3104 aluminum alloy for thin tank body and preparation method of plates thereof
A technology of aluminum alloy sheet and aluminum alloy, which is applied in the field of metal processing, can solve problems such as inability to meet, and achieve the effects of high formability, improved strength, and improved strength and formability.
Inactive Publication Date: 2019-03-26
CHINALCO MATERIALS APPL RES INST CO LTD
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Problems solved by technology
[0004] Aiming at the problem that the plates in the prior art cannot meet the requirements for can body material below 0.26mm, the present invention provides a 3104 aluminum alloy for thin can bodies with reduced thickness, increased strength and higher forming ability and a method for preparing the plates thereof
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[0028] A 3104 aluminum alloy for a thin can body of the present invention, the components and their mass percentages are: Mg 1.0%-1.3%, Mn 0.8%-1.1%, Cu 0.1%-0.25%, Fe 0.25%-0.5% , Si 0.15%-0.4%, the rest is Al and unavoidable impurities. Preferably, the composition and mass percentage of the aluminum alloy are: Mg 1.2%-1.3%, Mn 0.8%-0.9%, Cu 0.2%-0.25%, Fe 0.25%-0.4%, Si 0.2%-0.25% %, the rest is Al and unavoidable impurities.
[0029] Mn element is a strengthening element in the alloy. When the Mn element is lower than 0.8%, the alloy plate cannot obtain the required strength and there is not enough AlFeMn compound; if the Mn element content is higher than 1.1%, there will be a large number of smaller sizes in the alloy. The large AlFeMn compound will cause the sheet formability to decline; at the same time, the excessive Mn element will also lead to a sharp increase in the number of AlFeMn phases in the alloy ingot. All transformed into the α phase (Al 12 (FeMn) 3 Si ph...
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Abstract
The invention provides a 3104 aluminum alloy for a thin tank body and a preparation method of plates thereof. Components of the 3104 aluminum alloy comprise, by mass percentage, 1.0-1.3% of Mg, 0.8-1.1% of Mn, 0.1-0.25% of Cu, 0.25-0.5% of Fe, 0.15-0.4% of Si and the balance Al and inevitable impurities. The preparation method of the plates of the aluminum alloy comprises the following steps thatthe aluminum alloy is sequentially subjected to smelting, casting and face milling, so that an aluminum alloy cast ingot is obtained; the aluminum alloy cast ingot is subjected to two-stage uniform heat treatment; the aluminum alloy cast ingot is subjected to hot rolling, and a hot-rolled plate is obtained; and the hot-rolled plate is subjected to cold rolling to obtain the aluminum alloy plate. According to the 3104 aluminum alloy for the thin tank body and the preparation method of the plates thereof, the thickness is reduced, the strength is improved, and the forming ability is higher.
Description
technical field [0001] The invention belongs to the technical field of metal processing, and in particular relates to a preparation method of a 3104 aluminum alloy for a thin can body and a plate thereof. Background technique [0002] The 3104 aluminum alloy sheet for the can body is the raw material for the manufacture of the aluminum alloy pop can body, which is a thin plate with a thickness of less than 0.4mm. After blanking and cupping, multi-pass thinning and deep drawing, can bottom stamping, cleaning and baking, it becomes a white can body. Since pop-top cans are used to seal and store liquids, the stored carbonated beverages, beer and other liquids contain carbon dioxide dissolved in them to form carbonic acid. In the state of vibration or temperature rise, the carbonic acid will decompose into carbon dioxide to increase the pressure inside the tank. Insufficient strength of the body material will cause the bottom of the tank to reverse or the tank to rupture. Ther...
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IPC IPC(8): C22C21/08C22F1/047
CPCC22C21/08C22F1/047
Inventor 杨阳赵丕植邹立颖郑晓兵
Owner CHINALCO MATERIALS APPL RES INST CO LTD