Aluminium as a material - PowerPoint PPT Presentation

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Aluminium as a material

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Physically, chemically and mechanically aluminium is a metal like steel, brass, copper, zinc, lead or titanium. It can be melted, cast, formed and machined much like these metals and it conducts electric current. In fact, often the same equipment and fabrication methods are used as for steel. – PowerPoint PPT presentation

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Title: Aluminium as a material


1
ALUMINIUM AS A MATERIAL
2
Background
  • Physically, chemically and mechanically aluminium
    is a metal like steel, brass, copper, zinc, lead
    or titanium. It can be melted, cast, formed and
    machined much like these metals and it conducts
    electric current. In fact often the same
    equipment and fabrication methods are used as for
    steel.

3
Light Weight
  • Aluminium is a very light metal with a specific
    weight of 2.7 g/cm3, about a third that of steel.
    For example, the use of aluminium in vehicles
    reduces dead-weight and energy consumption while
    increasing load capacity. Its strength can be
    adapted to the application required by modifying
    the composition of its alloys.

4
Corrosion Resistance
  • Aluminium naturally generates a protective oxide
    coating and is highly corrosion resistant.
    Different types of surface treatment such as
    anodising, painting or lacquering can further
    improve this property. It is particularly useful
    for applications where protection and
    conservation are required.

5
Electrical and Thermal Conductivity
  • Aluminium is an excellent heat and electricity
    conductor and in relation to its weight is almost
    twice as good a conductor as copper. This has
    made aluminium the most commonly used material in
    major power transmission lines.

6
Reflectivity
  • Aluminium is a good reflector of visible light as
    well as heat, and that together with its low
    weight, makes it an ideal material for reflectors
    in, for example, light fittings or rescue
    blankets.

7
Ductility
  • Aluminium is ductile and has a low melting point
    and density. In a molten condition it can be
    processed in a number of ways. Its ductility
    allows products of aluminium to be basically
    formed close to the end of the products design.

8
Impermeable and Odourless
  • Aluminium foil, even when it is rolled to only
    0.007 mm thickness, is still completely
    impermeable and lets neither light aroma nor
    taste substances out. Moreover, the metal itself
    is non-toxic and releases no aroma or taste
    substances which makes it ideal for packaging
    sensitive products such as food or
    pharmaceuticals.

9
Recyclability
  • Aluminium is 100 percent recyclable with no
    downgrading of its qualities. The re-melting of
    aluminium requires little energy only about 5
    percent of the energy required to produce the
    primary metal initially is needed in the
    recycling process.

10
The advantages of aluminium
  • Aluminium is lightweight, yet extremely stable
  • The density of aluminium is approx. 2.6 to 2.8  g
    per cm³. That is approx. 1/3 the density of
    steel, which is why aluminium is also called
    light metal. In spite of its low weight,
    aluminium is extremely strong.
  • Aluminium can be processed in a wide variety of
    ways
  • All standard processing methods welding,
    forming, etc. can be applied to aluminium, and
    in many cases their application is much easier
    than with other metals.
  • Aluminium is impact-resistant and extremely
    strong
  • The surface of an aluminium sheet dents on
    impact, but the force of the impact is absorbed
    by the deformation.

11
  • Aluminium is corrosion-resistant and protects
    itself
  • When it comes into contact with oxygen from the
    air, the surface of aluminium oxidises, and this
    dense layer of oxide immediately reforms when
    damaged and protects the metal underneath against
    corrosion.
  • Under conditions of particular stress, surface
    protection can be improved even further by means
    of anodisation.
  • Aluminium is fully recyclable
  • Products manufactured from aluminium are very
    long-lasting and durable.
  • Producing aluminium is energy-intensive, but used
    aluminium can be easily melted down and reused
    100. Only 5 of the energy is consumed here!
    Remelted/recycled aluminium is the equal of
    primary aluminium in every way.

12
Aluminium Suppliers In UAE
  • Al Hilal Engineering Equipment Est
  • P.O.BOX 25996, MUSSAFAHABU DHABI , U.A.E 971 2
    555 2377 971 2 555 2388sales_at_ahe.aewww.ahe.ae
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