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Nickel plating liquid and method for preparing nickel-based plating layer by using same

A technology of nickel plating solution and plating solution, which is applied in the field of metal surface treatment, can solve the problems of reducing the stability of chemical plating solution, environmental and human hazards, and high process cost, and achieve the simplification of the plating process, fewer processes, and simple operation Effect

Active Publication Date: 2016-02-03
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reducing agent used in electroless nickel plating has great harm to the environment and human body, and can significantly reduce the stability of the electroless plating solution and increase the cost of maintenance and adjustment of the plating solution
In addition, many metals (such as copper, etc.) are non-catalytically active metals, which cannot be directly electroless plated, but must be activated chemically or electrochemically, which is complex in operation and high in process cost

Method used

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  • Nickel plating liquid and method for preparing nickel-based plating layer by using same
  • Nickel plating liquid and method for preparing nickel-based plating layer by using same
  • Nickel plating liquid and method for preparing nickel-based plating layer by using same

Examples

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Effect test

Embodiment 1

[0032] 1, a kind of nickel plating liquid, comprise each component of following weight: nickel sulfate 25g, potassium sodium tartrate 70g, sodium hydroxide 30g, water 1000g 。

[0033] 2, the nickel-plating solution described in the present embodiment prepares the method for nickel-based coating, it may further comprise the steps:

[0034] (1) Degreasing and cleaning the copper surface;

[0035] (2) Contact copper and pure aluminum, and immerse in the above-mentioned plating solution in time, and apply plating for 40 minutes at a temperature of 60°C;

[0036] (3) After the plating is completed, rinse and dry the copper surface.

[0037] The nickel plating layer with good appearance is obtained through the above process technology, and the bonding force between the surface nickel plating layer and copper is good. Photos of copper before and after nickel plating are shown in figure 1 , the potentiodynamic polarization curves of copper in 3.5% NaCl solution before and after ni...

Embodiment 2

[0039] 1, a kind of nickel plating liquid, comprise each component of following weight: Plating liquid consists of: nickel sulfate 30g, ferrous sulfate 10g, potassium sodium tartrate 120g, water 1000g, 10% sodium hydroxide aqueous solution regulates the pH of plating liquid The value is 12.0.

[0040] 2, the nickel-plating solution described in the present embodiment prepares the method for nickel-based coating, it may further comprise the steps:

[0041] (1) Degreasing and cleaning the copper surface;

[0042] (2) Contact the copper and aluminum sheets, and immerse them in the above alkaline washing solution in time, and use them. Plating for 60 minutes at a temperature of 70°C;

[0043] (3) After the plating is completed, rinse and dry the copper surface.

[0044] The nickel-iron coating with good appearance is obtained through the above process technology, and the surface nickel-iron coating has good bonding force with copper. See before and after photos of nickel-iron-...

Embodiment 3

[0046] 1, a kind of nickel plating liquid, comprise each component of following weight: Plating liquid consists of: nickel sulfate 20g / L, potassium sodium tartrate 100g / L, analytical pure ammoniacal liquor 200ml, water 1000g;

[0047] 2, the nickel-plating solution described in the present embodiment prepares the method for nickel-based coating, it may further comprise the steps:

[0048] (1) Degreasing and cleaning the copper surface;

[0049] (2) Contact the copper and aluminum sheets, and immerse them in the alkaline washing solution in time, and apply plating for 15 minutes at a temperature of 30°C;

[0050] (3) After the plating is completed, rinse and dry the copper surface.

[0051] The nickel plating layer with good appearance is obtained through the above process technology, and the bonding force between the surface nickel plating layer and copper is good. Compared with the copper substrate, the corrosion current density of copper after nickel plating decreased by 6...

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Abstract

The invention discloses nickel plating liquid and a method for preparing a nickel-based plating layer by using the same. The nickel plating liquid comprises nickel salt, a complexing agent, a pH adjusting agent, a composite, a brightening agent and water. The method for preparing the nickel-based plating layer by using the nickel plating liquid comprises the following steps: (1) the oil removal and the cleaning are performed for a metal surface; (2) metal is contacted with pure aluminum or zinc; and the two are dipped in the nickel plating liquid for plating; and (3) after the plating is finished, the metal surface is flushed and blown. The nickel plating liquid contains no traditional reducing agent, stable in plating liquid and low in cost; the nickel-based plating layer preparation process is few in steps, short in time consumption, simple in operation and easy to be controlled; and the prepared nickel-based plating layer has such advantages as excellent bonding force and excellent corrosion preventing and wear reducing performance.

Description

technical field [0001] The invention relates to a nickel plating solution and a method for preparing a nickel-based coating by using the same, belonging to the technical field of metal surface treatment. Background technique [0002] Nickel coating has the advantages of strong corrosion resistance, good wear resistance and high polish, and by adding other metals (such as iron, cobalt, copper, zinc, etc.) or composites (such as SiC, Al 2 o 3 , ZrO 2 , graphite, graphene, PTFE, etc.) and nickel co-deposited nickel-based coatings have more excellent performance and can meet the needs of different occasions. Based on the above characteristics, nickel coating has broad application prospects in many aspects as a protective and decorative coating. Because the electroless plating technology has the characteristics of low cost, simple operation and good profiling, electroless plating is one of the more commonly used methods for preparing nickel coatings. [0003] The so-called el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/12
Inventor 张俊彦张兴凯周妍杨生荣
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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