Aluminum alloy foil
A technology of aluminum alloy foil and aluminum alloy, applied in the field of aluminum alloy foil forming container and aluminum alloy foil
Active Publication Date: 2012-02-01
TOYO ALUMINIUM KK +1
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0027] However, at this time, since hard and coarse intermetallic compounds of the Al-Cr-Mn system are crystallized on the aluminum foil, when the container is formed from the aluminum foil, the possibility of defects such as pinholes may occur. In other words, there is room for improvement
[0028] In this way, there are problems or room for improvement in any of the above-mentioned ones. If it is possible to design a single aluminum alloy foil with a specific resistance value above a certain value, which is excellent in formability and corrosion resistance, it is suitable for use in electromagnetic cookers. The aluminum alloy foil forming container for heating and cooking can solve all the above problems
Method used
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Examples
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Embodiment
[0094] Examples and comparative examples are shown below to further clarify the characteristics of the invention. However, the scope of the present invention is not limited to these Examples.
[0095] Aluminum alloys having compositions shown in Table 1 were used in Examples and Comparative Examples. In addition, the composition analysis of the foil was performed with an ICP emission spectrometer.
[0096] Table 1
[0097]
[0098] For the aluminum alloy foils of Examples and Comparative Examples, samples with a thickness of 100 μm were produced by casting, rolling and annealing under the conditions shown in Table 2 after preparing aluminum alloy melts.
[0099] Table 2
[0100]
[0101] The underlined numerical values in Table 2 are outside the ranges of the cooling rate, cast thickness, and annealing heating retention time during casting of the aluminum alloy foil of the present invention.
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Abstract
The present invention provides an aluminum alloy foil forming container, which is formed of a single aluminum alloy foil having a resistivity value above a certain value, has excellent formability and corrosion resistance, and is suitable for heating and cooking by an electromagnetic cooker. Cast aluminum alloy melt at a cooling rate of 100°C / sec or higher to a thickness of 10 mm or less, then cold-roll to a thickness of 50 to 300 μm, and then perform annealing at a temperature of 300°C or higher for a holding time of within 10 minutes , forming an aluminum alloy foil with a thickness of 50-200 μm and a resistivity value of 6.0 μΩcm or more, and forming it under pressure to obtain an aluminum alloy foil forming container with a bottom wall (11), a peripheral wall (12) and an edge (13) ( 10). The container (10) is excellent in formability (especially pinhole resistance) and corrosion resistance, and has electrical resistance suitable for heating and cooking by an electromagnetic cooker.
Description
technical field [0001] The present invention relates to: a food package suitable for heating and cooking by an electromagnetic cooker, an aluminum alloy foil-shaped container used as a container for the food package, and a raw material of the container with a specific thickness obtained by a specific manufacturing method. Aluminum alloy foil with specific resistance value and resistivity value, and the manufacturing method of the aluminum alloy foil. Background technique [0002] The food package made of noodles, hot pot and other food in the aluminum foil forming container can be eaten directly by heating and cooking without transferring to other containers, and the container can be thrown away after eating, so it is very convenient. It is used in convenience stores. Sales and so on are widely popularized. [0003] In the past, these food packages were generally heated and cooked directly by a gas stove or the like. However, in recent years, electromagnetic cookers have be...
Claims
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IPC IPC(8): C22C21/00A47J27/00A47J36/02B65D81/34C22F1/04C22F1/00
CPCB65D2581/3487A47J36/02B65D1/34C22F1/04B65D2581/3472B65D81/3453C22C21/00
Inventor 吕明哲多田裕志左近贵浩
Owner TOYO ALUMINIUM KK