Six-series high-surface mobile phone aluminum alloy shell and production method of aluminum alloy thin plate

A production method and aluminum alloy plate technology, which is applied in the field of mobile phone materials, can solve the problems of high scrap rate, achieve the effect of reducing scrap rate, simple process, and eliminating material grain defects and black line defects

Inactive Publication Date: 2018-06-12
SOUTHWEST ALUMINUM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing production process still cannot completely solve the material grain defects and black line defects that may appear in the mobile phone casing, and there is a problem of high scrap rate

Method used

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  • Six-series high-surface mobile phone aluminum alloy shell and production method of aluminum alloy thin plate
  • Six-series high-surface mobile phone aluminum alloy shell and production method of aluminum alloy thin plate
  • Six-series high-surface mobile phone aluminum alloy shell and production method of aluminum alloy thin plate

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0139] 5252 alloy chemical composition: Si is 0.032%, Fe is 0.048%, Cu is 0.062%, Mn is 0.01%, Mg is 2.47%, Ni is 0.01%, Zn is 0.01%, Ti is 0.011%, single impurity ≤0.05% , the total impurity ≤ 0.15%, the balance is Al.

[0140] The ingot specification is 520×1300mm;

[0141] Ingredients: control Fe≤0.12% when batching before the furnace; no Ti is mixed before the furnace, when using waste, it is required to ensure that the total Ti content in the waste and aluminum ingots is ≤0.005%, and the final finished ingot Ti≤0.015%; slag in contact with aluminum water Tips, stainless steel refiners, stainless steel sampling spoons, etc., and paint before each use.

[0142] Melt refining and purification: use a "T" type stainless steel refiner to refine in the static furnace, the melt refining temperature is 755 ° C, the refining gas is high-purity argon, each refining time is 20 minutes, and the interval between two refining is 30 minutes , and the standing time was 30 minutes. The ...

Embodiment 2

[0158] 5252 alloy chemical composition: Si is 0.002%, Fe is 0.025%, Cu is 0.06%, Mn is 0.01%, Mg is 2.34%, Ni is 0.01%, Zn is 0.01%, Ti is 0.008%, single impurity ≤0.05% , the total impurity ≤ 0.15%, the balance is Al.

[0159] The ingot specification is 520×1300mm;

[0160] Ingredients: control Fe≤0.12% when batching before the furnace; no Ti is mixed before the furnace, when using scrap, it is required to ensure that the total Ti content in the scrap and aluminum ingot is ≤0.005%, and the final finished ingot Ti≤0.015%; slag removal in contact with aluminum water Tips, stainless steel refiners, stainless steel sampling spoons, etc., and paint before each use.

[0161] Melt refining and purification: use "T" type stainless steel refiner to refine in static furnace, melt refining temperature is 745℃, refining gas is high-purity argon, each refining time is 25 minutes, and the interval between two refining is 38 minutes , and the standing time was 30 minutes. The online refi...

Embodiment 3

[0175] 6061 alloy chemical composition: Si is 0.61%, Fe is 0.07%, Cu is 0.18%, Mn is 0.01%, Mg is 1.08%, Cr is 0.20%, Ni is 0.01%, Zn is 0.01%, Ti is 0.010%, Single impurity ≤ 0.05%, total impurity ≤ 0.15%, the balance is Al.

[0176] The ingot specification is 510×1360mm;

[0177] Ingredients: control Fe≤0.12% when batching before the furnace; no Ti is mixed before the furnace, when using scrap, it is required to ensure that the total Ti content in the scrap and aluminum ingot is ≤0.005%, and the final finished ingot Ti≤0.015%; slag removal in contact with aluminum water Tips, stainless steel refiners, stainless steel sampling spoons, etc., and paint before each use.

[0178] Melt refining and purification: use a "T" type stainless steel refiner for refining in a static furnace, the melt refining temperature is 750°C, and the refining gas is high-purity argon. Each refining time is 28 minutes, and the interval between two refining is 35 minutes. minutes, and the standing ti...

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Abstract

The invention provides a six-series high-surface mobile phone aluminum alloy shell. The six-series high-surface mobile phone aluminum alloy shell is obtained by carrying out stamping, machining and oxidization on an aluminum alloy plate, and the aluminum alloy is an aluminum alloy 6061. Starting from the raw material of the aluminum alloy plate of the mobile phone aluminum alloy shell, by combining the strength requirement of the mobile phone aluminum alloy shell and the appearance requirement of the high surface, special selection is carried out on the type of the aluminum alloy, the components of the aluminum alloy are creatively selected and combined and supplemented by specific proportion contents, the specific aluminum alloy 6061 is selected as the aluminum alloy plate, and thereforethe material line defect and the black line defect are eliminated from the basic aluminum alloy plate, the rejection rate caused by the material line defect and the black line defect is greatly reduced, the working procedures are simple and suitable for application and popularization of industrial mass production, and important actual significance and market prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of mobile phone materials, and relates to a production method of a 6-series mobile phone aluminum alloy casing and an aluminum alloy plate, in particular to a production method of a 6-series high-surface mobile phone aluminum alloy casing and an aluminum alloy sheet. Background technique [0002] Aluminum alloy is an alloy based on aluminum, the main alloying elements are copper, silicon, magnesium, zinc and manganese. Aluminum alloy is the most widely used non-ferrous metal structural material in industry. With the rapid development of the economy, aluminum alloy materials have been widely used in civil fields, machinery manufacturing, ships and chemical industries. Especially in recent years, with the integration of the global economy, the rapid development of mobile phone applications has also driven the mobile phone manufacturing industry. The vigorous development of mobile phone-based 3C products, such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/08C22C1/03C22C1/06C22F1/047
CPCC22C1/026C22C1/03C22C1/06C22C21/08C22F1/047
Inventor 林顺岩周志军温庆红姚勇林林
Owner SOUTHWEST ALUMINUM GRP
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