Unlock instant, AI-driven research and patent intelligence for your innovation.

Aluminum alloy anodic oxidation film hole sealing agent, preparation method and sealing method

An anodic oxide film and sealing agent technology, applied in the field of aluminum alloys, can solve the problems of reduced service life of aluminum devices, harm to human health, and difficulty in meeting quality requirements, and achieve the effect of reducing color fading and improving the quality of sealing holes.

Active Publication Date: 2020-03-03
BYD CO LTD
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface treatment of aluminum alloy is mainly anodized, but the anodized film layer has a porous structure and has strong chemical activity. If the holes are not sealed or the sealing quality is poor, the pollutants in the environment will be absorbed by the micropores and deeply Corrosion will eventually lead to a reduction in the service life of aluminum devices, that is to say, the sealing quality of the aluminum alloy anodized film directly determines the corrosion resistance of the aluminum alloy, and the aluminum alloy generally needs dyeing treatment after anodic oxidation to obtain a good appearance effect If the quality of sealing holes cannot be guaranteed, it will also seriously affect the appearance and shape of the aluminum alloy.
At present, Ni is usually used at home and abroad 2+ and F - Ni-F sealing agent is the basic component, but the Ni-F sealing system consumes too much nickel and fluorine and is harmful to human health; the existing nickel-free sealing agent is difficult to meet the quality requirements of production. cannot be applied on a large scale

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
  • Aluminum alloy anodic oxidation film hole sealing agent, preparation method and sealing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Prepare aluminum alloy anodized film sealing agent according to the component listed in table 1;

[0026] Preparation of aluminum alloy anodized film sealing agent: Sodium molybdate, sodium tripolyphosphate, potassium iodide, lanthanum chloride, silane coupling agent and sodium dodecylbenzenesulfonate are dissolved in water to form an aluminum alloy anodized film for sealing Agent A1. The content of described sodium molybdate is 2g / L, and the content of sodium tripolyphosphate is 0.5g / L, and the content of potassium iodide is 5g / L, and the content of lanthanum chloride is 0.04g / L, and gamma-(2,3- The content of glycidyloxy) propyltrimethoxysilane is 0.5g / L, and the content of sodium dodecylbenzenesulfonate is 0.05g / L;

[0027] Aluminum alloy aluminum alloy anodized film sealing: put the aluminum alloy that has been anodized and dyed into the aluminum alloy anodized film sealing agent prepared in Example 1 for sealing treatment, and the temperature of the sealing treatm...

Embodiment 2

[0029] Prepare aluminum alloy anodized film sealing agent according to the component listed in table 1;

[0030] Preparation of aluminum alloy anodized film sealing agent: Sodium molybdate, sodium tripolyphosphate, potassium iodide, lanthanum chloride, silane coupling agent and sodium dodecylbenzenesulfonate are dissolved in water to form an aluminum alloy anodized film for sealing Agent A2. The content of described sodium molybdate is 3g / L, and the content of sodium tripolyphosphate is 0.4g / L, and the content of potassium iodide is 8g / L, and the content of lanthanum chloride is 0.2g / L, and gamma-(2,3- The content of glycidyloxy) propyltrimethoxysilane is 0.2g / L, and the content of sodium dodecylbenzenesulfonate is 0.06g / L;

[0031] The aluminum alloy was sealed according to the method of Example 1 to obtain the sealed aluminum alloy part B2.

Embodiment 3

[0033] Prepare aluminum alloy anodized film sealing agent according to the component listed in table 1;

[0034] Preparation of aluminum alloy anodized film sealing agent: Sodium molybdate, sodium tripolyphosphate, potassium iodide, lanthanum chloride, silane coupling agent and sodium dodecylbenzenesulfonate are dissolved in water to form an aluminum alloy anodized film for sealing Agent A3. The content of described sodium molybdate is 1g / L, and the content of sodium tripolyphosphate is 0.6g / L, and the content of potassium iodide is 6g / L, and the content of lanthanum chloride is 0.5g / L, and gamma-(2,3- The content of glycidyloxy) propyltrimethoxysilane is 0.8g / L, and the content of sodium dodecylbenzenesulfonate is 0.03g / L;

[0035] The aluminum alloy was sealed according to the method of Example 1 to obtain the sealed aluminum alloy part B3.

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 provides an aluminum alloy anodic oxidation film hole sealing agent, a preparation method and a sealing method. The aluminum alloy anodic oxide film hole sealing agent comprises a molybdate, a phosphate, an iodine compound, a lanthanum compound, a silane coupling agent and water. Through cooperative use of the molybdate, the phosphate, the iodine compound, the lanthanum compound andthe silane coupling agent, the color loss of dye after dyeing treatment of an aluminum alloy anodic oxidation film can be effectively prevented or reduced, and the hole sealing quality of the aluminumalloy anodic oxidation film and the corrosion resistance of a product are improved.

Description

technical field [0001] The invention relates to the technical field of aluminum alloys, in particular to an aluminum alloy anodized film sealing agent, a preparation method and a sealing method. Background technique [0002] Aluminum alloys have the advantages of light weight, strong corrosion resistance, and good thermal and electrical conductivity, and are widely used in aviation, aerospace, automobiles, machinery manufacturing, and civil industries. The surface treatment of aluminum alloy is mainly anodized, but the anodized film layer has a porous structure and has strong chemical activity. If the holes are not sealed or the sealing quality is poor, the pollutants in the environment will be absorbed by the micropores and deeply Corrosion will eventually lead to a reduction in the service life of aluminum devices, that is to say, the sealing quality of the aluminum alloy anodized film directly determines the corrosion resistance of the aluminum alloy, and the aluminum all...

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
IPC IPC(8): C25D11/24
CPCC25D11/246
Inventor 韦家亮
Owner BYD CO LTD