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

Sealing agent for anodic oxidation film of aluminum profiles and low-nickel medium-temperature sealing method

An anodic oxide film and sealing agent technology, applied in electrolytic coatings, surface reaction electrolytic coatings, coatings, etc., to save costs, reduce environmental pollution problems, and reduce sealing costs.

Active Publication Date: 2017-08-25
南京鸿发有色金属制造股份有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a fast sealing agent for the anodic oxidation film of aluminum profiles and a low-nickel medium-temperature sealing method, which can reduce the concentration of nickel discharge by half, and can be widely used in silver-white, electrolytic coloring films and The sealing of the dyed anodic oxide film reduces the cost of sealing holes, thereby reducing the environmental pollution problems existing in the sealing process under the premise of ensuring normal production

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 1

[0029] 1. Blocking liquid composition: Ni 2+ 0.6g / L, 2-hydroxytriethylamine 0.6g / L, cerium acetate 0.06g / L, H 2 o 2 0.005g / L, succinic acid 0.05 g / L, Tween-80 (polyoxyethylene (20EO) sorbitan monooleate) 0.03g / L, PEG400 0.02g / L, adjust the pH to 6.5 with acetic acid .

[0030] 2. Process conditions: temperature 50°C, impregnation for 20 minutes.

[0031] 3. Wash twice.

[0032] 4. Dry in air.

[0033] 5. Inspection, there is no water stain on the test surface, and there is no powder cream on the surface with wet test paper. After 48 hours, the ISO3210 standard weight loss is 25.0mg / dm 2 , Exhaust nickel concentration 0.3g / L.

Embodiment 2

[0035] 1. Blocking liquid composition: Ni 2+ 0.3g / L, 2-hydroxytriethylamine 0.2g / L, cerium acetate 0.03g / L, Tween-80 (polyoxyethylene (20EO) sorbitan monooleate) 0.02g / L, PEG400 0.0 g / L, adjust the pH to 6.2 with acetic acid.

[0036] 2. Process conditions: temperature 60°C, impregnation for 20 minutes.

[0037] 3. Wash twice.

[0038] 4. Dry in air.

[0039] 5. Inspection, there is no water stain on the test surface, and there is no powder cream on the surface with wet test paper. After 48 hours, the ISO3210 standard weight loss is 28.0mg / dm 2 , Exhaust nickel concentration 0.3g / L.

Embodiment 3

[0041] 1. Blocking liquid composition: Ni 2+ 0.5g / L, 2-hydroxytriethylamine 0.4g / L, cerium acetate 0.04g / L, H 2 o 20.004g / L, Teen-80 (polyoxyethylene (20EO) sorbitan monooleate) 0.03g / L, PEG400 0.02g / L, adjust the pH to 5.8 with acetic acid.

[0042] 2. Process conditions: temperature 40°C, impregnation for 20 minutes.

[0043] 3. Wash twice.

[0044] 4. Dry in air.

[0045] 5. Inspection, there is no water stain on the test surface, and there is no powder cream on the surface with wet test paper. After 48 hours, the ISO3210 standard weight loss is 25.5mg / dm 2 , qualified, nickel discharge concentration 0.5g / L.

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 present invention provides a fast sealing agent for the anodized film of an aluminum profile, the sealing agent includes a solid sealing agent and a liquid additive; the solid sealing agent is a nickel salt, including nickel sulfate, nickel nitrate, nickel acetate or milk nickel ion A combination of one or more; liquid additives include the following components in weight percentage: non-nickel metal salt 1-2%, hydration accelerator 5-10%, complexing agent 1-2%, passivator 0.1-0.5 %, 0.5-1% of ash suppressant, and the balance is water. It can reduce the concentration of nickel discharge by more than half, and can be widely used in the sealing of silvery white, electrolytic coloring film and dyed anodic oxidation film, completely suppress the problem of sealing dust, and reduce the cost of sealing to a certain extent, so as to ensure normal Under the premise of production, the environmental pollution problem existing in the sealing process is reduced.

Description

technical field [0001] The invention relates to the technical field of anodic oxidation post-treatment of aluminum profiles, in particular to a low-nickel medium-temperature hole sealing method for anodic oxidation films of aluminum profiles. Background technique [0002] In order to improve the surface properties of aluminum profiles, the hot-extruded aluminum material is placed in a sulfuric acid electrolyte for anode direct current oxidation, so that a layer of porous nano-structured film is formed on the surface. The advantage of this porous film is that it can be adsorbed or electrified. Coloring has good surface protection and decoration properties, but the open membrane pores have strong adsorption properties, which will accelerate corrosion in a corrosive environment and reduce its anti-corrosion performance. [0003] In order to solve the corrosion resistance of the porous film, chemical methods are used to block the nanopores of the oxide film or make it inert. Thi...

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): C25D11/24
Inventor 陈祥建
Owner 南京鸿发有色金属制造股份有限公司
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