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Method for electroplating nickel-cobalt alloy coating on material substrate

A nickel-cobalt alloy and electroplating nickel technology, applied in the field of materials, can solve the problems of wear resistance, poor strength and plasticity, insufficient coating thickness, poor flatness, etc., and achieve the effect of smooth surface, good flatness, and good wear resistance

Inactive Publication Date: 2019-10-18
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method for electroplating a nickel-cobalt alloy coating on a material substrate, which aims to solve the existing problems such as insufficient coating thickness and rough surface in the existing method of depositing a nickel-cobalt alloy coating on a material substrate by electrodeposition. , poor compactness, poor flatness, poor wear resistance, poor strength and plasticity, etc.

Method used

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  • Method for electroplating nickel-cobalt alloy coating on material substrate
  • Method for electroplating nickel-cobalt alloy coating on material substrate
  • Method for electroplating nickel-cobalt alloy coating on material substrate

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Embodiment 1

[0058] This embodiment provides a method for electroplating a nickel-cobalt alloy coating on a material substrate, comprising the following steps:

[0059] Prepare the electroplating solution containing cobalt ion: prepare the electroplating solution 6L containing nickel sulfate 75g / L, nickel chloride 55g / L, cobalt sulfate 55g / L, boric acid 50g / L, sodium chloride 15g / L with deionized water, wherein 5L is used for formal electroplating, and 1L is used for trial plating.

[0060] Drop into 30g gac into above-mentioned prepared electroplating solution, and adopt magnetic agitation stirring adsorption at room temperature for 3 hours, then, remove residual gac by suction filtration of vacuum suction filter.

[0061] The filtered electroplating solution is subjected to electrolytic adsorption to remove impurities under a DC power supply with an average current of 0.1A. The cathode is made of a thin steel plate folded into a corrugated shape, and electrolyzed for 8 hours.

[0062] P...

Embodiment 2

[0065] This embodiment provides a method for electroplating a nickel-cobalt alloy coating on a material substrate, comprising the following steps:

[0066] Prepare the electroplating solution containing cobalt ion: prepare the electroplating solution 6L containing nickel sulfate 85g / L, nickel chloride 60g / L, cobalt sulfate 60g / L, boric acid 60g / L, sodium chloride 15g / L with deionized water, wherein 5L is used for formal electroplating, and 1L is used for trial plating.

[0067] Drop into 30g gac into above-mentioned prepared electroplating solution, and adopt magnetic agitation stirring adsorption at room temperature for 3 hours, then, remove residual gac by suction filtration of vacuum suction filter.

[0068] The filtered electroplating solution is subjected to electrolytic adsorption to remove impurities under a DC power supply with an average current of 0.1A. The cathode is made of a thin steel plate folded into a corrugated shape, and electrolyzed for 8 hours.

[0069] P...

Embodiment 3

[0072] This embodiment provides a method for electroplating a nickel-cobalt alloy coating on a material substrate, comprising the following steps:

[0073] Prepare the electroplating solution containing cobalt ion: prepare the electroplating solution 6L containing nickel sulfate 70g / L, nickel chloride 60g / L, cobalt sulfate 60g / L, boric acid 55g / L, sodium chloride 15g / L with deionized water, wherein 5L is used for formal electroplating, and 1L is used for trial plating.

[0074] Drop into 30g gac into above-mentioned prepared electroplating solution, and adopt magnetic agitation stirring adsorption at room temperature for 3 hours, then, remove residual gac by suction filtration of vacuum suction filter.

[0075] The filtered electroplating solution is subjected to electrolytic adsorption to remove impurities under a DC power supply with an average current of 0.1A. The cathode is made of a thin steel plate folded into a corrugated shape, and electrolyzed for 8 hours.

[0076] P...

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Abstract

The invention is applicable to the field of materials, and provides a method for electroplating a nickel-cobalt alloy coating on a material substrate. The method comprises the following steps that adding the impurity-removed electroplating solution into an electroplating container, adding an anionic surfactant, putting into a surface-treated soluble nickel plate and a cathode material, the pulse electroplating time is 23-24 hours, the average pulse current density is 1.8-3 A / dm2, the duty ratio is 30-50%, the period is 1-2 ms, the stirring speed is 200-300 r / min; and carrying out pulse electroplating under the condition that the temperature of the electroplating solution is 50-65 DEG C and the pH value is 2-3, so that the surface of the cathode material is deposited to form a nickel-cobaltalloy coating containing a nano-twin-phase structure and a double-phase structure. The nickel-cobalt alloy coating obtained by adopting the method has a dual-phase structure with both FCC and HCP, the surface of the nickel-cobalt alloy coating is smooth, is compact in structure, good in flatness and free of cracks, and has good wear resistance and relatively high strength and plasticity.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a method for electroplating a nickel-cobalt alloy coating on a material substrate. Background technique [0002] Nickel-cobalt alloys are widely used in the surface protection of metal devices and decorative coatings because of their high strength and hardness, wear resistance, corrosion resistance, and high temperature resistance. Mainstream material. [0003] With the continuous development of science and technology, the performance requirements of functional materials and structural materials in the industry are also continuously increasing. For example, the quality requirements of protective coatings on metal materials are also continuously increasing. The electrodeposition method, also known as the electrocrystallization process (commonly known as electroplating), means that under the condition of an external current, the cations in the electroplating solution move directionally to...

Claims

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Application Information

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IPC IPC(8): C25D3/56C25D5/18
CPCC25D3/562C25D5/18
Inventor 蔡泽宇李恒韩双陈岩孙朔连建设
Owner JILIN UNIV
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