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Alkaline zinc-nickel alloy electroplating solution as well as preparation method and application thereof

A zinc-nickel alloy and electroplating solution technology, applied in the field of electroplating, can solve the problems such as the inability to apply the wear resistance requirements of high-voltage electrical shaft parts, the difficulty in meeting the requirements of the comprehensive performance of the coating, and the lack of the hardness performance parameters of the coating, and achieve high electroplating efficiency. , the effect of low cost and good corrosion resistance

Active Publication Date: 2014-10-29
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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  • Alkaline zinc-nickel alloy electroplating solution as well as preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

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

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

[0043] (1) Accurately weigh the formula amount of zinc oxide and sodium hydroxide, first add zinc oxide to 100ml of distilled water to make a paste, then add sodium hy...

Embodiment 2

[0048]The alkaline zinc-nickel alloy electroplating solution in this embodiment contains the following components per liter: sodium hydroxide 100.0g, zinc oxide 10.0g, nickel sulfate 6.0g, tetraethylenepentamine 6.0ml, complexing agent 21.5g , A agent 3.0g, B agent 7.0g, the balance is water; in the described complexing agent, potassium sodium tartrate 10.8g, trisodium citrate 7.4g, EDTA disodium 3.3g; Agent is composed of benzalkonium acetone according to mass ratio: sodium benzoate: pyridine: cinnamic acid=1.2:0.6:0.45:0.65; Described agent B is composed of anisaldehyde according to 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 in this example are the same as those in Example 1.

[0050] The application of the alkaline zinc-nickel alloy electroplating solution in the present embodiment, the specific steps are as follows: add the above-mentione...

Embodiment 3

[0052] The alkaline zinc-nickel alloy electroplating solution in this embodiment contains the following components per liter: sodium hydroxide 120.0g, zinc oxide 16.0g, nickel sulfate 12.0g, tetraethylenepentamine 15.0ml, complexing agent 21.7g , A agent 3.5g, B agent 4.0g, the balance is water; In the described complexing agent, potassium sodium tartrate 12.1g, trisodium citrate 5.7g, EDTA disodium 3.9g; The agent is composed of benzylidene acetone according to mass ratio: sodium benzoate: pyridine: cinnamic acid=1.1:0.65:0.35:0.55; Described agent B is composed of anisaldehyde according to 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 in this example are the same as those in Example 1.

[0054] The application of the alkaline zinc-nickel alloy electroplating solution in the present embodiment, the specific steps are as follows: add the above-m...

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Abstract

The invention discloses an alkaline zinc-nickel alloy electroplating solution as welll as a preparation method and application thereof and belongs to the technical field of electroplating. Per liter of the electroplating solution comprises the following components: 100.0-150.0g of sodium hydroxide, 10.0-16.0g of zinc oxide, 6.0-12.0g of nickel sulfate, 6.0-15.0ml of tetraethylenepentamine, 10.0-30.0g of complexing agent, 2.5-3.5g of agent A, 4.0-7.0g of agent B and the balance of water. The alkaline zinc-nickel alloy electroplating solution disclosed by the invention has the characteristics of uniform metal distribution and stable alloy composition, and can be used for stabilizing the nickel content of a plating layer to be 12-15% in a current density range of 2.5-5.0A / dm<2>; meanwhile, the plating layer has good corrosion resistance and relatively strong wear resistance; a neutral salt spray test shows that the red rust generation time of the plating layer is more than or equal to 1000 hours, and the thickness of the plating layer is more than or equal to 12 microns; moreover, the preparation method of the electroplating solution is simple, easy to operate and low in cost, and is suitable for large-scale production and application.

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, mainly used in aerospace, automotive industry and mechatronics products. In the surface anticorrosion and protection of electrical components, the zinc-nickel alloy film is the final protective film, which is required to have excellent corrosion resistance, wear resistance and hardness. [0003] At present, the zinc-nickel alloy electroplating technology has been put into practical application abroad, while the zinc-nickel alloy electroplating solution in domestic production lines mainly relies on foreign imports. Since the industrial field of zinc-nickel alloy film has been expanded in recent y...

Claims

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Application Information

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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