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Efficient environment-friendly conditioning fluid for titanium and titanium alloy anodized repair members

An anodic oxidation and titanium alloy technology, applied in the direction of electrolytic coating, surface reaction electrolytic coating, coating, etc., can solve the problems of difficulty in continuous use, poor stability, etc., and achieve good stability, large carrying capacity, and low consumption. Effect

Active Publication Date: 2012-07-18
JIANGXI HONGDU AVIATION IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method is simple and easy to implement, due to the conditions of heating, strong alkali and impurity ions (iron, manganese, etc.) 2 o 2 Extremely poor stability, difficult to use continuously

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example

[0020] (1) 1L treatment liquid formula

[0021] Potassium hydroxide: 100g,

[0022] Sodium polyepoxysuccinate: 40g, Sodium oxalate: 40g, Sodium gluconate: 60g

[0023] Sodium polyaspartate (40wt%): 40ml

[0024] Sodium Erythorbate: 1g

[0025] water: balance

[0026] (2) Preparation of 1L treatment solution: first add some water and other substances in proportion and mix well, then add water to 1L.

[0027] (3) Processing and results of non-film white paper

[0028] Stir the above treatment solution, and heat it to 70°C, put in titanium and titanium alloy film-free white pieces (60×60×8mm TC4 titanium alloy samples), treat for 8 minutes, take it out and rinse with water, the surface color becomes uniform Blue-gray, anodized for 30 minutes, can form a uniform yellow oxide film, and the thickness of the film layer measured by a thickness gauge is 25.0±3μm. The film-free white parts not treated with this treatment solution were directly anodized for 30 minut...

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Abstract

The invention discloses an efficient environment-friendly conditioning fluid for titanium and titanium alloy anodized repair members, which can remove oxidation films and can activate the surface of a workpiece so as to lead anodes of repair members or film-free workpieces to be oxidized and coated with films. The conditioning fluid contains 20-30wt% of strong base, 2-20wt% of antisludging agents, 2-20wt% of dispersing agents and 0.05-1wt% of activating agents, and the balance being water. Temperature of workpeices in the conditioning fluid ranges from 50 DEG C to 80 DEG C, and the processingtime is 1-30min. Stability of bath solution is good, bearing capacity is large, maintenance is easy, and no environment pollution can be caused. Mechanical property of the processed titanium and titanium alloy cannot be reduced, and quality of oxidation films can be ensured.

Description

technical field [0001] The invention relates to an efficient and environment-friendly treatment solution, which can remove the oxide film of titanium and titanium alloy anodic oxidation repair parts, activate the surface of the workpiece to re-anodize the film, and can also activate titanium and titanium alloy non-film white parts The surface is anodized on the film. Background technique [0002] Titanium and titanium alloys have small specific gravity, high specific strength, high temperature resistance, corrosion resistance and other excellent properties, and have been more and more widely used in military, aviation, aerospace, medical, chemical and other fields. The anodized titanium and titanium alloy parts, because of the oxide film formed on the surface, endow them with better corrosion resistance and scratch resistance. [0003] However, titanium and titanium alloys have high chemical activity, and it is easy to form a very thin and dense oxidation protective film in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23G1/20C25D11/26
Inventor 超敏肖胜辉吴筱兰周雅吴光辉王春霞
Owner JIANGXI HONGDU AVIATION IND GRP
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