Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Protective adhesive and preparation method thereof, and aluminum alloy workpiece surface treatment process

A technology of protective glue and aluminum alloy, which is applied in the direction of surface reaction electrolytic coating, adhesive, adhesive additive, etc., can solve the problems of secondary pollution of micro-arc oxidation film, unsuitable local protection, and difficulty in tooling processing, etc.

Inactive Publication Date: 2020-10-23
洛阳特种材料研究院
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The tooling protection method is to prepare the aluminum alloy tooling of the same material, which is closely connected with the part to be protected, so that the part to be protected does not have direct contact with the electrolyte, and there is no micro-arc oxidation film layer growth, so as to achieve the purpose of local protection. This method is for regular The protection of the parts has a good effect, but for parts with complex shapes and irregular shapes of the protected parts, it is difficult to process the tooling, and it is not suitable for local protection; the resin paint protection method is to use epoxy resin to spray or spray on the parts to be protected. Brush a layer of resin paint, and after the micro-arc oxidation treatment is completed, remove the protective glue with an organic solvent such as a paint remover, which also achieves the purpose of partial protection. The secondary pollution of the arc oxidation film has a greater impact on the micro-arc oxidation process with post-treatment

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

preparation example Construction

[0028] A preparation method of protective glue, its preparation method is: first weigh each component according to the mass percentage of claim 1, then add silicone rubber, acrylate, epoxy resin, benzoyl peroxide, p- Hydroquinone and silane coupling agent are added while stirring until they are evenly stirred to obtain a protective glue.

[0029] A surface treatment process for an aluminum alloy workpiece, mainly comprising the following steps:

[0030] (1) Pretreatment: Use an alkaline degreasing agent to degrease the surface of the aluminum alloy workpiece, then clean it with water, and dry it with compressed air;

[0031] (2) Preparation of protective glue: Weigh 20%~40% of silicone rubber, 5~30% of acrylate, 30%~50% of epoxy resin, and 5~10% of benzoyl peroxide according to the mass percentage , 3~5% hydroquinone and 3~5% silane coupling agent, and then add the above components into the container in turn, and stir while adding until evenly stirred to obtain the protective...

Embodiment 1

[0037] A protective glue, the protective glue includes the following components in mass percentage: 20% silicone rubber, 20% acrylate, 45% epoxy resin, 7% benzoyl peroxide, 3% hydroquinone, silane di Joint agent 5%.

[0038] A surface treatment process for an aluminum alloy workpiece, mainly comprising the following steps:

[0039] (1) Pretreatment: At room temperature, use an alkaline degreaser to degrease the surface of the aluminum alloy workpiece, then clean it with water, and dry it with compressed air;

[0040] (2) Preparation of protective glue: Weigh 20% of silicone rubber, 20% of acrylate, 45% of epoxy resin, 7% of benzoyl peroxide, 3% of hydroquinone and 5% % silane coupling agent, then add the above-mentioned components into the container in turn, and stir while adding until the stirring is even, that is, the protective glue is obtained;

[0041] (3) Protection of the non-micro-arc oxidation area: first use paper tape to enclose the area into a closed area along t...

Embodiment 2

[0046] A protective glue, the protective glue includes the following components by mass percentage: 30% silicone rubber, 20% acrylate, 35% epoxy resin, 6% benzoyl peroxide, 4% hydroquinone, silane di Joint agent 5%.

[0047] A surface treatment process for an aluminum alloy workpiece, mainly comprising the following steps:

[0048] (1) Pretreatment: At room temperature, use an alkaline degreaser to degrease the surface of the aluminum alloy workpiece, then clean it with water, and dry it with compressed air;

[0049] (2) Preparation of protective glue: Weigh 30% of silicone rubber, 20% of acrylate, 35% of epoxy resin, 6% of benzoyl peroxide, 4% of hydroquinone and 5% % silane coupling agent, then add the above-mentioned components into the container in turn, and stir while adding until the stirring is even, that is, the protective glue is obtained;

[0050] (3) Protection of the non-micro-arc oxidation area: first use paper tape to enclose the area into a closed area along t...

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 protective adhesive and a preparation method thereof, and an aluminum alloy workpiece surface treatment process. The protective adhesive comprises the following components inpercentage by mass: 20%-40% of silicone rubber, 5%-30% of acrylate, 30%-50% of epoxy resin, 5%-10% of benzoyl peroxide, 3%-5% of hydroquinone and 3%-5% of a silane coupling agent. The protective adhesive can be matched with micro-arc oxidation to perform surface treatment on an aluminum alloy workpiece, the workpiece is pretreated, the protective adhesive is prepared, the protective adhesive is brushed to a non-micro-arc oxidation area, micro-arc oxidation treatment is carried out on a to-be-micro-arc oxidation area, and finally post-treatment is carried out. The protective adhesive can be tightly bonded with protected metal, an effective solution shielding layer is formed, micro-arc oxidation resistance and micro-arc local spark discharge performance is achieved, the effects that a protected part is free of a film layer and the protective adhesive has the effect of quick stripping are achieved, a complex part and a negative shape of the aluminum alloy workpiece can be locally protected, and the period of surface treatment of the aluminum alloy workpiece is greatly shortened.

Description

technical field [0001] The invention relates to the technical field of protective glue and surface treatment of aluminum alloy workpieces, in particular to a protective glue and a preparation method thereof, and a surface treatment process of aluminum alloy workpieces. Background technique [0002] Aluminum alloy has the advantages of low density, high specific strength, easy processing and forming, and good electrical and thermal conductivity. It is widely used in aerospace, automobiles, ships, construction, electrical and electronics, etc. However, due to the low strength of the aluminum alloy surface, poor corrosion resistance, hardness and wear resistance, it often cannot meet some design requirements. Especially in some special environments, such as acidic or alkaline atmosphere, containing Cl - atmosphere, etc., aluminum alloys are prone to corrosion. This severely restricts the application of aluminum alloys. [0003] When the aluminum alloy is naturally placed in ...

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): C09J4/02C09J4/06C09J11/06C25D11/06C25D11/18
CPCC09J4/06C09J11/06C25D11/022C25D11/026C25D11/06C25D11/18
Inventor 刘晓鹤董帅余向飞董杰
Owner 洛阳特种材料研究院
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
Eureka Blog
Learn More
PatSnap group products