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Wire & Cable ASIA – July/August 2008 30
Strander works at speed
The monobitorsion strander, based on a Cortinovis Machinery Patent, is a
high performance strander that combines the advantages of the single and
double twist stranding – the high quality of single twist with the high speed of
the double twist.
Its production range starts from 7 wires up to 61 wires unilay compacted or
compressed strands, with sections from 16 to 300mm2. It can handle
aluminium, aluminium alloy and copper wires with continuous pay off from
stem packs with automatic changeover or, if required, pay off from bobbins.
The tension of the wires is equalised in simple and efficient multiple
pneumatic brakes, making it possible to set up wire tension for each layer or
for each wire. A stationary die stand accommodates up to 61 wires, with 2, 3
or 4 lay plates and 1, 2 or 3 rotating driven or idle dies.
There is also the option of a rotating unit with 2, 3 or 4 pairs of compacting
rollers.
The rotating capstan, driven by an AC motor fitted in the rotating frame,
makes and precisely compacts the strand with its final lay and geometric
size. Every capstan turn gives one lay in the strand, as obtained with the
single twist process.
Double twist take up, that receives the strand already made in its final size
and lay, transfers it to the bobbin without giving any stress or variation in lay
and diameter. This is due to a patented system of driven rotating joints, at
inlet and outlet of the bows. On the bow the strand is guided with idle dies
that help to stabilise the strand.
The double twist take up includes the bobbin holding cradle, with feeding
capstan, traversing device, deviation pulleys and pneumatic pintles.
Cortinovis – Italy
Fax: +39 035 313211
Email:
Website:
Ultrasonic welding on show
SpliceRite™ Ultrasonic Wire Splicer took centre stage on the Sonobond
Ultrasonics stand at May’s Electrical Wire Processing Technology Expo in
Milwaukee, USA.
SpliceRite is designed to create
perfect solid-state metallurgical
bonds using the lowest possible
voltage drop and minimum energy
consumption. The unit eliminates the
need for clipping, soldering, crimping,
or dipping, quickly splicing wire
bundles without producing arcs,
sparks, or fumes, or melting the wires
and can accommodate tinned or
heavily oxidized wires.
The unit features a microprocessor
controller that can store and recall up
to 250 jobs by height, by energy, or
by time while producing welds.
Ultrasonic welding is environmentally
friendly, produces no waste, and is
economical to use.
Sonobond Ultrasonics – USA
Fax: +1 610 692 0674
Email: Website:
SpliceRite™ Ultrasonic Wire Splicer m m