Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for modulating zinc-nickel alloy and nickel combined multi-layer membranous by electrochemical deposition component

A component modulation, zinc-nickel alloy technology, applied in the field of electrochemical deposition component modulation Zn-Ni/Ni or Ni/Zn-Ni multilayer film, can solve the problems of high cost, long preparation time, high equipment requirements, etc. Achieve smooth and bright coating, high current efficiency, and solve the effect of poor bonding force

Inactive Publication Date: 2011-04-06
BEIHANG UNIV
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vapor deposition method has high requirements on equipment, long preparation time and high cost, so most researchers choose electrochemical deposition method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for modulating zinc-nickel alloy and nickel combined multi-layer membranous by electrochemical deposition component
  • Method for modulating zinc-nickel alloy and nickel combined multi-layer membranous by electrochemical deposition component
  • Method for modulating zinc-nickel alloy and nickel combined multi-layer membranous by electrochemical deposition component

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] The multi-layer film preparation method of zinc-nickel alloy and nickel combination provided by the invention, the preparation process is as follows figure 1 As shown, the specific implementation steps are as follows:

[0032] The first step is to prepare alkaline cleaning solution, pickling solution and electroplating solution.

[0033] Alkaline lotion contains NaOH, Na 3 PO 4 12H 2 O, Na 2 CO 3 10H 2 O, Na 2 SiO 3 ·nH 2 Aqueous solution of O, which contains 60-80g of NaOH per liter of alkaline washing solution, NaOH 3 PO 4 12H 2 O 20~40g, Na 2 CO 3 10H 2 O20~40g, Na 2 SiO 3 ·nH2 O 20 ~ 40g, the rest is water.

[0034] The pickling solution uses HCl solution, and each liter of pickling solution contains 4-8 mL of HCl.

[0035] Alkaline Zn-Ni alloy electroplating solution contains ZnO, NiSO 4 , NaOH, complexing agent, additives and brightener aqueous solution, containing ZnO 10~30g per liter of plating solution, NiSO 4 5-13g, NaOH 100-140g, in addit...

Embodiment 1

[0061] Embodiment one: Electroplating Zn-Ni / Ni and Ni / Zn-Ni multilayer films on 30CrMnSiA steel substrate.

[0062] The first step is to prepare alkaline cleaning solution, pickling solution and electroplating solution.

[0063] Each liter of alkaline washing solution contains: NaOH 70g, NaOH 3 PO 4 12H 2 O 30g, Na 2 CO 3 10H 2 O 30g, Na 2 SiO 3 ·nH 2 O 30g. The rest is water.

[0064] Each liter of pickling solution contains 6mL of HCl.

[0065] Each liter of alkaline zinc-nickel alloy electroplating solution contains: ZnO 10g, NiSO 4 5g, NaOH 120g, complexing agent tetraethylenepentamine 3mL, triethanolamine 38mL, ammonia water 10mL, additive DE 1.5mL, CTAB 2g, brightener ZB 3mL, vanillin 0.2g, and the rest is water.

[0066] The plating solution for electroplating nickel contains per liter: 150g of nickel sulfate, 200g of sodium citrate, 10g of nickel chloride, 20ml of triethanolamine, 40g of magnesium sulfate, and the rest is water.

[0067] The second step...

Embodiment 2

[0087] Embodiment two: Electroplating Ni / Zn-Ni multilayer film on stainless steel substrate.

[0088] The first step is to prepare alkaline cleaning solution, pickling solution and electroplating solution.

[0089] The preparation of alkaline washing solution and pickling solution is the same as in Example 1.

[0090] Electroplating zinc-nickel alloy plating solution is ZnO, NiSO 4 , NaOH, ammonium citrate, tetraethylenepentamine, triethanolamine, EDTA, phytic acid, DE, thiourea, and each liter of alkaline zinc-nickel alloy plating solution contains: ZnO 20g, NiSO 4 10g, NaOH 100g, complexing agent ammonium citrate 15g, tetraethylenepentamine 20mL, triethanolamine 40mL, EDTA 15g, additive phytic acid 0.15mL, DE 9mL, brightener thiourea 1g, the rest is water.

[0091] Each liter of electroplating nickel plating solution contains: 100g of nickel sulfate, 75g of potassium pyrophosphate, 15g of citric acid, 50mL of ammonia water, and the rest is water.

[0092] The second st...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides a method for modulating a multilayer film consisting of Zn-Ni alloy and Ni by electro-chemically depositing compositions, comprising five steps as follows: preparing alkaline liquor, pickling liquor and electroplating solution, mechanical grinding and cleaning plating articles, alkaline washing, pickling and electroplating, wherein, the electroplating solution comprises alkaline electroplating solution with electroplated Zn-Ni alloy and neutral and alkaline electroplating solution with electroplated Ni; the electroplating solution of Ni consists essentially of a main salt and a complexing agent; the main salt is one or two compositions out of NiSO4 and NiCl2; and the complexing agent consists of two or more substances as follows: ammonium citrate, sodium citrate, citric acid, ammonia, sodium pyrophosphate, potassium pyrophosphate and triethanolamine. The Zn-Ni / Ni or Ni / Zn-Ni multilayer film electroplated by the method has smooth plating layer surface, better corrosion resistance and higher current efficiency and plating layer adhesion.

Description

technical field [0001] The invention belongs to the technical field of electroplating in material science, and specifically refers to a method for modulating Zn-Ni / Ni or Ni / Zn-Ni multilayer films by electrochemical deposition components. Background technique [0002] Composition modulation multilayer film is a kind of multilayer structure material, which is a new type of material with periodic changes in composition or structure formed by the alternate superposition of two metal or alloy thin film materials. In a multilayer film, a single thin layer is called a sublayer or a sublayer, and the sum of the thicknesses of two adjacent thin layers is called the modulation wavelength or period thickness (expressed by λ). Since the 1970s, there have been more and more research reports on the preparation and performance of component-modulated multilayer films, but it was not until the mid-1990s that scientists represented by Gabe began to study the preparation of components by elect...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C25D5/12C25D3/12C25D3/56
Inventor 刘建华陈珏伶柳木桐李松梅于美
Owner BEIHANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com