Titanium alloy anode oxidation technique based on ammonium tartrate system

A technology of anodic oxidation and ammonium tartrate, applied in electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., can solve the problems of alloy hydrogen embrittlement, hazards, environmental pollution, etc., achieve good anti-contact corrosion performance, reduce pollution, composition simple effect

Inactive Publication Date: 2010-08-11
BEIHANG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This acidic corrosive solution will cause a certain degree of harm to experimental equipment and workers during the preparation process; it can only be diluted and discharged during the discharge process, without other treatment methods, and has a certain degree of pollution to the environment
Moreover, in the corrosion step 7, H in the corrosion solution easily enters the titanium alloy matrix during the chemical reaction, resulting in hydrogen embrittlement of the alloy.

Method used

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  • Titanium alloy anode oxidation technique based on ammonium tartrate system
  • Titanium alloy anode oxidation technique based on ammonium tartrate system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1: Anodizing treatment of TB6 titanium alloy substrate

[0019] 1. Prepare alkaline corrosion solution

[0020] 25g / L sodium silicate, 25g / L sodium carbonate, 45g / L sodium hydroxide, 3g / L sodium lauryl sulfate, 5g / L triton and the rest of deionized water, stir well and set aside.

[0021] 2. Preparation of anodic oxidation treatment solution

[0022] 3g / L ammonium tartrate and the balance of deionized water, stir evenly, set aside.

[0023] 3. Anodizing treatment

[0024] The TB6 titanium alloy substrate is sequentially subjected to anodic oxidation acceptance step 1-→organic solvent or water-based cleaning agent degreasing step 2-→mounting step 3-→degreasing step 4-→first flowing hot water washing step 5-→ After the conventional treatment of the first flowing cold water washing step 6, put it into the corrosion solution at 50±1°C for 30 minutes to complete the alkali corrosion step 51; then wash at the flowing water temperature of 40±1°C for 2 minutes to co...

Embodiment 2

[0039] Example 2: Anodizing treatment of TC18 titanium alloy substrate

[0040] 1. Prepare alkaline corrosion solution

[0041] 20g / L sodium silicate, 25g / L sodium carbonate, 40g / L sodium hydroxide, 3g / L sodium lauryl sulfate, 8g / L Tween 80 and the rest of deionized water, stir well and set aside.

[0042] 2. Preparation of anodic oxidation treatment solution

[0043] 3g / L ammonium tartrate and the balance of deionized water, stir evenly, set aside.

[0044] 3. Anodizing treatment

[0045] The TC18 titanium alloy substrate is sequentially subjected to anodic oxidation pre-acceptance step 1-→organic solvent or water-based cleaning agent degreasing step 2-→installation step 3-→degreasing step 4-→first flowing hot water washing step 5-→ After the conventional treatment of the first flowing cold water washing step 6, put it into the corrosion solution at 55±1°C for 40 minutes to complete the alkali corrosion step 51; then wash at the flowing water temperature of 45±1°C for 3 ...

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Abstract

the invention discloses a Ti-alloy anode oxidizing technology based on ammonium tartrate system, which is characterized by the following: adopting alkaline eroding liquid and ammonium tartrate system to dispose Ti-alloy base; filming; avoiding using poisonous material; reducing manufacturing cost.

Description

technical field [0001] The invention relates to an anodic oxidation treatment process, more particularly, refers to an anodic oxidation treatment for titanium alloys, wherein the anodic oxidation treatment liquid used is based on the ammonium tartrate system. Background technique [0002] The anodic oxidation treatment process is carried out according to the steps stipulated in HB / Z 347-2002 in the current industry standard. The anodic oxidation treatment process in this standard includes (see Figure 1) acceptance step 1 before anodic oxidation-→organic Solvent or water-based cleaning agent degreasing step 2-→mounting step 3-→degreasing step 4-→first flowing hot water washing step 5-→first flowing cold water washing step 6-→(acid) corrosion step 7-→ Second flowing cold water washing step 8-→anodic oxidation step 9-→third flowing cold water washing step 10-→flowing hot deionized water washing step 11-→disassembly step 12-→drying step 13-→testing step 14. [0003] At present,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/26
Inventor 刘建华易俊兰李松梅龙国荣甘武奎
Owner BEIHANG UNIV
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