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Why are cans made of aluminum alloy? What alloy is used for the pull ring of the can?

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2019-03-20 11:27

Our common canned beverages include Coca-Cola, Sprite, Jiaduobao, etc. They all use aluminum alloy materials. What are the advantages of using aluminum alloy materials? What alloys are used for the pull-tab rings? Here is a brief description of Mingtai Aluminum.

Advantages of aluminum alloy cans

Since aluminum forms an oxide film in the air, namely Al2O3, which makes aluminum not oxidized even at the high temperature of Baidu, the appearance of aluminum cans also has such an oxide film, even if it is inside. There is a liquid (the liquid can form a solution of aluminum and oxygen to accelerate the oxidation reaction), and it will not rust like iron. Although the carbonated beverage contains carbonate, aluminum does not easily react with it, and the can puller is made of 5182 aluminum.

At the same time, the relative density of aluminum alloy is small, the mass of aluminum of the same volume is much smaller than that of iron. The easier to pull the can on hand is, of course, the lighter the better, the more convenient it is to hold; the aluminum alloy is easy to recycle and environmentally friendly.

Aluminum is highly malleable and can be easily alloyed with other metals. The hardness, plasticity and even memory of aluminum are greatly improved. Aluminum cans have good memory and are not deformed in the hands. Most of the food packaging uses tin-aluminum alloy, because it is easy to process, easy to tear off, and has high plasticity. It can be said to be a widely used material.

Aluminum alloy for pull can pull ring

The alloy material commonly used for the pull-tab is 5182 aluminum plate. The main alloying element of the 5182 alloy aluminum plate is magnesium, and a small amount of silicon is added. Therefore, the welding performance of welding 5182 aluminum plate for gas welding, argon arc welding, spot welding and seam welding is very good. . As a high-magnesium alloy, the 5182 can aluminum plate is a non-heat treatable alloy with good strength, good corrosion resistance and good machinability. It is widely used.

Henan Mingtai Aluminum Co., Ltd. is a well-known aluminum plate manufacturer in China. The privately-owned enterprises in China are among the top 500 manufacturers. The quality of the products produced is excellent. The delivery time is 7-25 days. Welcome to inquire about aluminum foil and foil products.