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Wear-resistant foamed nickel and preparation method thereof

A technology of nickel foam and carbon foam, applied in electrolytic coatings, coatings and other directions, can solve problems such as surface wear, and achieve the effects of simple operation, low cost and large specific surface area

Inactive Publication Date: 2017-06-06
CHANGDE LYRUN MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to overcome the surface abrasion problem of porous foam materials, especially foam nickel materials, during use, and provides a kind of wear-resistant foam nickel and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Preparation of carbon foam: first heat polyurethane foam in air at 200°C; then carbonize in an inert atmosphere at 900°C; thereby prepare carbon foam.

[0023] (2) Deposit nickel on the carbon foam: clean the prepared carbon foam and fully immerse it in the plating solution for 5 minutes ; With the prepared carbon foam as the cathode, 99.99% pure nickel as the anode, and nickel sulfate as the main salt, a nickel coating of 1 μm is deposited on the surface of the carbon foam by alternating current pulses to obtain a nickel foam material.

[0024] (3) Preparation of surface wear-resistant layer: put the foam nickel above into a high-concentration nickel plating solution, and add an appropriate amount of SiC nano-powder with a particle size of 10 nm in the plating solution. The high current of the piezoelectric source quickly deposits SiC and i grains on the surface of nickel foam to obtain a SiC-Ni composite coating, and controls the relevant parameters to make the co...

Embodiment 2

[0028] (1) Preparation of carbon foam: first heat polyurethane foam in air at 260°C; then carbonize in an inert atmosphere at 850°C; thereby prepare carbon foam.

[0029] (2) Deposit nickel on the carbon foam: clean the prepared carbon foam and fully immerse it in the plating solution for 15 minutes ; With the prepared carbon foam as the cathode, 99.99% pure nickel as the anode, and nickel sulfate as the main salt, by alternating current pulses, a nickel coating of 2 μm is deposited on the surface of the carbon foam to obtain a nickel foam material.

[0030] (3) Preparation of surface wear-resistant layer: put the foam nickel above into a high-concentration nickel plating solution, and add an appropriate amount of SiC nano-powder with a particle size of 20nm in the plating solution. The high current of the piezoelectric source quickly deposits SiC grains on the surface of nickel foam to obtain a SiC-Ni composite coating, and controls the relevant parameters to make the coating...

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PUM

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Abstract

The invention discloses wear-resistant foamed nickel and a preparation method thereof. The foamed nickel is composed of a conductive carbon foam substrate, a nickel coating on the surface of carbon foam and a surface wear-resistant layer. The preparation method for the wear-resistant foamed nickel comprises the following steps: preparing the carbon foam and fully dipping the carbon foam in a plating solution for 5 to 30 min; with the carbon foam as a negative pole and a pure nickel target as a positive pole, turning on an AC electric pulse and depositing the nickel coating on the surface of the carbon foam substrate; putting substrate into a plating solution containing nanometer SiC powder and depositing SiC and Ni crystal grains on the surface of foamed nickel; and taking out the foamed nickel, cleaning the foamed nickel with distilled water and then drying the foamed nickel. The prepared foamed nickel has same excellent performance as a carbon material and metallic nickel; a three-dimensional net structure is formed in the foamed nickel and composed of staggerly connected irregular holes with different sizes; and the prepared foamed nickel has the advantages of light mass and a large specific surface area.

Description

technical field [0001] The invention relates to a foam material and a preparation method thereof, in particular to a wear-resistant foamed nickel and a preparation method thereof. Background technique [0002] Nickel foam is one of the most important metal foams, and is generally prepared by electrodeposition. The nickel foam prepared by this method has a three-dimensional network structure, all pores are connected, and the porosity is relatively high. It has good fluid permeability and sound absorption performance, so nickel foam can be used as a metal filter, a speaker box in audio equipment, and an electric wave shielding material for pulse power supplies. Nickel foam can improve the performance of the battery and has been applied earlier; the use of nickel foam to strengthen the aluminum alloy piston can greatly improve the service life of the piston. In addition, nickel foam also has a good application prospect in chemical equipment. Therefore, it is of great signifi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/12C25D5/18C25D15/00C25D7/00
Inventor 余兴华易秋珍钟建夫朱济群
Owner CHANGDE LYRUN MATERIAL