How are aluminium bottles made for storing sensitive materials ?

The process of making aluminium bottles is a complex combination of engineering, metallurgy and precision. It is designed to ensure that finished bottles meet the highest quality standards and offer optimal protection for the sensitive materials they contain.

Find out how an aluminium bottle for storing sensitive materials is made.

What are the stages involved in manufacturing an aluminium bottle?

Cutting the aluminium is the first step in designing a robust and resilient bottle.  It is produced in sheet form from specific aluminium alloys and rolled to the required thickness. The first step in the process is to cut these sheets into rectangular shapes that correspond to the size of the aluminium bottle to be produced. Shears or laser-cutting techniques are used for maximum precision.

Once the sheets have been cut, they are fed into the machine, which gives them their industrial packaging shape. Two main methods are commonly used: stamping and blow moulding. In the stamping process, a hydraulic press exerts considerable pressure on the sheet, forcing it into the shape of the bottle, including the base and neck. In the blow moulding process, the sheet is heated and then pressed against a mould, creating the desired shape. Which of these methods is used depends on the specific design of the bottle and the production requirements.

Once the basic shape of the bottle has been achieved, the edges are welded together to create an airtight seal. Welding can be done using a variety of techniques, including resistance welding, laser welding and friction welding. The main objective is to ensure that the bottle is leak-proof so as to prevent any contamination of the material contained inside.

Depending on your needs, aluminium bottles can also be coated with protective materials to improve their properties. For example, an inner coating can be applied to prevent any reaction between the contents of the bottle and the aluminium itself. External coatings can be added for aesthetic reasons or to provide an additional layer of anti-corrosion protection.

Strict quality controls are carried out throughout the manufacturing process to ensure compliance with standards and specifications. Strength, leak-tightness and sizing tests are routinely carried out to ensure that each bottle meets quality requirements.

What makes aluminium a suitable material for storing sensitive materials?

As a packaging material, aluminium has a range of technical properties that make it a particularly good choice for preserving sensitive materials. First of all, its lightness makes it an ideal material for reducing shipping costs while retaining the strength needed to protect the contents of the bottles. What’s more, aluminium is non-toxic, which means that it does not react chemically with most of the substances it contains, thus avoiding any contamination of the product.

Aluminium is also remarkably resistant to corrosion. Unlike steel, aluminium does not rust, which means that aluminium cylinders can be used for products that are sensitive to humidity, oxygen or other corrosive elements. In addition, an industrial aluminium container can be hermetically sealed with accessories to prevent the entry of air or external contaminants, which is essential for the preservation of sensitive materials.

Another significant advantage of aluminium is that it can be recycled. It can be recycled several times without losing its properties, and that reduces the environmental impact of its production and disposal.

In short, aluminium offers a unique combination of lightness, corrosion resistance, non-toxicity and recyclability, making it an outstanding choice for preserving sensitive materials in bottles.