KALEXCO


KALEXCO
is committed to provide products and services of a quality that meet the initial
and continuing needs and expectations of customers in relation to the price
paid and to the nature of competitive offering and in doing so to be leader in
product quality reputation. It is the policy of the company that its products
shall meet all specified and implied standards of performance, reliability and
quality
Aluminum’s
versatility derives from its unique combination of properties: it is light and
has a high strength-to-weight ratio (up to four times higher than steel), as
well as superior corrosion resistance, good thermal conductivity and excellent
low-temperature performance. A wide range of Aluminium alloys and tempers are
available that can be matched to any machining operation, manufacturing
process, finishing method or product.
Due to its excellent ductility at elevated temperature, Aluminium is well
suited for shaping by the extrusion process - additionally, the extrusion
process is very versatile allowing an almost unlimited variety of shapes to be
produced. This combination of metal and manufacturing process offers designers
a freedom from shape restriction that is unparallel among structural materials.
Aluminium extrusions are used in commercial and domestic buildings for window
and door frame systems, curtain walls, exterior cladding, balustrades, roofing,
awnings, blinds, gutters and down pipes, fencing, wall panels, partitions,
heating and ventilation, scaffolding, ladders as well as many architectural
applications. Furthermore, extrusions are also used in transport for airframes,
road and rail vehicles and in marine applications. There are a wide range of
other applications including electrical appliances, lighting equipment and
sporting goods.
The term extrusion is usually applied to both the process and the product
obtained when a hot cylindrical billet of Aluminium is forced through a shaped
die (See Figure 1).

The most commonly used extrusion process is the hot direct process - where a
heated billet (450ºC - 500ºC) is forced through the die by a
hydraulic ram. The cross-sectional shape of the extrusion is defined by the
shape of the die. The resulting section can be used in long lengths or cut into
short pieces for use in structures, vehicles or components.
P. O.
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