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Method for plating nickel on surface of aluminum alloy

An aluminum alloy surface, aluminum alloy technology, applied in liquid chemical plating, superimposed layer plating, metal material coating process, etc., to achieve the effect of improving stability, enhancing bonding force, and improving corrosion resistance

Active Publication Date: 2021-11-02
东莞普瑞得五金塑胶制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] (1) The technical problem of surface treatment of inorganic particles to improve their water solubility is rarely considered in the existing composite plating technology

Method used

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  • Method for plating nickel on surface of aluminum alloy
  • Method for plating nickel on surface of aluminum alloy
  • Method for plating nickel on surface of aluminum alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A method for nickel plating on the surface of an aluminum alloy, the method comprising:

[0062] (1) Surface treatment of aluminum alloy, the treatment steps include degreasing-water washing-activation-water washing.

[0063] (2) Galvanizing treatment.

[0064] (3) Configure the nickel plating solution.

[0065] (4) In electroplating nickel.

[0066] Include nickel sulfate 250g / L, nickel chloride 30g / L, boric acid 30g / L, 1g / L benzenesulfonic acid main brightener, 0.2g / L butynediol secondary brightener, 0.1g / L in described plating bath L sodium ethylene sulfonate auxiliary brightener and 0.01g / L sodium lauryl sulfate, 5g / L ZrC dispersion.

[0067] Wherein the preparation process of the ZrC dispersion liquid is as follows:

[0068] ZrC nanoparticles of 30-60nm are selected, and the nanoparticles are subjected to alkali washing, pickling, ultrasonication, hydroxyl oxidation treatment, grafting treatment, and hydrolysis treatment accordingly.

[0069] The alkali elutio...

Embodiment 2

[0082] A method for nickel plating on the surface of an aluminum alloy, the method comprising:

[0083] (1) Surface treatment of aluminum alloy, the treatment steps include degreasing-water washing-activation-water washing.

[0084] (2) Galvanizing treatment.

[0085] (3) Configure the nickel plating solution.

[0086] (4) In electroplating nickel.

[0087] Include nickel sulfate 275g / L, nickel chloride 35g / L, boric acid 32.5g / L, 1.5 g / L benzenesulfonic acid primary brightener, 0.3 g / L butynediol secondary brightener, 0.15 g / L sodium ethylene sulfonate auxiliary brightener and 0.015 g / L sodium lauryl sulfate, 15g / L ZrC dispersion. Wherein the preparation process of the ZrC dispersion liquid is as follows:

[0088] ZrC nanoparticles of 30-60nm are selected, and the nanoparticles are subjected to alkali washing, pickling, ultrasonication, hydroxyl oxidation treatment, grafting treatment, and hydrolysis treatment accordingly.

[0089] The alkali-eluting degreasing solution i...

Embodiment 3

[0102] A method for nickel plating on the surface of an aluminum alloy, the method comprising:

[0103] (1) Surface treatment of aluminum alloy, the treatment steps include degreasing-water washing-activation-water washing.

[0104] (2) Galvanizing treatment.

[0105] (3) Configure the nickel plating solution.

[0106] (4) In electroplating nickel.

[0107] Include nickel sulfate 250-300g / L, nickel chloride 30-40g / L, boric acid 35g / L, 2 g / L benzenesulfonic acid main brightener, 0.4 g / L butynediol secondary brightener in the described plating bath agent, 0.2 g / L sodium ethylene sulfonate auxiliary brightener and 0.02 g / L sodium lauryl sulfate, 25 g / L ZrC dispersion. Wherein the preparation process of the ZrC dispersion liquid is as follows:

[0108] ZrC nanoparticles of 30-60nm are selected, and the nanoparticles are subjected to alkali washing, pickling, ultrasonication, hydroxyl oxidation treatment, grafting treatment, and hydrolysis treatment accordingly.

[0109] The a...

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Abstract

The invention provides a method for plating nickel on the surface of an aluminum alloy. The method comprises the following steps: (1) carrying out surface treatment on the aluminum alloy; (2) carrying out zinc immersion treatment; (3) preparing a nickel plating solution; and (4) carrying out nickel electroplating, specifically, a high-dispersion ZrC sulfuric acid aqueous solution serves as a dissolving phase in a nickel plating solution, and an obtained plating layer is excellent in physical and chemical performance such as corrosion resistance, hardness and abrasion resistance.

Description

technical field [0001] The invention relates to the technical field of surface modification of metal materials, in particular to a preparation method for Ni-ZrC composite nickel plating on the surface of an aluminum alloy. Background technique [0002] Aluminum alloy has the advantages of light weight, high mechanical strength, and easy processing, but its disadvantages such as low hardness and poor wear resistance affect its application range and service life. The above-mentioned problems can be overcome by electrodepositing metal-based composite coatings containing second-phase particles on the surface of aluminum alloys. Among them, the nickel-based composite coating has been widely studied, and the functions of the added particles are different. For example, adding SiC, A12O3, diamond and other hard particles can increase the hardness of the coating, and adding polytetrafluoroethylene, hexagonal boron nitride, carbon nanotubes, MoS2, WS2, graphite and other solid lubric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/44C25D15/00C23C18/16C23C18/52C23C28/02C25D3/12
CPCC25D5/44C25D3/12C25D15/00C23C18/1653C23C18/52C23C28/025
Inventor 张政
Owner 东莞普瑞得五金塑胶制品有限公司