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: 2007-02-07
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: Anodize the TB6 titanium alloy substrate

[0019] 1. Prepare alkaline etching solution

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

[0021] 2. Prepare anodizing treatment solution

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

[0023] 3. Anodizing treatment

[0024] The TB6 titanium alloy matrix is ​​sequentially subjected to the pre-anodization acceptance step 1-→organic solvent or water-based cleaning agent degreasing step 2-→mounting step 3-→degreasing step 4-→flowing hot water washing step 5-→flowing cold water After the conventional treatment of washing step 6, put it in a 50±1°C etching solution for 30 minutes to complete the alkaline corrosion step 51; then wash for 2 minutes at a flowing water temperature of 40±1°C to complete the flowing hot water washing step 52; Was...

Embodiment 2

[0038] Example 2: Anodize the TC18 titanium alloy substrate

[0039] 1. Prepare alkaline etching solution

[0040] 20g / L sodium silicate, 25g / L sodium carbonate, 40g / L sodium hydroxide, 3g / L sodium lauryl sulfate, 8g / L Tween 80 and the remainder of deionized water, stir well and set aside.

[0041] 2. Prepare anodizing treatment solution

[0042] 3g / L ammonium tartrate and the remainder of deionized water, stir evenly and set aside.

[0043] 3. Anodizing treatment

[0044] The TC18 titanium alloy matrix is ​​sequentially subjected to the pre-anodization acceptance step 1-→organic solvent or water-based cleaning agent degreasing step 2-→mounting step 3-→degreasing step 4-→flowing hot water washing step 5-→flowing cold water After the conventional treatment of washing step 6, put it in a 55±1°C etching solution for 40 minutes to complete the alkaline corrosion step 51; then wash for 3 minutes at a flowing water temperature of 45±1°C to complete the flowing hot water washing step 52;...

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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, and more particularly, to an anodic oxidation treatment of a titanium alloy, and the anodic oxidation treatment solution adopted is based on the ammonium tartrate system. Background technique [0002] The anodizing treatment process is carried out in the current industry standard using the steps specified in HB / Z 347-2002. The anodizing treatment process in this standard includes (see figure 1 (Shown) Pre-anodization acceptance step 1-→organic solvent or water-based cleaning agent degreasing step 2-→mounting step 3-→degreasing step 4-→flowing hot water washing step 5-→flowing cold water washing step 6-→ (Acid) Corrosion Step 7-→ Flowing Cold Water Washing Step 8-→ Anodizing Step 9-→ Flowing Cold Water Washing Step 10-→ Flowing Hot Deionized Water Washing Step 11-→ Disassembly Step 12-→ Drying Step 13-→ Inspection Step 14 . [0003] At present, the anodic oxidation treatment of titanium alloy i...

Claims

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Application Information

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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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