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A kind of alkaline zinc-nickel alloy electroplating solution and its preparation method and application

A technology of zinc-nickel alloy and electroplating solution, which is applied in the field of electroplating, can solve the problems of low electroplating efficiency, difficult to achieve, high corrosion resistance, etc., and achieve the effect of simple preparation method, high electroplating efficiency and high wear resistance

Active Publication Date: 2016-12-28
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the additives and brighteners used in the above method are relatively single, and it is difficult to meet the requirements of the comprehensive performance of the coating. For example, the electroplating efficiency is low, only 6 μm in 20 minutes, and the film is thin, so it is difficult to achieve high corrosion resistance. In addition, there is no coating The performance parameters of hardness cannot be applied to the wear resistance requirements of shaft parts of high voltage electrical appliances

Method used

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  • A kind of alkaline zinc-nickel alloy electroplating solution and its preparation method and application

Examples

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Embodiment 1

[0041] In the alkaline zinc-nickel alloy electroplating solution in the present embodiment, every liter of electroplating solution comprises the following components: 150.0 g of sodium hydroxide, 12.0 g of zinc oxide, 8.0 g of nickel sulfate, 10.0 ml of tetraethylenepentamine, and 22.7 g of complexing agent , A agent 2.5g, B agent 5.5g, and the balance is water; 9.1g of potassium sodium tartrate, 10.9g of trisodium citrate, and 2.7g of disodium edetate in the complexing agent; The agent is composed of benzylidene acetone according to the mass ratio: sodium benzoate: pyridine: cinnamic acid=1.3:0.55:0.4:0.6; the described B agent is composed of anisaldehyde according to the mass ratio: alcohol: sodium benzoate: o-chlorobenzaldehyde =3.5:0.8:1.3:1.3 composition.

[0042] The preparation steps of alkaline zinc-nickel alloy electroplating solution are as follows in the present embodiment:

[0043] (1) Accurately weigh the zinc oxide and sodium hydroxide in the formula, first add ...

Embodiment 2

[0048]In the alkaline zinc-nickel alloy electroplating solution in the present embodiment, every liter of electroplating solution comprises the following components: 100.0 g of sodium hydroxide, 10.0 g of zinc oxide, 6.0 g of nickel sulfate, 6.0 ml of tetraethylenepentamine, and 21.5 g of complexing agent , A agent 3.0g, B agent 7.0g, the balance is water; In the complexing agent, potassium sodium tartrate 10.8g, trisodium citrate 7.4g, edetate disodium 3.3g; The agent is composed of benzylidene acetone according to the mass ratio: sodium benzoate: pyridine: cinnamic acid=1.2:0.6:0.45:0.65; the described B agent is composed of anisaldehyde according to the mass ratio: alcohol: sodium benzoate: o-chlorobenzaldehyde =3.4:0.85:1.2:1.1 composition.

[0049] The preparation steps of the alkaline zinc-nickel alloy electroplating solution are the same as in Example 1 in this embodiment.

[0050] The application of the alkaline zinc-nickel alloy electroplating solution in the present...

Embodiment 3

[0052] In the alkaline zinc-nickel alloy electroplating solution in the present embodiment, every liter of electroplating solution comprises the following components: 120.0g of sodium hydroxide, 16.0g of zinc oxide, 12.0g of nickel sulfate, 15.0ml of tetraethylenepentamine, and 21.7g of complexing agent , A agent 3.5g, B agent 4.0g, the balance is water; In the complexing agent, potassium sodium tartrate 12.1g, trisodium citrate 5.7g, edetate disodium 3.9g; The agent is composed of benzylidene acetone according to the mass ratio: sodium benzoate: pyridine: cinnamic acid=1.1:0.65:0.35:0.55; the described B agent is composed of anisaldehyde according to the mass ratio: alcohol: sodium benzoate: o-chlorobenzaldehyde =3.6:0.75:1.1:1.2 composition.

[0053] The preparation steps of the alkaline zinc-nickel alloy electroplating solution are the same as in Example 1 in this embodiment.

[0054] The application of the alkaline zinc-nickel alloy electroplating solution in the present ...

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Abstract

The invention discloses an alkaline zinc-nickel alloy electroplating solution and its preparation method and application, belonging to the technical field of electroplating. Each liter of electroplating solution contains the following components: sodium hydroxide 100.0-150.0g, zinc oxide 10.0-16.0g, nickel sulfate 6.0-12.0g, tetraethylenepentamine 6.0-15.0ml, complexing agent 10.0-30.0g, A agent 2.5~3.5g, B agent 4.0~7.0g, the balance is water. The alkaline zinc-nickel alloy electroplating solution of the present invention has the characteristics of uniform metal distribution and stable alloy composition, and the nickel content of the coating is stable at 12-15% in the range of current density 2.5-5.0A / dm2; at the same time, the coating has good corrosion resistance And strong wear resistance, the neutral salt spray test shows that the red rust time of the coating is ≥ 1000h, and the thickness of the coating is ≥ 12μm, and the preparation method of the electroplating solution is simple, easy to operate, low cost, and suitable for large-scale production applications.

Description

technical field [0001] The invention specifically relates to an alkaline zinc-nickel alloy electroplating solution, and also relates to a preparation method and application of an alkaline zinc-nickel alloy electroplating solution, belonging to the technical field of electroplating. Background technique [0002] Zinc-nickel alloy coating is a new type of excellent protective coating, which is mainly used in aerospace, automobile industry and mechanical and electronic products. In the anticorrosion and protection of parts in the electrical field, the zinc-nickel alloy film layer is used as the final protective film layer, which is required to have excellent corrosion resistance, wear resistance and hardness. [0003] At present, zinc-nickel alloy electroplating technology has been put into practical application abroad, while the zinc-nickel alloy electroplating solution on the domestic production line mainly relies on foreign imports. Because the industrial field of the zinc-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D3/56
Inventor 易传贵史鸿威陈延辉王瑞刘永
Owner STATE GRID CORP OF CHINA