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Method for electrochemical coloring of metallic titanium and titanium-based alloys

A titanium-based alloy, electrochemical technology, used in electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., can solve problems such as poor friction resistance, poor aesthetics, and single color, and achieve good corrosion resistance and consistency. , the effect of uniform color

Inactive Publication Date: 2017-01-25
ANYANG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the soft texture of titanium, poor friction resistance; single color, poor aesthetics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Golden yellow titanium sample preparation:

[0027] Firstly, the sample titanium pretreatment process: water washing-alkali washing-acid washing-water washing, and the washing temperature is 26±1°C.

[0028] Prepare the coloring solution according to the following components:

[0029] h 2 SO 4 25ml·L -1 ;H 3 PO 4 30ml·L -1 Na 3 PO 4 60g·L -1 ;

[0030] Na 3 C 6 h 5 o 7 2H 2 O 100g·L -1 ; KMnO 4 35g·L -1 ;MnSO 4 8g·L -1 ;

[0031] CH 3 (CH 2 ) 11 C 6 h 4 SO 3 Na 19g·L.

[0032] Then immerse the sample in the electrolytic cell filled with the above coloring solution.

[0033] The main structural parameters and process parameters of the electrolysis equipment: the anode is the sample to be colored, the cathode is graphite, the distance between the cathode and anode plates is set to 10mm, the area ratio of the cathode and anode plates is 2:1, the coloring voltage is set to 5V, the coloring temperature is room temperature 25°C, and the colorin...

Embodiment 2

[0037] Bronze titanium sample preparation:

[0038] Firstly, the sample titanium pretreatment process: water washing-alkali washing-acid washing-water washing, and the washing temperature is 26±1°C.

[0039] Prepare the coloring solution according to the following components:

[0040] h 2 SO 4 40ml·L -1 ;H 3 PO 4 30ml·L -1 Na 3 PO 4 30g·L -1 ;

[0041] Na 3 C 6 h 5 o 7 2H 2 O 100g·L -1 ; KMnO 4 35g·L -1 ;MnSO 4 25g·L -1 ;

[0042] CH 3 (CH 2 ) 11 C 6h 4 SO 3 Na 28g·L -1 .

[0043] The sample was then immersed in an electrolytic cell filled with the above-mentioned coloring solution.

[0044] The main structural parameters and process parameters of the equipment: the anode is the sample to be colored, the cathode is graphite, the distance between the cathode and anode plates is set to 20mm, the area ratio of the cathode and anode plates is 2:1, the coloring voltage is set to 11V, the coloring temperature is room temperature 25°C, and the colorin...

Embodiment 3

[0048] Dark blue titanium sample preparation:

[0049] Firstly, the sample titanium pretreatment process: water washing-alkali washing-acid washing-water washing, and the washing temperature is 26±1°C.

[0050] Prepare the coloring solution according to the following components:

[0051] h 2 SO 4 40ml·L -1 ;H 3 PO 4 40ml·L -1 Na 3 PO 4 80g·L -1 ;

[0052] Na 3 C 6 h 5 o 7 2H 2 O 120g·L -1 ; KMnO 4 60g·L -1 ;MnSO 4 60g·L -1 ;

[0053] CH 3 (CH 2 ) 11 C 6 h 4 SO 3 Na 17g L -1 .

[0054] The sample was then immersed in an electrolytic cell filled with the above-mentioned coloring solution.

[0055] The main structural parameters and process parameters of the equipment: the anode is the sample to be colored, the cathode is graphite, the distance between the cathode and anode plates is set to 30mm, the area ratio of the cathode and anode plates is 3:1, the coloring voltage is set to 30V, the coloring temperature is room temperature 25°C, and the col...

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Abstract

The invention relates to a method for electrochemical coloring of metallic titanium and titanium-based alloys. Through electrochemical coloring at normal temperature and under normal pressure, the electrochemical anode on the surface of metallic titanium and a titanium-based alloy can be rapidly oxidized to blue, yellow and other colors, and the corrosion resistance and wear resistance of metallic titanium and titanium-based alloys can be effectively improved. The method provided by the invention has the advantages of low cost, environment friendliness, high efficiency and simple process, is easy for industrial application, and has wide application prospect.

Description

technical field [0001] The invention relates to the field of surface treatment and coloring of metal titanium and titanium-based alloys, in particular to a method for coloring the surface of titanium and titanium-based alloys with different colors. Background technique [0002] Metal titanium is a silver-gray metal with light texture and high mechanical strength. Because it is easy to form a dense oxide film on the surface, it has excellent resistance to acid and alkali corrosion, high temperature resistance, and low temperature resistance. It is widely used in industrial heat exchangers, reactors, building materials, electronic parts, precision instruments, advanced cameras, notebook computers, etc. It has become an important material for rocket engine shells, artificial satellites, and spacecraft in the aerospace industry. . [0003] Due to the soft texture of titanium, poor friction resistance; single color, poor aesthetics. Therefore, improving the surface color of tit...

Claims

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Application Information

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IPC IPC(8): C25D11/26
CPCC25D11/26
Inventor 张长松武卫明阎冬吕会超赵凌张允侯绍刚牛永生
Owner ANYANG INST OF TECH
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