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

Metal electrolytic ceramic coating method, electrolytic solution for metal electrolytic ceramic coating, and metal material

A metal material, ceramic coating technology, used in electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., can solve the problem of difficult to form a dense hard anodic oxide film, and achieve excellent sliding properties, high hardness, and low aggressiveness. Effect

Inactive Publication Date: 2011-11-30
NIHON PARKERIZING
View PDF11 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there is a problem that it is difficult to form a dense hard anodized film on die-casting alloys for aluminum

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
  • Metal electrolytic ceramic coating method, electrolytic solution for metal electrolytic ceramic coating, and metal material
  • Metal electrolytic ceramic coating method, electrolytic solution for metal electrolytic ceramic coating, and metal material
  • Metal electrolytic ceramic coating method, electrolytic solution for metal electrolytic ceramic coating, and metal material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0238] The electrolytic solution was prepared as follows: For water, use water-soluble ammonium zirconium carbonate containing 0.009 mol / L (=X) in zirconium conversion concentration, containing 0.0015 mol / L (=Y) of citrate ion, using potassium carbonate, and Ammonium carbonates combine to contain a carbonate ion amount of 0.028 mol / L (=Z). The pH of the electrolytic solution was adjusted to 11.0 by using sodium hydroxide, sodium citrate, and citric acid. The electrolytic solution thus obtained had a conductivity of 1.7 S / m at 20° C., and Y / X and Z / X were 0.17 and 3.1, respectively.

[0239] Control and use the electrolyte at 20°C, using a surface area of ​​1dm 2 The plate of aluminum forging material (stretched material) (JIS1050 material) is used as the working electrode, and the stainless steel plate is used as the counter electrode, and the bipolar electrolysis method is used for 20 minutes to form a ceramic film on the surface of the aluminum plate. When the surface of t...

Embodiment 2

[0242] An electrolytic solution was prepared as follows: For water, water-soluble potassium zirconium carbonate was used, containing 0.40 mol / L (=X) in terms of zirconium conversion concentration, containing 0.0080 mol / L (=Y) of oxalate ion, using potassium carbonate, and The carbonic acid of potassium zirconium carbonate combined contains 1.10 mol / L (=Z) of carbonate ion amount, and contains 0.008 mol / L of pyrophosphate ion in phosphorus conversion concentration. The pH of the electrolytic solution was adjusted to 10.0 by using ammonia water, oxalic acid, sodium oxalate, pyrophosphoric acid, and sodium pyrophosphate. The electrolytic solution thus obtained had a conductivity at 40° C. of 7.1 S / m, and Y / X and Z / X were 0.02 and 2.8, respectively.

[0243] Control at 40°C and use this electrolyte, using a surface area of ​​1dm 2 A plate of aluminum forging material (JIS4043 material) was used as the working electrode, a stainless steel plate was used as the counter electrode, a...

Embodiment 3

[0246] An electrolytic solution was prepared as follows: For water, water-soluble potassium zirconium carbonate was used, containing 0.0063 mol / L (=X) in terms of zirconium conversion concentration, containing 0.15 mol / L (=Y) of tartrate ion, using potassium carbonate, and The carbonic acid of potassium zirconium carbonate combined contains 0.113 mol / L (=Z) of carbonate ion amount, and contains 0.1 mol / L of pyrophosphate ion in phosphorus conversion concentration. The pH of the electrolytic solution was adjusted to 9.0 by using potassium hydroxide, potassium sodium tartrate, tartaric acid, pyrophosphoric acid, and sodium pyrophosphate. The electrolytic solution thus obtained had a conductivity of 1.8 S / m at 4° C., and Y / X and Z / X were 23.8 and 17.9, respectively.

[0247] Control and use the electrolyte at 4°C, using a surface area of ​​1dm 2 The die-casting aluminum alloy (JISADC6 material) plate was used as the working electrode, and the stainless steel plate was used as th...

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
composition ratioaaaaaaaaaa
composition ratioaaaaaaaaaa
electrical conductivityaaaaaaaaaa
Login to View More

Abstract

The electrolysis solution for electrolytic ceramic coating includes water, a water-soluble zirconium compound, a complexing agent, carbonate ion, and at least one member selected from the group consisting of an alkali metal ion, ammonium ion and an organic alkali. Te zirconium compound is included at a concentration (X) in terms of zirconium of 0.0001 to 1 mol / L, the complexing agent is included at a concentration (Y) of 0.0001 to 0.3 mol / L, the carbonate ion is included at a concentration (Z) of 0.0002 to 4 mol / L, a ratio of the concentration (Y) of the complexing agent to the concentration (X) in terms of zirconium (Y / X) is at least 0.01, a ratio of the concentration (Z) of the carbonate ion to the concentration (X) in terms of zirconium (Z / X) is at least 2.5, and the electrolysis solution has an electrical conductivity of 0.2 to 20 S / m.

Description

technical field [0001] The present invention relates to a method for forming a ceramic film on the surface of a metal by electrolytic treatment, and an electrolytic solution for coating metal electrolytic ceramics suitable for the method. In addition, the present invention also relates to a metal material having a ceramic coating. Background technique [0002] When a sliding member is made of light metal such as aluminum alloy, a ceramic film is usually formed on the sliding part by anodizing, plating, vapor phase growth, or the like in order to impart wear resistance. Among them, the anodic oxidation treatment of forming a wear-resistant film on a valve metal represented by aluminum has a small environmental load due to the high coatability of the film or the absence of chromium, nickel, etc. Excellent, so it is widely used. [0003] Among them, an anodized coating excellent in wear resistance is called a hard anodized coating. As the forming method thereof, generally, a...

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 Applications(China)
IPC IPC(8): C25D11/06C25D11/04C25D11/26C25D11/30
CPCC25D11/30C25D11/06C25D11/26C25D11/12C25D11/024C25D11/026C25D11/04
Inventor 须田新小西知义
Owner NIHON PARKERIZING
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