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Aluminum alloy strip for LED (Light-Emitting Diode) back plate and manufacturing method thereof

An aluminum alloy plate and strip and a manufacturing method technology, which are applied in the field of aluminum alloy plate and strip for LED backplane, can solve the problems of high processing difficulty, high surface quality, high dimensional tolerance of plate shape quality and mechanical properties, etc. The effect of smoothness, uniform appearance and beautiful color and good moldability

Inactive Publication Date: 2012-05-02
JIANGSU ALCHA ALUMINUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this product has high requirements on surface quality, plate shape quality, dimensional tolerance and mechanical properties, and is difficult to process. Now most of them rely on imports.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) Casting and rolling of slabs: Pure aluminum ingots, aluminum-iron master alloy ingots, aluminum-silicon master alloy ingots, aluminum-copper master alloy ingots, aluminum-manganese master alloy ingots, aluminum Chromium master alloy ingots, magnesium ingots, or iron, silicon, copper, manganese, and chromium additives are added to the melting furnace: 0.25% iron, 0.05% silicon, 0.04% copper, 0.03% manganese, 0.12% chromium, Magnesium 2.0%, titanium 0.030%, and the rest is aluminum.

[0017] Melt the above raw materials and raise the temperature to 770°C. After refining, removing slag, stirring, analyzing and adjusting the composition, they enter the static furnace, and carry out static, refining, degassing, and slag removal in the static furnace; the aluminum liquid is exported to the static furnace , use the Al-Ti-B wire refiner adding device in the launder, add the above-mentioned ratio of titanium elements into the molten aluminum, degas and filter outside the furn...

Embodiment 2

[0026] 1) Casting and rolling of slabs: Pure aluminum ingots, aluminum-iron master alloy ingots, aluminum-silicon master alloy ingots, aluminum-copper master alloy ingots, aluminum-manganese master alloy ingots, aluminum Chromium master alloy ingots, magnesium ingots, or iron, silicon, copper, manganese, and chromium additives are added to the melting furnace: iron 0.10%, silicon 0.12%, copper 0.01%, manganese 0.04%, chromium 0.18%, Magnesium 1.85%, titanium 0.010%, the rest is aluminum;

[0027] Melt the above raw materials and raise the temperature to 730°C. After refining, removing slag, stirring, analyzing and adjusting the composition, they enter the static furnace, and carry out static, refining, degassing, and slag removal in the static furnace; the aluminum liquid is exported to the static furnace , use the Al-Ti-B wire refiner adding device in the launder, add the above-mentioned ratio of titanium elements into the molten aluminum, degas and filter outside the furnace...

Embodiment 3

[0036] 1) Casting and rolling of slabs: Pure aluminum ingots, aluminum-iron master alloy ingots, aluminum-silicon master alloy ingots, aluminum-copper master alloy ingots, aluminum-manganese master alloy ingots, aluminum Chromium master alloy ingots, magnesium ingots, or iron, silicon, copper, manganese, and chromium additives are added to the melting furnace: 0.30% iron, 0.08% silicon, 0.03% copper, 0.01% manganese, 0.15% chromium, Magnesium 2.15%, titanium 0.020%, and the rest is aluminum.

[0037] Melt the above raw materials and raise the temperature to 750°C. After refining, removing slag, stirring, analyzing and adjusting the composition, they enter the static furnace, and carry out static, refining, degassing, and slag removal in the static furnace; the aluminum liquid is exported to the static furnace , use the Al-Ti-B wire refiner adding device in the launder, add the above-mentioned ratio of titanium elements into the molten aluminum, degas and filter outside the fur...

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Abstract

The invention discloses an aluminum alloy strip for an LED (Light-Emitting Diode) back plate and a manufacturing method thereof. The strip comprises the following components in percentage by weight: 0.10-0.30 percent of iron, 0.05-0.12 percent of silicon, 0.01-0.04 percent of copper, 0.01-0.04 percent of manganese, 0.12-0.18 percent of chromium, 1.85-2.15 percent of magnesium, 0.010-0.030 percent of titanium and the balance of aluminum. The components are subjected to cast-rolling, cold rolling, washing, annealing, shearing and the like, so that the problems of poor surface quality, plate shape quality, poor mechanical performance and the like of the aluminum alloy strip for the conventional LED back plate are solved.

Description

technical field [0001] The invention relates to an aluminum alloy plate strip for an LED backplane and a manufacturing method of the strip. Background technique [0002] With the increasing popularity of the new generation of flat-panel TVs represented by LCD and plasma, the production and sales of flat-panel TVs are increasing rapidly. also growing rapidly. However, this product has high requirements on surface quality, plate shape quality, dimensional tolerance and mechanical properties, and is difficult to process. Now most of them rely on imports. Contents of the invention [0003] The object of the present invention is to provide an aluminum alloy plate and strip for LED backplanes with excellent surface quality, shape quality and mechanical properties. The invention also relates to a method for manufacturing the aluminum alloy plate and strip used for the LED backplane. [0004] In order to achieve the above object, the technical solution of the present invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22F1/047B23P15/00
Inventor 张平张敏达章建华何献忠吴永新骆駻
Owner JIANGSU ALCHA ALUMINUM CO LTD
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