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Wire & Cable ASIA – May/June 2009 46
PC strand production
GCR Eurodraw designs and
installs complete PC strand
production plants. PC strand
is used as a reinforcement
material in pre-stressed concrete
beams and other applications
for the construction of concrete
structures such as bridges and
buildings.
A PC strand plant includes:
The wire rod batch pickling •
and coating plant
The wire drawing equipment •
The stranding and stress- •
relieving line
Pickling and coating is the
first step in the production of
pre-stressed concrete strand.
This step is necessary to clean
and coat the wire rod surface, so
that it can then be drawn down
efficiently and economically.
The plant is composed of wire rod
storage stalls, followed by tanks
containing the chemicals and
rinse water to clean and coat the
rod. An automatic bridge crane picks up the coils and dips them in sequence in a rinsing tank, a sulphuric acid tank, a zinc
phosphate tank and finally into a lime coating tank.
This environmentally friendly plant is equipped with all the fume abatement devices, acid regeneration and effluent water
treatment equipment to assure that there are no hazardous emissions.
GCR Eurodraw SpA – Italy Fax: +39 029354 0452
Email: Website:
Coating for construction
Italian company, IFP manufactures patented steel wire and wire rod (galvanised and Zn/Al alloy coated). Top quality, and
with a diameter range of 1.4mm to 16mm, cables and ropes are supplied to end users for offshore cable, bridge ropes and
in high tensile structures.
The main plant includes two continuous lines from
Belgium’s FIB, with a patented heat treatment and
lead cooler system; also pickling, phosphate and
galvanising systems to suit the highest international
technical standards.
The galvanising line can process rod diameters
up to 16mm and wires up to 10mm with a wiping
system using nitrogen calibration.
Final wire tensile strength can be higher than
2160Mpa.
Since 2007, IFP has used a Zn/Al (95% Zn / 5% Al
alloy) coating for high wire corrosion protection on
wires from 2mm to 8mm diameter.
IFP srl – Italy
Fax: +39 0364 592420
Email:
Website:
PC strand production line ❍ ❍
Wire coils in a range of size and finish ❍ ❍