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Aging method of titanium alloy anodic oxidation activation and film peeling two-in-one solution

Anodizing, titanium alloy technology, applied in electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., can solve the problems of poor stability of alkaline peroxide system, achieve good bonding force, improve wear resistance, reduce effect of dosage

Inactive Publication Date: 2014-01-22
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two-in-one solution for activation and film removal prepared by the aging method overcomes the defects of the existing activation or film removal system with single function, the acidic system corrodes the substrate and is harmful to the human body, and the alkaline peroxide system has poor stability. It can be used for titanium The activation treatment of alloy anodic oxidation can also be used for the film removal of unqualified titanium alloy anodized parts. It has strong adaptability to different titanium alloys, is friendly to the environment, has stable bath performance, and is easy to maintain and use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Three reworked samples of TC4 titanium alloy anodized with a size of 100 mm X 100 mm X 10 mm were used to remove the film in the above-mentioned newly prepared 2L base liquid (process conditions: temperature 85 ° C, time 30 min), and then Add tap water to the solution to dilute it to the 2L scale, and boil it for 15 minutes to obtain a two-in-one solution for titanium alloy anodic oxidation, activation and film removal. Sampling and analysis showed that the content of impurity ions such as Ti, Al, and V were 261.1 mg / L, 55.1 mg / L, and 59.7 mg / L, respectively.

[0030] TC4, TB6, and TA15 titanium alloy blank samples were activated with a two-in-one solution for activation and film removal, and then anodized respectively. Each piece of the sample is anodized again after the two-in-one solution of activation and film removal is used to remove the film, and the bonding force of the oxide film is between 0 and 1; while the blank samples or reworked samples of the same three ...

Embodiment 2

[0032] One piece of anodized sample of TC4 and TB6 titanium alloys of 100 mm X 100 mm X 10 mm was used for film removal treatment in the above-mentioned newly prepared 2L base liquid (process conditions: temperature 85 °C, time 2 25min), and then add tap water to dilute the solution to the 2L mark, and boil for 20min to obtain a two-in-one solution for activation and film removal. Sampling and analysis showed that the content of impurity ions such as Ti, Al, and V were 321.1 mg / L, 70.3 mg / L, and 89.1 mg / L, respectively.

[0033] TC4, TB6, and TA15 titanium alloy blank samples were activated with a two-in-one solution for activation and film removal, and then anodized respectively. Each piece of the sample is anodized again after the two-in-one solution of activation and film removal is used to remove the film, and the bonding force of the oxide film is between 0 and 1; while the blank samples or reworked samples of the same three titanium alloys are newly prepared Anodic oxid...

Embodiment 3

[0035] Two 100 mm X 100 mm X 2.5 mm TC4 titanium alloy anodized rework samples and two 100 mm X 100 mm X 10 mm TB6 titanium alloy anodized samples were used in the newly prepared 2L The film removal treatment is carried out in the base solution (process conditions: temperature is 85°C, time is 25 minutes), and then the solution is diluted to 2L with tap water, and boiled for 20 minutes to obtain a two-in-one solution for activation and film removal. Sampling and analysis showed that the content of impurity ions such as Ti, Al, and V were 424.1 mg / L, 124.7 mg / L, and 146.2 mg / L, respectively.

[0036] TC4, TB6, and TA15 titanium alloy blank samples were activated with a two-in-one solution for activation and film removal, and then anodized respectively. Each piece of the sample is anodized again after the two-in-one solution of activation and film removal is used to remove the film, and the bonding force of the oxide film is between 0 and 1; while the blank samples or reworked s...

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PUM

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Abstract

The invention discloses an aging method of a titanium alloy anodic oxidation activation and film peeling two-in-one solution. The aging method comprises the following steps: performing film peeling treatment on samples or rework samples subjected to titanium alloy anoxic oxidation in newly prepared basic solution consisting of sodium hydroxide, sodium gluconate, triethanolamine, dimethyl ketoxime and tap water under a heating condition; introducing oxide film products which are peeled or dissolved into impurity ions such as Ti, Al and V with catalytic effects to obtain the activation and film peeling two-in-one solution. The titanium alloy anodic oxidation activation and film peeling two-in-one solution obtained by the method is environment-friendly and stable in performance, can be sued for preventing hydrogen absorption of a titanium alloy, has high applicability to the titanium alloy, can be used for activation or film peeling treatment, and guarantees the quality and reproducibility of the oxide film obtained by titanium alloy anodic oxidation or reoxidation.

Description

technical field [0001] The invention relates to the technical field of titanium alloy surface treatment, in particular to a method for maturing a two-in-one solution for titanium alloy anodic oxidation, activation and film removal. Background technique [0002] Due to the superior properties of titanium and titanium alloys, they have been widely used in aviation, medical, chemical and other fields and have developed rapidly. The chemical properties of titanium are active, and the equilibrium potential is relatively negative. Theoretically, the thermodynamic corrosion tendency is large, but in fact titanium is very stable in many media, because titanium is very easy to react with oxygen and passivate, and the formed oxide film makes it resistant to corrosion. The corrosion resistance is improved, which prevents further oxidation of the titanium alloy. In addition, the resistivity of this oxide film is high, so that the titanium alloy has excellent electrochemical corrosion r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/20C25D11/26
Inventor 周雅张荣洲王春霞吴光辉
Owner NANCHANG HANGKONG UNIVERSITY