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Zinc-nickel alloy nano multilayer film

A nano-multi-layer and multi-layer film technology, which is applied in the field of surface treatment of steel parts and metal materials, can solve the problems of multi-layer film damage, achieve high compactness, high comprehensive performance, and improve production safety.

Inactive Publication Date: 2009-10-07
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005]Because the deposition of zinc-nickel alloy belongs to abnormal co-deposition, the traditional view is that when the nickel content in the zinc-nickel alloy coating reaches 13%, the coating has the best corrosion resistance , so the main problem solved by conventional zinc-nickel alloy additives is to try to control the nickel content in the coating to around 13% in the abnormally co-deposited zinc-nickel alloy electrolyte. is harmful

Method used

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  • Zinc-nickel alloy nano multilayer film

Examples

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Comparison scheme
Effect test

Embodiment 1

[0016] Embodiment 1: the steel plate that surface is coated with zinc-nickel alloy nano multilayer film, its coating is zinc nickel alloy nano multilayer film, the nickel content of low nickel layer is 14.07%, the nickel content of high nickel layer is 14.07% by weight in the coating The content is 77.35%, and the thickness of the coating is 8.0×10 -3 mm.

[0017] The specific steps are: before the steel plate is electroplated, the parts are polished and washed with water, degreased, then washed with water, rust removed, put into the electroplating bath after washing, and the electrolyte is stirred or left standing, After electrolysis, the parts are taken out from the electrolytic solution, washed with water, and dried. The pH value of the plating solution is 3.5, the power supply mode of plating is pulse output power supply, the temperature is room temperature, and the time is 25 minutes.

[0018] The electrolyte solution contains Ni and Zn salts as the main salt, and NH as...

Embodiment 2

[0019] Embodiment 2: the nut that the surface is coated with zinc-nickel alloy nano-multilayer film, its coating is zinc-nickel alloy nano-multilayer film, the nickel content of low nickel layer is 14.20% by weight in the coating, the nickel of high nickel layer The content is 76.8%, and the thickness of the coating is 7.5×10 -3 mm.

[0020] The surface electroplating method of the nut comprises that the nut is polished and washed with water and degreased before the electroplating, then washed with water, derusted, put into the electroplating solution of the electroplating tank after being washed with water, and the electrolytic solution is stirred Or let it stand still, and after electrolysis, take out the parts from the electrolyte, wash them with water, and dry them. The pH value of the plating solution is 3.5, the power supply mode of plating is pulse output power supply, the temperature is room temperature, and the time is 20 minutes.

[0021] The electrolyte solution c...

Embodiment 3

[0022]Embodiment 3: the pump chamber lining with zinc-nickel alloy nano-multilayer film on the surface, the coating is zinc-nickel alloy nano-multilayer film, and the nickel content of the low-nickel layer in the coating is 13.9% by weight, and the high-nickel layer is 13.9% by weight. The nickel content is 77.5%, and the thickness of the coating is 8.5×10 -3 mm.

[0023] The surface electroplating method for the lining of the pump chamber comprises the steps of polishing, washing, and degreasing the parts and components of the pump chamber lining before electroplating, then washing with water, removing rust, and then placing it into the electroplating solution of the electroplating tank after washing with water, and adding The electrolyte solution is stirred or left to stand, and after electrolysis, the parts are taken out from the electrolyte solution, washed with water, and dried. The pH value of the plating solution is 3.5, the power supply mode for plating is pulse outpu...

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Abstract

The present invention discloses a nano multilayer film with zinc-nickel alloy plated on the surface, belong to surface treatment technique of components and metallic materials field. The plating layer is alternately overlayed by low nickel layer and high nickel layer, wherein nickel content of the low nickel layer is about 14%, and nickel content of the high nickel layer is about 78%, the modulation wavelength is about 240 nm. The invention is provided with advantages of higher corrosion resistance, rigidity, compactness, wearing resistance, high-temperature resistance, easy solderability and pretty appearance.

Description

technical field [0001] The invention relates to a zinc-nickel alloy nano-multilayer film coating on the surface, which belongs to the technical field of surface treatment of iron and steel parts and metal materials. Background technique [0002] Corrosion and anti-corrosion are related to economic development and people's life safety. Surface engineering technology is the most economical and effective means and method to solve the corrosion and protection of mechanical parts and materials. With the rapid development of modern industry and science and technology, the performance requirements for mechanical parts and material surfaces are getting higher and higher, and surface treatment technology has also developed rapidly. Surface engineering technology can use chemical, physical or electrochemical methods to treat the surface of parts or materials to form various protective layers on the surface and improve the service life of parts or materials. Alloy composite surface de...

Claims

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Application Information

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IPC IPC(8): C25D5/10C25D5/18C25D3/56
Inventor 张英杰闫宇星董鹏宋凡子章江洪
Owner KUNMING UNIV OF SCI & TECH
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