Low-bubble weak-acid chloride zinc-nickel alloy electroplate liquid

A zinc-nickel alloy and electroplating solution technology, applied in the field of electroplating zinc-nickel alloys, can solve the problems of low brightness, poor corrosion resistance, and the plating solution cannot be operated by air stirring, and achieves a wide working temperature range, cost reduction, and network connection. Strong synergistic effect

Inactive Publication Date: 2015-10-28
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention solves the technical problems that the existing plating solution cannot be operated by air stirring, has low brightness and poor corrosion resistance, and provides a low-foaming type weakly acidic chloride zinc-nickel alloy electroplating solution

Method used

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  • Low-bubble weak-acid chloride zinc-nickel alloy electroplate liquid
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  • Low-bubble weak-acid chloride zinc-nickel alloy electroplate liquid

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specific Embodiment approach 1

[0020] Specific embodiment one: the present embodiment is a kind of low-foam type weakly acidic chloride zinc-nickel alloy electroplating solution, it is characterized in that the component of this plating solution comprises zinc chloride, nickel chloride, potassium chloride, ammonium chloride, main Brighteners, carrier brighteners, displacement agents and complexing agents;

[0021] Wherein, the concentration of zinc chloride is 80~100g / L, the concentration of nickel chloride is 120~140g / L, the concentration of potassium chloride is 100~140g / L, the concentration of ammonium chloride is 50~80g / L, The concentration of the main brightener is 5-20mL / L, the concentration of the carrier brightener is 10-30mL / L, the concentration of the displacement agent is 10-20mL / L, and the concentration of the complexing agent is 20-50mL / L.

specific Embodiment approach 2

[0022] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the composition of the main brightener includes o-chlorocinnamic acid, formaldehyde and absolute ethanol; wherein, the concentration of o-chlorocinnamic acid is 10-30g / L , the formaldehyde concentration is 15-40g / L, and the balance is absolute ethanol. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0023] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the composition of the carrier brightener includes polyethylene glycol-400, polyethylene glycol-1000, polyethylene glycol-4000, polyethylene glycol -6000 and distilled water, wherein the concentration of polyethylene glycol-400 is 10-40g / L, the concentration of polyethylene glycol-1000 is 10-40g / L, the concentration of polyethylene glycol-4000 is 10-40g / L, and the concentration of polyethylene glycol-4000 is 10-40g / L. The concentration of ethylene glycol-6000 is 10-40g / L, and the balance is distilled water. Others are the same as in the first or second embodiment.

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Abstract

The invention relates to the technical field of zinc-nickel alloy electroplating, in particular to a low-bubble weak-acid chloride zinc-nickel alloy electroplate liquid and aims to solve the technical problems that existing plating solutions cannot be subjected to air agitation operation, the brightness is low and the corrosion resistance is poor. The electroplate liquid comprises components as follows: zinc chloride, nickel chloride, potassium chloride, ammonium chloride, a main brightener, a carrier brightener, a throwing agent and a complexing agent. The electroplate liquid can be subjected to air agitation and continuous filtration operation and cannot produce a large quantity of bubbles, a plating coat with a bright mirror surface can be obtained, and the current range is wide. The low-bubble weak-acid chloride zinc-nickel alloy electroplate liquid is used for electroplating.

Description

technical field [0001] The invention relates to the technical field of electroplating zinc-nickel alloy. Background technique [0002] Zn-Ni, Zn-Fe and Zn-Co alloys are more widely studied and widely used in zinc alloy electroplating process. Zn-Fe alloy can mainly replace the traditional galvanizing process. This process requires high iron content in the coating, poor plating ability, large influence of temperature fluctuation on the coating, and inconvenient maintenance; Zn-Co alloy is mostly used as a substitute for chromium. Plating, cobalt metal is relatively expensive, and the operating cost is high. In contrast, the physical and chemical properties of the Zn-Ni alloy coating are more excellent. When the nickel content in the zinc-nickel alloy coating is about 13wt%, the corrosion resistance effect of the zinc-nickel alloy coating is more than 5 times higher than that of the zinc coating with the same thickness; passivation treatment after plating can greatly improve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/56
Inventor 李宁田相军代洋洋冯荣坤黎德育
Owner HARBIN INST OF TECH
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