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Production method of aluminum alloy foil for aviation lunch box

A manufacturing method and technology of aluminum alloy foil, applied in the field of aluminum alloy materials, can solve the problems of low strength, easy cracking in stamping, poor surface quality, etc., and achieve the effect of high strength and easy forming

Active Publication Date: 2015-01-21
DALISHEN ALUMINUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The 1145, 1100, 8011, 8006 and 3003 aluminum alloy foils currently used in the production process have defects such as low strength, easy cracking by stamping, and poor surface quality, which cannot meet the development trend and quality requirements of the industry.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Taking the 5052-O state aluminum alloy foil with a finished product specification of 0.07 mm in thickness and 300 mm in width as an example, a method for manufacturing aluminum alloy foil for aviation lunch boxes is described, including the following steps:

[0047] (1) Ingredients: The chemical composition is formulated according to the following weight percentages, namely Si≤0.1%, Fe≤0.2%, Cu≤0.1%, Mn≤0.1%, 2.4%≤Mg≤2.8%, 0.15%≤Cr≤0.25% , Zn≤0.05%, 0.1%≤Ti≤0.15%, the balance is Al;

[0048] (2) Melting: the melting temperature is 705~740°C;

[0049] (3) Refining: use "chlorine + argon" to refine the melt, and the refining temperature is 725~740°C;

[0050] (4) Grain refinement: Use grain refiner Al-5Ti-0.2B wire to conduct online grain refinement on the melt;

[0051] (5) Degassing: The Alpur method degassing device is used to degas the melt online;

[0052] (6) Filtration: 30PPi+40PPi double-stage ceramic filter plate is used to filter the melt online;

[0053...

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Abstract

The invention discloses a production method of an aluminum alloy foil for an aviation lunch box. The production method comprises the steps of: (1) burdening: the aluminum alloy foil comprises the following chemical components in percentage by weight: not more than 0.1% of Si, not more than 0.2% of Fe, not more than 0.1% of Cu, not more than 0.1 of Mn, not more than 2.8% and not less than 2.4% of Mg, not more than 0.25% and not less than 0.15% of Cr, not more than 0.05% of Zn, not more than 0.15% and not less than 0.1% of Ti, and the balance of Al; (2) smelting; (3) refining; (4) crystal grain refinement; (5) degassing; (6) filtering; (7) casting; (8) sawing; (9) surface milling; (10) uniform heating; (11) hot rolling; (12) cold rolling; (13) cleaning and edge cutting; (14) intermediate annealing; (15) foil rolling; (16) slitting; (17) oil removing and annealing of a finished product; and (18) checking. Compared with aluminum alloy foils 1145, 1100, 8011, 8006 and 3003, the aluminum alloy foil has the characteristics of high strength, easy forming, no rupture and smooth surface, and satisfies the use quality requirement of the aviation lunch box.

Description

technical field [0001] The invention belongs to the technical field of aluminum alloy materials, and relates to a method for manufacturing aluminum alloy foil for aviation lunch boxes. Background technique [0002] With the development of the economy and the improvement of people's living standards, the demand for aluminum aviation lunch boxes has risen steadily. It generally adopts 1145, 1100, 8011, 8006, and 3003 aluminum alloy foils with a thickness of ≤0.15mm to bake through coating, obtained by stamping. However, in order to improve the quality and increase the efficiency, the aluminum foil used for aviation lunch boxes is developing in the direction of thinner thickness and higher strength. The 1145, 1100, 8011, 8006 and 3003 aluminum alloy foils currently used in the production process have defects such as low strength, easy cracking by stamping, and poor surface quality, which can no longer meet the development trend and quality requirements of the industry. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/06C22C1/02C22F1/047
CPCB23P15/00C22C1/02C22C21/08C22F1/047
Inventor 曹晓国曹旷
Owner DALISHEN ALUMINUM
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