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Wire & Cable ASIA – January/February 2009 52
Furnace specialist, QED
QED Wire Lines Inc is a long-standing
specialist in furnaces for heat-treating
and coating steel wire, where multiple
strands travel through the equipment
at relatively high speeds.
To improve efficiency, and minimise
environmental concerns, QED has
developed the dual loop pressure
control system – a new system of
burner control that maintains a close
air to gas ratio while allowing for
stopping and starting burners without
changing ratios.
This system has proved so successful
that the company has received a US
patent for the technology.
QED Wire Lines now uses this
combustion control system on all
multiple burner furnaces such as oil
temper lines, patenting and autenitising
furnaces as well as galvanising and
Galfan coating furnaces.
Another specialism is the Fluidbed
heat-treating furnace, a technology well
proven for in-line annealing, stress relieving, tempering and quenching. For increasing numbers of users who run their lines
twenty-four hours a day, seven days a week, even small maintenance items can be a problem. With QED design these
maintenance areas are all but eliminated.
New QED furnaces have a fuel injection system that avoids the need for distribution plenums, porous bases and a new
proportional control system to improve efficiency. The previous heat loss problems, due to poor sealing of the threading
openings, have been eliminated with a new labyrinth seal system. The improved design minimises sand drag out and greatly
improves the sand handling technology. In a niche market, all furnaces are custom designed to suit the individual user and
application.
QED Wire Lines Inc – Canada Fax: +1 450 458 0200
Email: Website:
QED galvanising line uses the dual loop pressure control system ❍ ❍
New heat treatment range
ILES Srl presents a new range, Combinat heat treatment equipment.
The basic equipment provides the
following standard units:
The units are connected by an external
structure, on which runs a shuttle to
transfer the charge.
ILES Srl – Italy
Fax: +39 0373 750110
Email:
Website: The Combinat heat treatment range ❍ ❍
electric hardening furnace, •
for treatment under protective
atmosphere
electric pre-heating and tempering •
furnace, with forced air circulation
dynamic quenching tank •
washing machine with alkaline •
solutions