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Nickel-copper alloy liquid for chemical plating and electroplating and method for preparing nickel-copper alloy noncrystalline-based composite coating

A nickel-copper alloy, composite coating technology, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the problem of small amorphous nanocrystalline composite coating and so on

Active Publication Date: 2012-10-03
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is still little research on the preparation of amorphous and nanocrystalline composite coatings by electroless plating

Method used

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  • Nickel-copper alloy liquid for chemical plating and electroplating and method for preparing nickel-copper alloy noncrystalline-based composite coating
  • Nickel-copper alloy liquid for chemical plating and electroplating and method for preparing nickel-copper alloy noncrystalline-based composite coating
  • Nickel-copper alloy liquid for chemical plating and electroplating and method for preparing nickel-copper alloy noncrystalline-based composite coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] In this example:

[0032] The formula of nickel-copper alloy liquid for electroless plating-electroplating is: solvent is deionized water, copper phosphate 8g / L, nickel sulfate 20g / L, hydrazine hydrate 1g / L, boric acid 10g / L.

[0033] The preparation process of using the above-mentioned nickel-copper alloy liquid electroless plating-electroplating to prepare the nickel-copper alloy amorphous matrix composite coating is as follows:

[0034] (1) The metal substrate is low-carbon steel; the surface of the metal substrate is pretreated to remove oil and oxide film. The specific process is: add an appropriate amount of sodium lauryl sulfate to a NaOH solution with a concentration of 10% by mass to obtain a mixed Solution, the concentration of sodium lauryl sulfate in the mixed solution is 1g / l, put the metal substrate into the mixed solution, wash at a cleaning temperature of 50°C for 8 minutes, and then use mechanical polishing to oxidize the surface of the metal substrate ...

Embodiment 2

[0055] In this example:

[0056] The formula of nickel-copper alloy liquid for electroless plating-electroplating is: solvent is deionized water, copper chloride 2g / L, nickel chloride 15g / L, dimethylaminoborane 2g / L, sodium citrate 20g / L.

[0057] The preparation process of using the above-mentioned nickel-copper alloy liquid electroless plating-electroplating to prepare the nickel-copper alloy amorphous matrix composite coating is as follows:

[0058] (1) The metal substrate is low-carbon steel; the surface of the metal substrate is pretreated to remove oil and oxide film. The specific process is: add an appropriate amount of sodium lauryl sulfate to a KOH solution with a concentration of 15% by mass to obtain a mixed solution, the concentration of sodium lauryl sulfate in the mixed solution is 5g / l, put the metal substrate into the mixed solution, wash at a cleaning temperature of 60°C for 5 minutes, and then use chemical polishing to oxidize the surface of the metal substra...

Embodiment 3

[0063] In this example:

[0064] The formula of nickel-copper alloy liquid for electroless plating-electroplating is: solvent is deionized water, copper phosphate 6g / L, nickel sulfate 25g / L, formaldehyde 1.5g / L, potassium sodium pyrophosphate 12g / L.

[0065] The preparation process of using the above-mentioned nickel-copper alloy liquid electroless plating-electroplating to prepare the nickel-copper alloy amorphous matrix composite coating is as follows:

[0066] (1) The metal substrate is low-carbon steel; the surface of the metal substrate is pretreated to remove oil and oxide film. The specific process is: add an appropriate amount of sodium lauryl sulfate to a KOH solution with a concentration of 12% by mass to obtain a mixed solution, the concentration of sodium lauryl sulfate in the mixed solution is 6g / l, the metal substrate is put into the mixed solution, and cleaned at a cleaning temperature of 40°C for 10 minutes, and then the surface of the metal substrate is oxidiz...

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Abstract

The invention provides nickel-copper alloy liquid for chemical plating and electroplating. The nickel-copper alloy liquid for the chemical plating and the electroplating comprises 1-10g / L of copper salt, 20-60g / L of nickel salt, 10-20g / L of complexing agent and 1-10g / L of reducing agent by taking deionized water as a solvent. By using the nickel-copper alloy liquid, a nickel-copper alloy composite coating is prepared on the surface of a metal base by adopting a method of chemical plating and electroplating synergetic deposition. The coating not only is of a nanocrystalline structure but also is of a noncrystalline structure, and moreover, nanocrystallines are evenly distributed in a noncrystalline continuous phase. The coating is a nickel-copper alloy noncrystalline-based composite coating. The nickel-copper alloy noncrystalline-based composite coating has the properties of the noncrystalline structure and the crystalline structure, thus, the combination property of the coating is obviously improved, such as corrosion resistance, wear resistance, high strength, high hardness and excellent room-temperature ductility, and the application range of a metal matrix is greatly broadened.

Description

technical field [0001] The invention relates to the technical fields of surface coating preparation, electroplating and chemical plating of metal materials, in particular to a nickel-copper alloy solution for electroless plating-electroplating, which is used to prepare a nickel-copper alloy amorphous base composite coating method, and the prepared nickel-copper alloy composite coating with amorphous-nanocrystalline structure. Background technique [0002] Both electroplating and electroless plating have a history of more than 160 years. The history of industrial application of electroplating to prepare coatings has been around for quite some time, and the application of electroless plating to prepare coatings started from the General American Transportation Company (GATC) in the 1850s. The coating prepared by the electroplating method has a crystalline or nanocrystalline structure, and the coating prepared by the electroless plating can obtain coatings with various structur...

Claims

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Application Information

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IPC IPC(8): C23C18/50C25D3/56
Inventor 曾志翔于全耀乌学东薛群基
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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