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Method for electroplating copper-graphite composite material on surface of TC4 titanium alloy

A technology of composite materials and titanium alloys, applied in the direction of electrolytic coatings, coatings, etc., can solve the problems of poor wear resistance of coatings, and achieve the effects of low cost, high efficiency, and good wear resistance

Inactive Publication Date: 2019-02-22
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: the existing problem that the coating formed by copper plating on the surface of titanium alloy has poor wear resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1 uses the inventive method to electroplate copper-graphite composite material on titanium alloy surface

[0045] The particle size is 10um, the density is 2.2g / cm 3 Graphite powder, activated at 380°C for 2 hours, added nitric acid, boiled for 15 minutes, coarsened, washed and dried for later use;

[0046] to TC 4 Copper-plate the surface of the titanium alloy sample with a size of 20×20×5mm, assemble the titanium alloy and molybdenum wire to form a cathode, and then seal the periphery with resin, leaving only 1cm 2 The area of ​​is plated outside in order to calculate the current density.

[0047] Electrolysis parameters: CuSO 4 ·5H 2 O and H 2 SO 4 Prepare the plating solution according to the mass ratio of 10:3.

[0048] Implementation process: (1) First wash the grease on the surface of the titanium alloy with gasoline to remove excessive oil stains on the surface of the titanium alloy. Then carry out saponification and degreasing, heat the NaOH ...

Embodiment 2

[0052] Embodiment 2 uses the inventive method to electroplate copper-graphite composite material on titanium alloy surface

[0053] The particle size is 10um, the density is 2.2g / cm 3 Graphite powder, activated at 450°C for 1 hour, added nitric acid, boiled for 15 minutes, roughened, washed and dried for later use;

[0054] to TC 4 Copper-plate the surface of the titanium alloy sample with a size of 20×20×5mm, assemble the titanium alloy and molybdenum wire to form a cathode, and then seal the periphery with resin, leaving only 1cm 2 The area of ​​is plated outside in order to calculate the current density.

[0055] Electrolysis parameters: CuSO 4 ·5H 2 O and H 2 SO 4 Prepare the plating solution according to the mass ratio of 10:3.

[0056] Implementation process: (1) First wash the grease on the surface of the titanium alloy with gasoline to remove excessive oil stains on the surface of the titanium alloy. Then carry out saponification and oil removal, heat the NaOH ...

Embodiment 3

[0059] Embodiment 3 uses the inventive method to electroplate copper-graphite composite material on titanium alloy surface

[0060] The particle size is 10um, the density is 2.2g / cm 3 Graphite powder was activated at 400°C for 1.5 hours, added nitric acid, boiled for 15 minutes, coarsened, washed and dried for later use;

[0061] to TC 4 Copper-plate the surface of the titanium alloy sample with a size of 20×20×5mm, assemble the titanium alloy and molybdenum wire to form a cathode, and then seal the periphery with resin, leaving only 1cm 2 The area outside is electroplated.

[0062] Electrolysis parameters: CuSO 4 ·5H 2 O and H 2 SO 4 Prepare the plating solution according to the mass ratio of 10:3.

[0063] Implementation process: (1) First wash the grease on the surface of the titanium alloy with gasoline to remove excessive oil stains on the surface of the titanium alloy. Then carry out saponification and oil removal, heat the NaOH solution to 80°C to 100°C, put the...

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Abstract

The invention belongs to the technical field of titanium alloy surface electroplating, in particular to a method for electroplating a copper-graphite composite material on the surface of a TC4 titanium alloy. The method aims at solving the problem that the abrasion resistance of a plating layer formed by plating copper on the surface of a titanium alloy is poor. The method for electroplating the copper-graphite composite material on the surface of the TC4 titanium alloy comprises the following steps that a, graphite powder is scorched, nitric acid is added for coarsening, a copper sulfate solution and a sulfuric acid solution are mixed to form an electroplating solution, and graphite is added into the electroplating solution; b, degreasing treatment is carried out on the surface of the TC4titanium alloy, and then acid erosion activation is carried out; and c, the electroplating solution is added into an electrolytic tank, the titanium alloy obtained in the step b is assembled by usinga metal molybdenum wire into a cathode, a copper plate is an anode, the electroplating solution is stirred, electrolysis is carried out for 10-60 minutes at normal temperature, and then the copper-graphite composite material is obtained on the surface of the titanium alloy through electroplating. According to the electroplating method, the operation is simple, a copper-graphite composite platinglayer can be obtained through electroplating, the abrasion resistance of the plating layer is better, and the value of the plating layer is higher.

Description

technical field [0001] The invention belongs to the technical field of titanium alloy surface electroplating, and specifically relates to a TC 4 A method for electroplating copper-graphite composites on the surface of titanium alloys. Background technique [0002] Composite coating refers to the coating made by purposely adding some insoluble particles to the general plating solution to obtain a material with special properties, and then uniformly dispersing it and co-depositing it with the ions in the plating solution on the surface of the base material. With the continuous advancement of science and technology, the performance requirements of materials are also continuously improved. Traditional metal surface coatings are increasingly unable to meet the wear resistance, surface hardness, corrosion resistance, electrical conductivity and self-lubricating properties of materials. aspect requirements. Therefore, in order to improve the quality of coatings, more and more res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/58C25D15/00C25D5/34
CPCC25D3/58C25D5/34C25D15/00
Inventor 龙秀丽李道玉刘波陈勇
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
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