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Color-varying and color-coated aluminum strip and production technology thereof

A production process and aluminum plate technology, applied in the field of color-changing aluminum strip and its production process, can solve the problems of poor color consistency between the central area and the surrounding area, environmental pollution, low efficiency, etc., achieve high production process efficiency and reduce environmental pollution , Good effect of color consistency

Pending Publication Date: 2017-12-12
滨州永光工贸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of degreasing agent has low activity and is difficult to react at room temperature. It needs to be heated to 60-80°C to achieve the degreasing effect; at the same time, the concentration of active ingredients in the degreasing agent is low, and it is easy to generate waste steam and liquid, causing environmental pollution.
[0005] The passivation step is usually treated with a chromate passivation agent, and water is used for cleaning during the passivation process, resulting in chromium-containing wastewater, which is also easy to cause environmental pollution
[0006] Therefore, the existing production process of color-changing aluminum strips is easy to produce waste steam and waste liquid in the pretreatment process, causing environmental pollution, and the pretreatment steps are cumbersome and complicated, and the efficiency is low, so it is difficult to adapt to high-speed production
[0007] On the other hand, the thickness uniformity of the color-changing coated aluminum strip obtained by the existing production process is not good, resulting in poor color consistency between the central area and the surrounding area; at the same time, the hardness, impact resistance, and weather resistance of the color-changing coated aluminum strip are difficult to achieve. satisfactory

Method used

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  • Color-varying and color-coated aluminum strip and production technology thereof

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Experimental program
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Effect test

Embodiment 1

[0057] The invention relates to a production process of color-changing coated aluminum strips, which includes the steps of cleaning, production process, primer coating and baking, surface coating and baking, cooling and packaging.

[0058] The production process includes degreasing and passivation steps, and the degreasing agent used in the degreasing step is a biological degreasing agent.

[0059] The biological degreasing agent comprises the following components: 2.5 wt% of biological enzyme, 5 wt% of EDTA, 2.5 wt% of surfactant, and the balance is water; the biological enzyme is selected from protein enzymes.

[0060] The degreasing step further includes the steps of pre-cleaning, mechanical brushing, degreasing agent rinsing, hot water spraying and hot air drying.

[0061] Both the pre-cleaning and degreasing agent rinsing steps use a nozzle to spray the biological degreasing agent to the surface of the aluminum strip, the nozzle pressure is 0.2MPa, and the time is 5s.

...

Embodiment 2

[0072] The invention relates to a production process of color-changing coated aluminum strips, which includes the steps of cleaning, production process, primer coating and baking, surface coating and baking, cooling and packaging.

[0073] The production process includes degreasing and passivation steps, and the degreasing agent used in the degreasing step is a biological degreasing agent.

[0074] The biological degreasing agent comprises the following components: 3 wt% of biological enzyme, 6 wt% of EDTA, 3 wt% of surfactant, and the balance is water; the biological enzyme is selected from protein enzymes.

[0075] The degreasing step further includes the steps of pre-cleaning, mechanical brushing, degreasing agent rinsing, hot water spraying and hot air drying.

[0076] Both the pre-cleaning and degreasing agent rinsing steps use a nozzle to spray the biological degreasing agent to the surface of the aluminum strip, the nozzle pressure is 0.2MPa, and the time is 5s.

[007...

Embodiment 3

[0087] The invention relates to a production process of color-changing coated aluminum strips, which includes the steps of cleaning, production process, primer coating and baking, surface coating and baking, cooling and packaging.

[0088] The production process includes degreasing and passivation steps, and the degreasing agent used in the degreasing step is a biological degreasing agent.

[0089] The biological degreasing agent comprises the following components: 2 wt% of biological enzyme, 6 wt% of EDTA, 2 wt% of surfactant, and the balance is water; the biological enzyme is selected from protein enzymes.

[0090] The degreasing step further includes the steps of pre-cleaning, mechanical brushing, degreasing agent rinsing, hot water spraying and hot air drying.

[0091] Both the pre-cleaning and degreasing agent rinsing steps use a nozzle to spray the biological degreasing agent to the surface of the aluminum strip, the nozzle pressure is 0.2MPa, and the time is 5s.

[009...

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Abstract

The invention relates to a color-varying and color-coated aluminum strip and a production technology thereof. The color-varying and color-coated aluminum strip is uniform in thickness, good in color consistency, good in compactness and good in weather resistance; through time change, the color change of the aluminum strip can be clearly seen according to the illumination intensity, a visual impact is provided for people, so that the effect of pursuing the aesthetic feeling is achieved and good visual enjoyment is achieved; in addition, the production technology has no waste steam and waste liquid discharge, and environmental pollution is reduced; and the production technology is high in efficiency and can be applied to continuous high-speed production.

Description

technical field [0001] The invention relates to the field of building decoration materials, and relates to a color-changing coated aluminum strip and a production process thereof, in particular to a color-changing coated aluminum strip and a production process thereof. Background technique [0002] Color-coated aluminum and aluminum alloy strips are commonly known as color-changing coated aluminum strips. As the name implies, they are aluminum and aluminum alloy strips whose surface has been coated and colored, and are deep-processed products of aluminum and aluminum alloy strips. The paints for color-changing aluminum strips are mainly divided into two types: fluorocarbon (PVDF) and polyester (PE). Both are similar in paint color and appearance. The former has better weather resistance, longer service life, and is more suitable for outdoor environments, but at the same time the price is higher. [0003] The production process of color-changing coated aluminum strips usual...

Claims

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Application Information

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IPC IPC(8): B05D5/06B05D7/14B05D3/10C23C22/73C23G1/24
CPCB05D3/102B05D5/066B05D7/14B05D7/584B05D2202/25B05D2451/00B05D2503/00B05D2506/10C23C22/73C23G1/24B05D2420/01B05D2420/02B05D2420/03
Inventor 魏伟
Owner 滨州永光工贸有限公司
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