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A technology for food containers and aluminum alloys, applied in the field of antibacterial aluminum alloys, can solve problems such as being unsuitable for manufacturing food containers, and achieve the effect of great economic value and social value
Inactive Publication Date: 2013-05-15
SHANDONG JIANZHU UNIV
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Abstract
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Problems solved by technology
Antibacterial aluminum alloys used in food containers not only require good antibacterial properties, but also good plastic properties. It is difficult to meet the above two requirements at the same time if the Zn content is too high, so this patent is only used for radiator fins and is not suitable for manufacturing food. with container
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Embodiment 1
[0017] In terms of weight percentage, the chemical composition is: 0.3%Mn, 0.5%Mg, 0.1%Ag, 0.1%Zn, 0.1%RE, 0.1%Ti, 0.3%Si, 0.6%Fe, 0.3%Cu, and the balance is Al Aluminum alloys are melted in a crucible resistance furnace and then cast into ingots. The ingot was homogenized at 480°C for 18h, then hot-forged at 420°C to form an aluminum plate with a thickness of 10mm, and annealed at 380°C for 1h. Cold rolled into a plate with a thickness of 1 mm to obtain a product.
Embodiment 2
[0019] In terms of weight percentage, the chemical composition is: 0.9%Mn, 1.0%Mg, 1.5%Ag, 0.5%Zn, 0.5%RE, 0.10%Ti, 0.15%Si, 0.3%Fe, 0.15%Cu, and the balance is Al Aluminum alloys are melted in a crucible resistance furnace and then cast into ingots. The ingot was homogenized at 485°C for 20h, then hot-forged at 420°C into a 10mm thick aluminum plate, and annealed at 390°C for 1h. Cold rolled into a plate with a thickness of 0.4 mm to obtain a product.
Embodiment 3
[0021] In terms of weight percentage, the chemical composition is: 1.5%Mn, 1.5%Mg, 3.0%Ag, 1.0%Zn, 1.0%RE, 0.2%Ti, 0.1%Si, 0.1%Fe, 0.1%Cu, and the balance is Al Aluminum alloys are melted in a crucible resistance furnace and then cast into ingots. The ingot was homogenized at 500°C for 24h, then hot forged at 420°C into a 10mm thick aluminum plate, and annealed at 400°C for 1h. Cold rolled into a plate with a thickness of 0.5 mm to obtain a product.
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Abstract
The invention relates to antibacterial aluminum alloy for a food container. The antibacterial aluminum alloy comprises the chemical components in percentage by weight as follows: 0.3-1.5% of Mn, 0.5-1.5% of Mg, 0.1-3.0% of Ag, 0.1-1.0% of Zn, 0.1-1.0% of RE, 0.1-0.2% of Ti, less than 0.3% of Si, less than 0.6% of Fe, less than 0.3% of Cu, less than or equal to 0.20% of other impurities and the balance of Al. The antibacterial aluminum alloy not only has excellent antibacterial performance with the antibacterial property greater than 99.0%, but also maintains good plasticity and corrosion resistance of aluminum alloy, so that the manufacturing demand and the demand on antibacterial performance of container products in industries such as food and kitchen and bath can be satisfied.
Description
technical field [0001] The invention relates to an antibacterial aluminum alloy, in particular to an antibacterial aluminum alloy for food containers. Background technique [0002] Aluminum alloy is light, beautiful, stainless and easy to form. It can be made into cans, lids, bottles, barrels and packaging foils in the form of thin plates and foils. It is widely used in beverages, food, cosmetics, medicines, cigarettes, industrial products, etc. occasion. In recent years, with the occurrence of many bacterial infection incidents around the world, the health management issues of antibacterial and antibacterial have attracted great attention from the society. The food industry, medical and health industry and even ordinary families have higher and higher hygiene requirements for daily utensils. , the demand for antibacterial products is growing. In order to meet this demand, there is an urgent need to develop aluminum alloys with a bactericidal function. [0003] In the pr...
Claims
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