Question

Give two reasons why aluminium is used to make soft drinks cans

Answer 1

Answer:

Aluminum cans bring packaging benefits as well. They are easily formed, resist corrosion and will not rust. Cans made from aluminum easily support the carbonation pressure required to package soda and withstand pressures of up to 90 pounds per square inch.

Explanation:

Aluminum is malleable and ductile enough that it can be cold-formed (rolled thin, and pressed into a can shape) easily, it’s strong enough that the can won’t just fall apart, once it forms an oxide coat, it’s fairly nonreactive (Although, soda cans do have a thin polymer liner, because the acids will eat away the oxide layer very quickly), and its cheap. It’s not really the best material for any individual reason, but it’s a good balance between every factor manufacturers look for in a packaging material.

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