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Titanium-magnesium alloy anodic oxidation solution

An anodic oxidation, titanium-magnesium alloy technology, applied in coatings, surface reaction electrolytic coatings, electrolytic coatings, etc., can solve the problem of weak bonding between the anodized film and the surface oxide film of the substrate, poor compactness of the anodized film, and poor anodized film High surface energy and other issues, to achieve good practical application prospects, good anti-oxidation performance, good decorative effect

Active Publication Date: 2017-05-24
FOSHAN KEITH TITANIUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (3) The surface energy of the anodized film is high, and the surface of the film is easy to absorb dirty substances and be polluted, and it is easy to cause fingerprint pollution to change the color; in addition, it is difficult to recover after being polluted, which affects its appearance and decorative effect;
[0009] (4) The compactness of the anodized film is poor, often due to the oxide film on the surface of the substrate, the combination of the anodized film and the oxide film on the surface of the substrate is not firm, and it is easy to fall off

Method used

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  • Titanium-magnesium alloy anodic oxidation solution

Examples

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Embodiment 1

[0035] A kind of titanium-magnesium alloy anodic oxidation coloring method, comprises the steps:

[0036] (1) Pretreatment: sequentially carry out chemical degreasing, primary water washing, pickling, and secondary water washing process steps on the titanium-magnesium alloy sample to obtain titanium-magnesium alloy sample A;

[0037] (2) Anodizing: calculated in parts by weight, 20 parts of potassium dichromate, 10 parts of sodium chromate, 10 parts of chromium sulfate, 10 parts of sulfuric acid, 2 parts of blackening agent, 25 parts of phosphoric acid, 20 parts of sodium phosphate, 1 part of acetic acid, 10 parts of ethylene glycol, 15 parts of sodium gluconate and 700 parts of distilled water are mixed and prepared into a titanium-magnesium alloy anodizing solution, with the titanium-magnesium alloy sample A as a working electrode, and a graphite electrode as an auxiliary electrode. The working electrode and the auxiliary electrode are completely immersed in the titanium-mag...

Embodiment 2

[0040] (1) Pretreatment: sequentially carry out chemical degreasing, primary water washing, pickling, and secondary water washing process steps on the titanium-magnesium alloy sample to obtain titanium-magnesium alloy sample A;

[0041] (2) Anodizing: calculated in parts by weight, 25 parts of potassium dichromate, 15 parts of sodium chromate, 15 parts of chromium sulfate, 30 parts of sulfuric acid, 2 parts of blackening agent, 30 parts of phosphoric acid, 25 parts of sodium phosphate, 5 parts of acetic acid, 10 parts of ethylene glycol, 25 parts of sodium gluconate and 1000 parts of distilled water are mixed and prepared into a titanium-magnesium alloy anodizing solution, with the titanium-magnesium alloy sample A as a working electrode, and a graphite electrode as an auxiliary electrode. The working electrode and the auxiliary electrode are completely immersed in the titanium-magnesium alloy anodizing solution for anodic oxidation, the current density is 5A / dm, the voltage is...

Embodiment 3

[0044] (1) Pretreatment: sequentially carry out chemical degreasing, primary water washing, pickling, and secondary water washing process steps on the titanium-magnesium alloy sample to obtain titanium-magnesium alloy sample A;

[0045] (2) Anodizing: calculated in parts by weight, 30 parts of potassium dichromate, 20 parts of sodium chromate, 13 parts of chromium sulfate, 20 parts of sulfuric acid, 3 parts of blackening agent, 35 parts of phosphoric acid, 30 parts of sodium phosphate, 8 parts of acetic acid, 15 parts of ethylene glycol, 20 parts of sodium gluconate and 800 parts of distilled water are mixed and prepared into a titanium-magnesium alloy anodizing solution, with the titanium-magnesium alloy sample A as a working electrode, and a graphite electrode as an auxiliary electrode. The working electrode and the auxiliary electrode are completely immersed in the titanium-magnesium alloy anodizing solution for anodic oxidation, the current density is 6A / dm, the voltage is ...

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Abstract

The invention discloses a titanium-magnesium alloy anodic oxidation solution which comprises, by weight, 20-60 parts of potassium dichromate, 10-30 parts of chromate, 10-20 parts of sulfate, 10-50 parts of sulfuric acid, 2-4 parts of blackening agent, 25-40 parts of phosphoric acid, 20-40 parts of phosphate, 1-10 parts of acetic acid, 10-20 parts of ethylene glycol, 15-30 parts of sodium gluconate and 700-1000 parts of distilled water. By means of the anodic oxidation solution, the binding force of an oxidation film and a base body is good, and the oxidation film is good in compactness, not prone to disengagement and good in oxidation resistance, pollution resistance and the like. The anodic oxidation coloring method is easy to implement, the number of process steps is small, the solution is easy to maintain, batch production can be achieved, oxidation films with different thicknesses and good compactness can be obtained by controlling different voltage values, the pH value of the oxidation solution and power-on time, and the production market requirements for metal surface treatment anodic oxidation are met.

Description

technical field [0001] The invention relates to the technical field of anodic oxidation for metal surface treatment, in particular to a titanium-magnesium alloy anodic oxidation solution. Background technique [0002] In recent years, titanium and titanium alloys have attracted more and more attention because of their unique properties, so they are widely used in various fields such as national defense cutting-edge technology, civil industry, and people's livelihood products. For example: in aerospace, titanium and titanium alloys are used in the production of new-generation aircraft due to their small specific gravity, light weight, and high specific strength; in medicine, titanium and titanium alloys have good corrosion resistance and good biocompatibility. With low human repellency, it is widely used in medical fields such as tooth and bone implants, and intravascular stents, and has become an eye-catching biometal material; in construction, due to the unique characterist...

Claims

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Application Information

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IPC IPC(8): C25D11/26C23G1/20C23G1/10
CPCC23G1/106C23G1/205C25D11/26
Inventor 刘敏业
Owner FOSHAN KEITH TITANIUM TECH CO LTD