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Aluminum alloy sheet material having pre-coating layer

An aluminum alloy plate, pre-coating technology, applied in the field of aluminum alloy plate, can solve the problems of low efficiency, poor effect, trouble, etc., and achieve the effect of high thermal bonding strength

Inactive Publication Date: 2014-11-26
湖北塑金复合材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many adhesives for materials such as aluminum alloy and PET film, but since the surface of the aluminum alloy needs to be treated during bonding, and the bonding is subject to many conditions, for a certain scale of use, it is not only troublesome to apply the adhesive on site, And low efficiency, poor effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The present invention comprises an aluminum alloy plate and a precoat coated on one side of the aluminum alloy plate; the precoat is obtained by the following method: polyurethane hot melt adhesive (PUR glue) and ethyl acetate in a mass ratio of 5:1 Proportional mixing, stirring at 50-60 degrees Celsius for 1 hour to obtain glue. The glue is contacted with the glue roller, and then the glue is evenly distributed on the aluminum strip through the glue roller, and the thickness of the coated glue is controlled by a scraper. The aluminum strip is introduced into the oven through the transmission mechanism and baked at 100-120°C. After baking, the bellows is cooled. to normal temperature, and then the cylindrical product is harvested through the driving wheel, that is, a pre-coated aluminum alloy plate is obtained.

[0009] The aluminum strip is introduced into the oven through the transmission mechanism and baked at 100-120°C, which means that the aluminum strip evenl...

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PUM

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Abstract

The invention relates to an aluminum alloy sheet material having a pre-coating layer, which comprises the aluminum alloy sheet material and the pre-coating layer coated on the aluminum alloy sheet material; the method for preparing the pre-coating layer comprises the steps: mixing a polyurethane hot melt adhesive and ethyl acetate according to mass ratio of 5: 1; and stirring for 1 hour under 50-60 DEG C to obtain the glue. A glue roller is used for contacting the glue, the glue is uniformly distributed on an aluminum tape by the glue roller, and the aluminum tape is introduced into a roasting oven through a transmission mechanism for roasting under 100-120 DEG C and cooling to normal temperature to obtain the aluminum alloy sheet material having the pre-coating layer. According to the aluminum alloy sheet material having the pre-coating layer, after-tack of the pre-coating layer is not generated under normal temperature and is capable of being rolled for storage. The pre-coating is transparent, and apparent property such as color, brightness and deflection of a PET membrane substrate is not influenced. The pre-coating layer has nonpoisonous and tasteless performance, and yellowing is not generated under high temperature. The aluminum alloy sheet material has high heat bonding strength to the PET membrane and various aluminum alloy sheet materials. No harmful gas is generated after the pre-coating layer is heated.

Description

technical field [0001] The invention relates to a precoated aluminum alloy plate. Background technique [0002] Due to its light specific gravity and high strength, the raw material aluminum oxide is widely distributed on the earth, so it can be used instead of steel alloys and other materials in many places. [0003] For various needs, aluminum alloys are usually bonded together with other materials such as PET films. There are many adhesives for materials such as aluminum alloy and PET film, but since the surface of the aluminum alloy needs to be treated during bonding, and the bonding is subject to many conditions, for a certain scale of use, it is not only troublesome to apply the adhesive on site, Moreover, the efficiency is low and the effect is poor. Contents of the invention [0004] The problem to be solved by the present invention is to provide a pre-coated aluminum alloy plate, which does not need to be coated with adhesive on site, and is easy and fast...

Claims

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Application Information

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IPC IPC(8): B32B15/095B32B15/08B32B37/15B32B38/16
Inventor 吴文辉
Owner 湖北塑金复合材料有限责任公司