Zinc-nickel alloy plating liquid

A technology of zinc-nickel alloy and nickel-iron alloy, which is applied in the field of electroplating solution, can solve problems such as the unsatisfactory effect of alkaline zinc-nickel plating solution and the inability to meet high-standard electroplating requirements, and achieve good stability and good corrosion resistance. Effect

Inactive Publication Date: 2012-04-18
张家港舒马克电梯安装维修服务有限公司镀锌分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the effect of alkaline zinc-nickel electroplating solution is not very satisfactory and cannot meet the high-standard electroplating requirements

Method used

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  • Zinc-nickel alloy plating liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of zinc-nickel alloy electroplating solution, its material is composed as follows according to parts by weight:

[0021] Zinc oxide 10g / L

[0022] Nickel sulfate hexahydrate 15g / L

[0023] Sodium hydroxide 85g / L

[0024] Ethyleneimine 15mL / L

[0025] Triethanolamine 25mL / L

[0026] Urotropine 0.8g / L

[0027] Vanillin 0.1 g / L

[0028] Saccharin 2.8g / L

[0029] Sodium diethylhexyl sulfate 0.2 mL / L.

[0030] At 20~25℃, current density 2A / dm 2 , electroplating at a stirring rate of 700r / min for 1h. A commercially available B12 gasket was used as a sample. Plating process: Grinding→alkaline cleaning solution to remove oil→water washing→acid cleaning solution to remove rust→water washing→polishing→water washing→plating.

[0031] The area ratio of the cathode to the anode is 2:1, the test uses a discrete power supply, and the control I Zn : I Ni = 4:1.

[0032] The obtained silver-white coating is bright, smooth and dense, with a nickel content of 13% an...

Embodiment 2

[0034] A kind of zinc-nickel alloy electroplating solution, its material is composed as follows according to parts by weight:

[0035] Zinc oxide 12g / L

[0036] Nickel sulfate hexahydrate 14g / L

[0037] Potassium hydroxide 78g / L

[0038] Ethyleneimine 20mL / L

[0039] Triethanolamine 30mL / L

[0040] Herotropine 3g / L

[0041] Vanillin 0.5 g / L

[0042] Saccharin 5.0g / L

[0043] Sodium diethylhexyl sulfate 0.5 mL / L.

[0044] At 20~25℃, current density 3A / dm 2 , electroplating at a stirring rate of 700r / min for 1h. A commercially available B12 gasket was used as a sample. Plating process: Grinding→alkaline cleaning solution to remove oil→water washing→acid cleaning solution to remove rust→water washing→polishing→water washing→plating.

[0045] The area ratio of the cathode to the anode is 2:1, the test uses a discrete power supply, and the control I Zn : I Ni = 4:1.

[0046] The obtained silver-white coating is bright, smooth and dense, with a nickel content of 14% ...

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PUM

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Abstract

The invention discloses zinc-nickel alloy plating liquid, which comprises the following materials: 10 to 15 g/L of zinc oxide, 10 to 15 g/L of nickel sulfate hexahydrate, 75 to 100 g/L of caustic alkali, 15 to 25 ml/L of ethyliminum, 23 to 30 ml/L of triethanolamine, 0.5 to 3 g/L of urotropin, 0.05 to 0.5 g/L of vanillin, 1.0 to 5.0 g/L of saccharin and 0.1 to 0.6 mL/L of diethylhexyl sodium sulfate. After a zinc-nickel alloy is plated by the zinc-nickel alloy plating liquid, the obtained plating layer is silvery white, bright, smooth and compact, the nickel content is between 11 and 14, and the zinc-nickel alloy plating liquid has high corrosion resistance.

Description

Technical field [0001] The invention is the field of electroplating solution, which involves a zinc nickel alloy plating. Background technique [0002] In zinc -based alloy, zinc nickel alloy plating is a new type of excellent protective plating layer, suitable for harsh industrial atmosphere and harsh marine environment.Nickel 11 ~ 14%of zinc nickel alloys have good corrosion resistance. [0003] Zinc nickel alloy plating is mainly divided into two types: weak acidic system and alkaline zinc acid system.The weakly acidic system has the advantages of simple plating solution composition, high current efficiency, and fast deposition speed, but its dispersal ability is poor and has strong corrosiveness on plating.The alkaline zinc acid saline system has a good dispersion capacity. The composition and thickness of the coating in the range of current density are even uniform.The key to obtaining light plating in alkaline plating is to use appropriate additives.At present, the effect o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/56
Inventor 蒋惠良
Owner 张家港舒马克电梯安装维修服务有限公司镀锌分公司
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