on the surface of the titanium alloy.

Embodiment 2

[0016] The electrolyte solution of the golden titanium alloy anodized film with a capacity of 1L was prepared, and the content of each component was: phosphoric acid 2mol / L; hydrochloric acid 0.5 mol / L; sodium gluconate 20g / L; sodium phosphate 5g / L.

[0017] First add sulfuric acid and hydrochloric acid to 1L of deionized water, stir well, then add sodium gluconate and heat at 80°C, keep warm for 20 minutes, then add sodium phosphate, stir well until a uniform stable phase is formed, then cool to room temperature to obtain an electrolyte .

[0018] Then, place a 1×1 cm 2 The TC4 is placed on the anode, graphite is used as the cathode, and a DC voltage of 5V is applied for 3 minutes. After the treatment, a golden yellow oxide film is obtained on the surface of the titanium alloy.

Embodiment 3

[0020] The electrolyte solution of the golden titanium alloy anodized film with a capacity of 1L was prepared, and the content of each component was: phosphoric acid 1mol / L; hydrochloric acid 0.8 mol / L; sodium gluconate 15g / L; sodium phosphate 10g / L.

[0021] First add sulfuric acid and hydrochloric acid to 1L of deionized water, after stirring evenly, add sodium gluconate and heat at 70°C, keep warm for 25 minutes, then add sodium phosphate, stir well until a uniform and stable phase is formed, then cool to room temperature to obtain an electrolyte .

[0022] Then, place a 1×1 cm 2 The TC4 is placed on the anode, graphite is used as the cathode, and a DC voltage of 8V is applied for 4 minutes. After treatment, a golden yellow oxide film is obtained on the surface of the titanium alloy.

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Abstract

The invention relates to an electrolyte for preparing a golden titanium alloy anodic oxide film, and belongs to the technical field of titanium and titanium alloy surface modification techniques. The electrolyte is prepared from 0.5-2 mol / L of phosphoric acid, 0.5-1 mol / L of hydrochloric acid, 10-20 g / L of sodium gluconate, 5-15 g / L of sodium phosphate and water. Firstly, sulfuric acid and hydrochloric acid are added into a certain amount of deionized water and stirred evenly, sodium gluconate is added and heated, then sodium phosphate is added, a mixture is fully stirred to form an even stable phase and cooled to the room temperature, and thus the electrolyte for preparing the golden titanium alloy anodic oxide film is obtained. The anodic oxide film prepared through the electrolyte is golden, uniform in color and luster and good in corrosion resistance.

Description

technical field [0001] The invention relates to an electrolyte solution for preparing anodic oxidation film of golden titanium alloy, which belongs to the technical field of surface modification technology of titanium and titanium alloy. Background technique [0002] Due to its good performance, titanium alloy is widely used in aerospace, automobile, military industry and chemical industry and other fields. At the same time, due to the gorgeousness and stability of the oxide film on its surface, it is also used in the decoration field of daily life. Among them, the golden oxide film is favored in high-end decorations such as titanium alloy mobile phone cases, titanium bracelets, titanium necklaces, titanium rings, and titanium earrings. [0003] Anodizing is often used in the preparation process of oxide film on the surface of titanium alloy. Among them, anodic oxidation electrolyte is one of its key technologies. Titanium oxide film layers can be formed on the surface of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D11/26
CPCC25D11/26
Inventor 詹肇麟刘璐于晓华付天林刘建雄李莉
Owner KUNMING UNIV OF SCI & TECH