Method for electroplating titanium on surface of metal

A metal surface and metal technology, applied in the field of titanium electroplating on metal surface, can solve the problems of simple and complex process, many process steps, difficult operation, etc., and achieve the effects of simple steps, reduced use cost, and increased production safety.

Inactive Publication Date: 2013-09-25
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The arc ionization electroplating method needs to use metal titanium as raw material, which has high cost, many process steps, large energy consumption, simple and complicated process, and difficult operation.

Method used

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  • Method for electroplating titanium on surface of metal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Choose TiO x C y (x is 1, y is 1) as the basic raw material, add 10% PVC, mix evenly and vibrate to shape, carry out high-temperature sintering at 1500°C for 10 hours, connect the guide rod as the electroplating anode after forming, and use carbon steel rod As a cathode for electroplating. After electroplating with 10A DC for 3 hours, take out the cathode after cooling, and soak it in tap water. The electroplated part does not rust, which proves that there is titanium plating on it.

Embodiment 2

[0029] Choose TiO x C y (x is 0.5, y is 0.5) as the basic raw material, add 12% PVC as a binder, mix evenly and vibrate to form, carry out high-temperature sintering at 1800°C for 8 hours, form and connect the guide rod as an electroplating anode, Electroplating is carried out with a bright copper mesh connected to the guide rod as the cathode. Perform electroplating with a square wave current with a size of 0A-10A-0A and a period of 30 minutes. After cooling for 2 hours, take out the cathode and soak it in tap water. The bright copper mesh turns gray and black, which proves that there is titanium plating on it.

Embodiment 3

[0031] Choose TiO x C y (x is 1, y is 1) as the basic raw material, add 15% paraffin as a binder, mix evenly and vibrate to form, sinter at 1700°C for 8 hours at a high temperature, form and connect the guide rod as an electroplating anode, Electroplating is performed with a bright copper sheet connected to a silver wire as the cathode. Perform electroplating with 1A current for 10 minutes and 10A current for 10 minutes for cyclic square wave current for 2 hours, then cool and take out the cathode, soak it in 3% hydrochloric acid, and there are gray and black substances attached to the bright copper sheet, which proves that there is titanium plating on it.

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Abstract

The invention relates to a method for electroplating titanium on the surface of metal. The method is characterized in that TiOxCy is taken as a positive pole, metal to be electroplated is taken as a negative pole and molten salt is taken as an electrolyte in the titanium electroplating process. By the method provided by the invention, the aim of corrosion resistance can be achieved through electroplating titanium on the surface of metal with the melting point of 800 DEG C, such as carbon steel, stainless steel, foamy copper and foamy nickel, and other matrixes, the use cost of a titanium material can be greatly reduced, the application field of the titanium metal is widened, and the titanium is not only taken as precious space metal. The electro-deposition on general metal can be realized with least reaction steps and cheapest raw materials; the titanium electroplating is directly finished from the step of electrolyzing the raw materials of titanium, so that the step for preparing the titanium through electrolysis is omitted, the loss of the raw materials and energy sources is reduced, the efficiency of electrolytic current and the utilization ratio of the raw materials are improved, and the titanium electroplating cost is reduced.

Description

technical field [0001] The invention relates to a method for electroplating titanium on a metal surface. Background technique [0002] Titanium is a light metal with high specific strength and high corrosion resistance. Because it is expensive, its use is limited. Generally, it can only be used in expensive aircraft and aerospace vehicles, so it is also called "space metal". Titanium electroplating technology can coat a layer of titanium film on the surface of general metals to achieve anti-corrosion effect, which can greatly reduce the cost of use, and use titanium more in corrosive environments such as oceans. [0003] Because the discharge potential of titanium is very negative (its standard electrode potential is about -1.75V), the deposition of titanium is not easy, and the electroplating technology of titanium is also very imperfect. At present, there are mainly two methods for titanium electroplating, the most commonly used method It is to ionize metal titanium into ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/66
Inventor 杨建红孙凤娟秦庆东王芳平
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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