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September 2013 71
Technology News
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Aluminium round
and PFC tubing
PARALLEL flow condenser (PFC), multi
port extrusion (MPE), micro-channel
and multi-void are all names given to a
type of aluminium tube in great demand.
These flat aluminium tubes are
generally used in the automotive
industry for the production of heat
exchangers, condensers, evaporators,
radiators, oil coolers, heater cores
and CO2 applications. The tubes offer
high corrosive resistance, good heat
conductivityandhighpressure resistance,
and are cost effective if extruded from
a standard aluminium rod. The tubes
are extruded in various different sizes
and alloys in accordance with standard
specifications and regulations.
The automotive industry is continuously
seeking and developing more efficient
parts to achieve a lighter vehicle and
lower CO2 emissions. Aluminium round
and PFC tubing are playing a large part
in achieving these goals.
BWE Ltd is a British engineering
company specialising in continuous
extrusion machines (Conform™ and
Conklad™) and cold pressure welders
for many different applications.
Conform and Conklad are established
continuous extrusion technologies in the
non-ferrous, cable and tube industries.
Typical applications include copper and
aluminium rectangular wire (magnet
wire for transformers), solid aluminium
conductor (SAC for cables), copper
bus bar, trolley wire and other shaped
conductors, AS wire, OPGW, CATV,
round refrigeration tube and multi-
channel PFC tubes in different alloys.
A new Conform S315i model has been
specifically designed to extrude either a
round or multi-channel PFC tube from
the same aluminium rod (9.5mm, 12mm
or 15mm diameter). One customer
purchased a total of ten lines from BWE
specifically for this application.
With simple tool changes, the same
machine is capable of extruding solid
aluminium or copper conductors,
making it very flexible.
BWE has production experience of a
wide range of PFC sizes (10 to 105mm),
hole shapes (round, square, triangular,
with internal fins), and alloys (1000
series, 3000 series and special alloys).
With the introduction of the company’s
Induction Heated Tooling System,
production efficiency has improved. A
reduced pre-heat time and a constant
high temperature are possible, which in
turn reduce the risk of thermal damage to
the delicate and complex mandrel during
start-up.
BWE Ltd – UK
Fax: +44 1233 630670
Email:
Website:
BWE Conform lines in production for
PFC and round aluminium tubes