EoW January 2010

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EuroWire – January 2010 27
technology news
To tackle the demands of lower costs
and improved machine performance
and finished wire quality, Frigeco (a
division of Mario Frigerio) has further
developed its TA copper and aluminium
rod breakdown machine with zero slip.
Conventional slip breakdown machines
can cause longitudinal friction – by the
wire sliding on the capstan – and axial
friction as the wire moves from wrap
to wrap on the capstan itself. Frigeco’s
TA zero slip rod breakdown machine
avoids friction between wire laps and
between wire and the capstan. An
independent AC motor for each drawing
block, with dancer synchronisation of
the wire/capstan speed, eliminates the
longitudinal slipping problem and avoids
longitudinal wire scratches.
In each drawing block the wire is wound
to a double capstan. The first pulling
capstan is motor driven while the second
idle capstan is slightly out of centre with
respect to the first. The idle capstan
prevents side sliding and drafting and so
avoids any axial wire scratches.
To prevent dangerous wire yielding,
the machine is also supplied with large
diameter pulling and idle capstans while
a high-pressure lubricant die holder and
efficient wire cooling help to achieve
high production speeds.
The advantages of the TA are said to
include:
Wire breaks are reduced when pro- •
duced wire is re-drawn
The machine is adaptable to most •
drawing ranges and wire elongations,
with inlet diameter from 8mm to
10mm and outlet diameter of 0.8mm
to 9mm
Reduced energy consumption •
The absence of slippage minimises •
pulling capstan wear, resulting in
low maintenance costs and reduced
downtime
Low noise, less than 80dBA •
Unused motors are switched off •
Mario Frigerio – Italy
Fax: +39 0341 368385
Email:
Website :
Zero slip rod breakdown
Dong Bei Special Steel has given an order to Mair Research for the supply of four
bar inspection and conditioning lines to process bars of engineering steels and
stainless steel. Two lines will process bars from 13mm up to 40mm diameter and
the other two lines will be up to 60mm diameter; the bar lengths will be from
4m up to 12m.
The main supply will consist in four 2-rolls straightening machines, Mair RMS2-40
and RMS2-60, four chamfering stations and three shot blasting machines.
The contract includes the engineering for the handling system and full automation
of the complete line. The delivery of the machine is expected to be in spring 2010
and the lines will come into full operation during summer 2010.
Mair Research SpA – Italy
Fax: +39 0445 634 409
Email:
Website:
Finishing lines contract
Frigeco’s TA rod breakdown machine ▲ ▲