What are beer cans made of?

The birthday of the beer can is considered January 24, 1935. It was then that the beer was first bottled in such a container. The cost of this packaging is much less than glass. In addition, banks made bright, put information about the company. At first, three pieces of iron were used for manufacturing, and a special key was required for opening. The modern ring appeared only in 1963. And now many are wondering: what are beer cans made of? We will try to fill this gap in the overall development.

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What does a bank consist of?

Most often, the volume of such a vessel is 0.5 and 0.33 liters. They are produced on high-speed, high-precision production lines.

Important! The main advantage of this material is that it can be completely recycled.

A can for beer, as for any other carbonated drink, must cope with internal overpressure, which can reach six atmospheres. That is why their design provides for the presence of a thick domed bottom and fairly thin walls. But these walls make the structure strong enough. What are beer cans made of? From aluminum, and like this:

• A flat round billet is pulled out until a “cup” is obtained.
• Then, the thinning of its walls is performed.
• The bottom is shaped in a special way in order to cope with high internal pressure. In addition, it should have a good combination with the lid - it will be more convenient to carry out packaging.
• The walls of the can are brought to a thickness of 0.08 mm almost everywhere. However, on top they are thicker - 0.16 mm.

Important! So it is necessary in order to form a narrowed neck, as well as create a strong connection with the lid.

• The cover is also made of aluminum. Its delivery is carried out separately.
• The well-known double lock seam is used to connect the lid and housing.
• It will be fulfilled after beer or another drink is poured into the can.

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Cap Features

For everything to work correctly, an aluminum alloy of a slightly different composition is used for the lid than for the case. The can has a concave bottom, so the design copes with the pressure of the drink. In addition, the risk that the bank will be damaged during transportation and storage is reduced.

So, what are the technological features of manufacturing here:

• The lid is made flat, as its main characteristics are hardness and strength. The aluminum alloy contains magnesium in a larger amount and manganese in a smaller amount than in the case with the case.
• The thickness of the lid is much larger than that of the whole can.
• The middle part of this part is made slightly convex. She is pressed out so that a rivet is obtained.
• A separate metal part is a key ring, it is placed on top and fixed with a rivet.
• Then grooves are performed. They are necessary so that when you open the key, the lid partially bends inward and the opening is correct.

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And again - why aluminum?

The main requirement for the material is the possibility of large plastic deformations during molding. Aluminum - that's what a beer can is made of, it's just perfect. In addition, the lids of beer cans should bend along the notches, which cannot be achieved with steel.

Important! One of the positive aspects of the fact that all the details of the can are made of the same material is that galvanic effects leading to accelerated rust formation are impossible.

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What is the use of jars for packaging?

• Thanks to such packaging, unlike glass, beer is not exposed to sunlight and oxygen. In bottles, oxygen is due to the gasket in the cap. Few people are interested in drinking sour beer.
• Due to the penetration of sunlight, the drink has an unpleasant taste and smell. After opening the bottle, it is enough to smell. If it smells of burnt rubber - beer is spoiled.
• It is believed that the best beer is draft. And it, by the way, is poured into kegs of metal, and the can is just a miniature copy of them.

Important! There are a few more details:

• It will take much less time to cool canned beer in the refrigerator.
• The can’s weight is much less.
• The jar is not so easy to break, when compared with a glass bottle.

• Each time a new, clean jar is used in production. But in the case of bottles, reuse is common.

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Stock footage

We are so used to beer in cans that sometimes we don’t even think about what this container is actually made of. Now we have opened the veil of secrecy for you, and you can show off your knowledge in the company.