Zinc-nickel electroplating additive and preparation method thereof

An electroplating additive, zinc-nickel technology, applied in the field of zinc-nickel electroplating additives and its preparation, can solve the problems of low bonding force and poor corrosion resistance of zinc-nickel electroplating layer, and achieve bright and fine coating, good corrosion resistance, and suppress hydrogen evolution Effect

Inactive Publication Date: 2019-08-20
范文学
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a zinc-nickel electroplating additive and a preparation method thereof, starting with the additive of the zinc-nickel electroplating solution, and mainly solving the shortcomings of low binding force and poor corrosion resistance of the zinc-nickel electroplating layer

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] A zinc-nickel electroplating additive comprising the following raw materials by weight: 25 parts of epichlorohydrin, 20 parts of hexamethylenetetramine, 15 parts of mercaptobenzimidazole, 6 parts of saccharin sodium and 3 parts of vanillin, 4 parts by weight -2 parts of methylbenzaldehyde, 10 parts of sodium benzenesulfinate, 3 parts of sodium diethylhexyl sulfate, 15 parts of triethanolamine, 10 parts of sodium acetate, 300 parts of water.

[0024] A preparation method of zinc-nickel electroplating additives includes the following steps:

[0025] (1) Main brightener configuration: In the reactor, mix epichlorohydrin, hexamethylenetetramine, and mercaptobenzimidazole in parts by weight, add 35 times the total amount of water, and heat to 70°C , Compounded for 25min to get the main brightener,

[0026] (2) Secondary brightener configuration: mix saccharin sodium and vanillin according to the proportion by weight, add 20 times the total amount of water, stir and heat to 65°C, c...

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

No PUM Login to view more

Abstract

The invention discloses a zinc-nickel electroplating additive and a preparation method thereof. The zinc-nickel electroplating additive is prepared from raw materials by following weight part: brightener, enhancer, complexing agent, coordination agent, surfactant and the balance of water, wherein the brightener comprises epoxy chloropropane, hexamethylene tetramine, mercapto benzimidazole, saccharin sodium, vanillin and 4-methyl benzaldehyde. The zinc-nickel electroplating additive is adsorbed onto the surface of an electrode so as to play a part in inhibiting electric discharge of zinc coordination ions and nickel coordination ions, uses a reaction product of the epoxy chloropropane, the hexamethylene tetramine and the mercapto benzimidazole as main brightener, uses the 4-methyl benzaldehyde as auxiliary brightener, uses the vanillin as second class brightener and leveling agent, can obtain a bight and fine coating, and also can obtain a pinhole-free coating, and follow-up salt fog tests on the surface of the coating prove that the zinc-nickel electroplating additive has good adhesion strength to the zinc-nickel coating, and has good corrosion resistance.

Description

Technical field [0001] The invention relates to the technical field of zinc-nickel electroplating, in particular to a zinc-nickel electroplating additive and a preparation method thereof. Background technique [0002] Steel as an important raw material has been widely used in modern industrial production, but the corrosion of steel causes very serious losses to the society. According to reports, the corrosion loss of steel caused by the petroleum industry alone amounts to tens of billions of yuan each year. , Not only a huge economic loss, but also a huge waste of resources. [0003] The zinc-nickel alloy electroplating layer has excellent properties such as high corrosion resistance, weldability, and mechanical processing. At present, zinc-nickel alloy electrodeposition mainly has two major systems: alkaline and acid. Alkaline zinc-nickel alloy electroplating has many advantages: The current density has uniform composition, strong dispersion ability, and good deep plating ability...

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): C25D3/56
CPCC25D3/565
Inventor 范文学
Owner 范文学
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap