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Corrosion-resistant aluminum alloy target material for photovoltaic reflective film, preparation method thereof, and aluminum alloy thin film

A corrosion-resistant aluminum alloy and reflective film technology, which is applied in metal material coating process, vacuum evaporation plating, coating, etc., can solve problems such as easy oxidation, not resistant to acid, alkali and salt corrosion, and reduced output power of components. Achieve the effects of improving adhesion, improving adhesion and corrosion resistance, improving surface tension and roughness

Active Publication Date: 2021-03-23
常州斯威克新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, conventional photovoltaic modules are composed of cells. Since the welding ribbon covers 2-4% of the surface area of ​​the battery sheet, and the reflection of the solar light by the welding ribbon is diffuse reflection, which directly reduces the output power of the module, a new type of PV module was developed. Reflective film pasted on the surface of the welding strip, which has been widely used
The reflective material is metal aluminum film, which has the characteristics of low price and simple production and preparation process, and is widely used, but there are also problems such as easy oxidation, insufficient surface adhesion of polymer substrates, and resistance to acid, alkali and salt corrosion.

Method used

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  • Corrosion-resistant aluminum alloy target material for photovoltaic reflective film, preparation method thereof, and aluminum alloy thin film
  • Corrosion-resistant aluminum alloy target material for photovoltaic reflective film, preparation method thereof, and aluminum alloy thin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing a corrosion-resistant aluminum alloy target for photovoltaic reflective film:

[0029] 1. Select aluminum with a purity of 99.999wt% or more, transition metal manganese 5.8wt%, yttrium 0.2, titanium 2.3 and rare earth element lanthanum 1.07 with a purity of 99.9wt% or more, wherein the aluminum content is 90.63wt%.

[0030] 2. Vacuum smelting process: the induction heating furnace is selected as the smelting furnace, and the smelting and casting process is carried out under vacuum conditions to ensure that the components are fully homogenized and reduce the content of non-metallic impurities in the ingot. At the same time, a square casting mold is selected to finally obtain a cuboid ingot .

[0031] 3. Hot rolling process: heat the ingot to 250°C for multi-pass hot rolling, the rolling reduction in a single pass is controlled between 10nm, and the temperature after the pass is controlled between 300°C. The hot rolling includes two or more passes ...

Embodiment 2

[0039] A method for preparing a corrosion-resistant aluminum alloy target for photovoltaic reflective film:

[0040] 1. Select aluminum with a purity of more than 99.999wt%, transition metals zirconium 3.8, titanium 1.3 and rare earth elements neodymium 1.34 and yttrium 1.98 with a purity of more than 99.9wt%, wherein the aluminum content is 91.58wt%.

[0041]2. Vacuum smelting process: the induction heating furnace is selected as the smelting furnace, and the smelting and casting process is carried out under vacuum conditions to ensure that the components are fully homogenized and reduce the content of non-metallic impurities in the ingot. At the same time, a square casting mold is selected to finally obtain a cuboid ingot .

[0042] 3. Hot rolling process: heat the ingot to 500°C for multi-pass hot rolling, the rolling reduction in a single pass is controlled between 40nm and the temperature after the pass is controlled between 400°C. The hot rolling includes two or more pa...

Embodiment 3

[0050] A method for preparing a corrosion-resistant aluminum alloy target for photovoltaic reflective film:

[0051] 1. Select aluminum with a purity of more than 99.999wt%, transition metal manganese 10.6, titanium 3.3 and rare earth element dysprosium 1.1 with a purity of more than 99.9wt%, wherein the aluminum content is 85wt%.

[0052] 2. Vacuum smelting process: the induction heating furnace is selected as the smelting furnace, and the smelting and casting process is carried out under vacuum conditions to ensure that the components are fully homogenized and reduce the content of non-metallic impurities in the ingot. At the same time, a square casting mold is selected to finally obtain a cuboid ingot .

[0053] 3. Hot rolling process: the ingot is heated to 500°C for multi-pass hot rolling, the rolling reduction in a single pass is controlled between 40nm and the temperature after the pass is controlled between 400°C. The hot rolling includes two or more passes of finish ...

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Abstract

The invention provides a corrosion-resisting aluminum alloy target material for a photovoltaic light reflecting film. The molecular formula is AlxMyNz, wherein x is larger than or equal to 75 wt%, M is a transition metal element, the content y is larger than or equal to 1 wt% and smaller than or equal to 15 wt%, N is a rare earth element, and the content z is larger than or equal to 1 wt% and smaller than or equal to 10 wt%. A vacuum melting and casting method is adopted for preparation, and the thickness of the prepared aluminum alloy thin film is 20-150 micrometers. The corrosion resisting performance and the adhesive force performance are improved, the gain effect of the light reflecting film to a module is improved, and the service life of the light reflecting film is prolonged.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic industry, and specifically relates to a corrosion-resistant aluminum alloy target material for photovoltaic reflective film and a preparation method thereof, and an aluminum alloy thin film made of the corrosion-resistant aluminum alloy target material for photovoltaic reflective film. Background technique [0002] At present, conventional photovoltaic modules are composed of cells. Since the ribbon covers 2 to 4% of the surface area of ​​the cell, and the reflection of the solar radiation by the ribbon is diffuse reflection, the output power of the module is directly reduced. Therefore, a The reflective film pasted on the surface of the welding strip has been widely used. The reflective material is metal aluminum film, which has the characteristics of low price and simple production and preparation process, and is widely used, but there are also problems such as easy oxidation, insufficient ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/00C22F1/04C23C14/20C23C14/30C23C14/34C23C14/35C23C14/02
CPCC22C21/00C22F1/04C23C14/02C23C14/20C23C14/205C23C14/30C23C14/3414C23C14/35
Inventor 童伟黄宝玉吕松吴丰华吴斌
Owner 常州斯威克新材料科技有限公司
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