5052 5182 Aluminium Cap Seal for Cans

Nowadays, aluminum is used more and more widely in daily life. Among them, there is another aluminum alloy product that has the highest appearance rate in daily life—aluminum cap seal for cans. It can be used to make cans, beer caps, pull tabs, etc. Its thin thickness, high sealing performance, low production cost, and recyclability are the factors why aluminum bottle cap material is favored.

Food packaged in aluminum cans tastes better than that packaged in plastic bottles. Taking the two types of sodas packaged as an example. When injected with the same proportion of carbon dioxide, plastic is more easily "penetrated" by carbon dioxide than aluminum. Although the bottle seems to be sealed, carbon dioxide will still leak out of the bottle through some physical and chemical reactions.

If a plastic bottle of soda is left in direct sunlight for twelve weeks, 15% of the carbon dioxide can be lost. The main alloys for pop cans are 3003, 3004, 5180 and 5052 aluminum sheet. Due to their high hardness, they are generally suitable for later slitting and stamping.

In terms of manufacturing easy-open lids, 5052 alloy is used more, accounting for about 60% of the total, and the thickness is mostly 0.22~0.26mm. 5052 aluminum is used for beverage caps and food caps without internal pressure, and 5182 aluminum is used for beverage caps with internal pressure.

In the production of cans, minimizing the thickness of the sheet, improving the elongation performance and strength of the product, improving material utilization and reducing production costs are the goals pursued by the can manufacturing industry. At present, the thickness of can cover materials is 0.27mm, 0.265mm, 0.26mm, 0.25mm, 0.24mm, and 0.22mm. As the thickness of can cover becomes thinner, higher requirements are placed on the mechanical properties of the aluminum sheets.

5052 aluminum alloy has good corrosion resistance, weldability, cold workability, and medium strength. Its surface is very bright after coating. It is widely used in the basic lid of functional drinks. The aluminum alloy 5052 aluminum plate used for can lids has a flat shape and precise thickness control, ensuring a thickness tolerance of ±0.005mm and ensuring stable post-processing.

5182 aluminum plate belongs to the Al-Mg series alloy and is widely used. Especially in the packaging materials industry, this alloy is inseparable because 5182 aluminum alloy has good corrosion resistance, excellent weldability, good cold workability, and has medium strength. It is especially suitable for use in pop can lid and pull ring for cans.

Aluminum sheet requirements

Flatness: The aluminum sheet does not allow obvious waves, the wave height within 1 meter does not exceed 3mm, and the waves do not exceed 3/meter.

Side curvature: The side curvature of the product at any length of 2000mm should not be greater than 0.5mm

End warpage: Any product with a length of 1500mm is cut, and the end warpage height is ≤5mm.

Joints: No joints is allowed.

Haomei Aluminum mainly provides 3003, 3004 5052 and 5182 aluminum sheet for can lids and pull rings. The products are highly praised by users for their good metallurgical quality, excellent molding performance and sufficient compressive strength, high-precision thickness fluctuation and plate shape control, and excellent surface quality. Welcome to leave message below to inquire what you need.

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