Zinc-nickel-phosphorus electroplating liquid and preparation method and electroplating method thereof

An electroplating solution, zinc-nickel-phosphorus technology, applied in the field of electroplating, can solve the problems of lack of anti-wear performance and low hardness of zinc-nickel coating, and achieve the effects of strong wear resistance, easy preparation method and good stability

Active Publication Date: 2019-03-26
合鸿新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that the existing zinc-nickel coating has low hardness and no anti-wear performance, the present invention provide...

Method used

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  • Zinc-nickel-phosphorus electroplating liquid and preparation method and electroplating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Taking the preparation of 1 liter of zinc-nickel-phosphorus electroplating solution as an example, add 400 milliliters of deionized water to the first container, add 25 grams of potassium hydroxide and stir until dissolved, add 45 grams of zinc sulfate and stir until dissolved; add 300 ml of deionized water, add 20 grams of complexing agent and stir until dissolved, then add 24 grams of nickel sulfamate, add 6 grams of sodium phosphite and stir until dissolved; add the solution in the second container to the first container, and add While stirring, after adding all the additives, add 0.15 grams of additives to the first container, fill up the liquid level to the 1 liter scale with deionized water, and stir evenly to complete the preparation of the electroplating solution.

[0026] When using this electroplating solution, heat it to 28°C, use 316L stainless steel as the anode, and use the workpiece to be electroplated as the cathode, at a current density of 2A / dm 2 Under...

Embodiment 2

[0029] Taking the preparation of 1 liter of zinc-nickel-phosphorus electroplating solution as an example, add 400 milliliters of deionized water to the first container, add 30 grams of potassium hydroxide and stir until dissolved, add 50 grams of zinc sulfate and stir until dissolved; add 300 ml of deionized water, add 25 grams of complexing agent and stir until dissolved, then add 26 grams of nickel sulfamate, add 7 grams of sodium phosphite and stir until dissolved; add the solution in the second container to the first container, and add While stirring, after adding all the additives, add 0.2 grams of additives to the first container, fill the liquid level with deionized water to the mark of 1 liter, and stir evenly to complete the preparation of the electroplating solution.

[0030] When using this electroplating solution, heat it to 29°C, use 316L stainless steel as the anode, and use the workpiece to be electroplated as the cathode, at a current density of 2.5A / dm 2 Under...

Embodiment 3

[0033] Taking the preparation of 1 liter of zinc-nickel-phosphorus electroplating solution as an example, add 400 milliliters of deionized water to the first container, add 35 grams of potassium hydroxide and stir until dissolved, add 55 grams of zinc sulfate and stir until dissolved; add 300 ml of deionized water, add 30 grams of complexing agent and stir until dissolved, then add 28 grams of nickel sulfamate, add 8 grams of sodium phosphite and stir until dissolved; add the solution in the second container to the first container, and add While stirring, after adding all the additives, add 0.25 grams of additives to the first container, fill up the liquid level to the 1 liter scale with deionized water, stir evenly, and complete the preparation of the electroplating solution.

[0034] When using this electroplating solution, heat it to 30°C, use 316L stainless steel as the anode, and use the workpiece to be electroplated as the cathode, at a current density of 2.5A / dm 2 Under...

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Abstract

The invention relates to zinc-nickel-phosphorus electroplating liquid and a preparation method and electroplating method thereof. The technical problems that an existing zinc-nickel plated layer is low in hardness and does not have the abrasion resistance are solved. The zinc-nickel-phosphorus electroplating liquid contains the following components including, by concentration, 20-30 g/L of nickelaminosulfonate, 4-10 g/L of sodium phosphate, 40-60 g/L of zinc sulfate, 20-40 g/L of potassium hydroxide, 0.1-0.3 g/L of additive and 20-40 g/L of complexing agent, and deionized water serves as a solvent. Meanwhile the invention provides the preparation method and electroplating method of the zinc-nickel-phosphorus electroplating liquid. The zinc-nickel-phosphorus electroplating liquid and the preparation method and electroplating method thereof are widely applied to surface treatment of metal workpieces, and a plated layer formed through the method serves as an anodic protective plated layer, has excellent corrosion resistance and high hardness and achieves the double effects of corrosion resistance and abrasion resistance.

Description

technical field [0001] The invention relates to the technical field of electroplating, in particular to a zinc-nickel-phosphorus electroplating solution, a preparation method thereof and an electroplating method. Background technique [0002] As a traditional anti-corrosion process, galvanizing is widely used in various fields. Compared with other metals, zinc is a relatively cheap and easy-to-plate metal. It is a low-value anti-corrosion coating and is widely used to protect steel. Parts, especially to prevent atmospheric corrosion, the galvanized layer is used as an anodic protective coating, which has a high safety factor. [0003] With the continuous improvement of people's quality requirements, the galvanized layer can no longer meet the performance indicators in some fields. Like the current automobile industry, the coating on most brand cars currently uses a new type of zinc-nickel alloy, which has excellent properties. Anti-corrosion performance, the protection perf...

Claims

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Application Information

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IPC IPC(8): C25D3/56
CPCC25D3/565
Inventor 赵汝山闫友军马庆超马耀伟
Owner 合鸿新材科技有限公司
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