ArcelorMittal RUHRORT

ArcelorMittal RUHRORT
The world’s most modern wire rod mill
PLANT DATA
Products
Wire rod with diameters between 5.5 mm and 25 mm
Capacity
690,000 t/a
Special features
6+4-stand wire rod finishing block arrangement for temperature-controlled rolling,
equipped with MEERdrive® individual roll drive system
4-stand block of MEERdrive® PLUS design for rolling speeds up to 120 m/s
104 m long loop cooling conveyor LCC® with 3-fan technology
Thermomechanical rolling with CCT® modell
PROJECT DATA
Customer
ArcelorMittal Duisburg GmbH
Location
Duisburg-Ruhrort, Germany
Commissioning
2012
INNOVATIVE STRENGTH
Setting new standards for processes and products
The automotive industry is one of the most discerning customers in the steel industry. It makes very high demands on
quality and is permanently in flux. The European carmakers
are constantly on the lookout for new, even better solutions.
Suppliers who share this passion to innovate with their processes and products have a clear advantage on the market.
Just like ArcelorMittal in Duisburg.
technologies and processes. As the plant is set up in a
densely populated area, special attention was paid to noise
control.
LAYOUT OF THE PLANT IN DUISBURGRUHRORT AND CORE COMPONENTS
THE WORLD’S MOST MODERN
WIRE ROD MILL
In spring 2012, ArcelorMittal will be commissioning a
completely new wire rod mill in Duisburg-Ruhrort that can
produce 690,000 tonnes of wire rod per year with just one
strand. The mill will replace the 50 year old plant in DuisburgHochfeld and is the world‘s most modern wire rod mill. It
has been designed to roll technically demanding wire rod
grades, which are therefore of extremely high quality, to the
closest of tolerances. The new mill also sets standards with
respect to sustainability with particularly energy-efficient
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THE BENEFITS AT A GLANCE
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Outstanding surface quality and microstructure
properties of the products
High flexibility so that even small lot sizes can
be produced cost-efficiently
High productivity
Low operating costs
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Furnace
HL stands
CL stands
Cooling and equalizing loop
MEERdrive® block
MEERdrive® PLUS Block
LCC® with 3-fan technology
Coil handling facilities
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TECHNICAL HIGHLIGHTS
Top quality right down the line
ArcelorMittal’s new mill from SMS Meer allows temperature-controlled rolling of wire rod in the whole size range
from 5.5 mm to 25.0 mm – and that at a maximum rolling
speed of up to 120 m/s. The company thus has a leading
position as supplier of rolled wire rod for automotive
engineering, machine engineering, offshore technology,
plants for renewable energies and connecting elements.
6+4 WIRE ROD BLOCK CONFIGURATION:
TEMPERATURE-CONTROLLED ROLLING
The finishing block is divided into two parts: A 6-stand and a
4-stand finishing block. Intermediate cooling guarantees
that the wire rod has a temperature of up to 750°C before it
enters the 4-stand finishing block. The loop technology from
SMS Meer thereby ensures a homogeneous cross-section
temperature with a very low temperature coefficient. That
makes thermomechanical rolling possible for all wire rod
sizes. The optimum system parameters are simulated
offline with the CCT® process model and controlled online
during rolling.
MEERDRIVE®: CONTINUOUS SAVING
AND OPTIMISATION
Both wire rod blocks are equipped with the innovative
MEERdrive® individual drive technology in which each roll
ring pair is driven by a dedicated motor. That reduces
maintenance and the operating costs of the high-speed
section by around 30%. Furthermore, MEERdrive® enables
greater flexibility in the pass sizing. Depending on the
demands on the process or the steel grade, different
cross-sectional reductions can be rolled. The sizing and the
reduction ratios can be adapted individually at any time,
even long after commissioning, e.g. in order to allow new
materials to be rolled in future. With the conventional mill
block that is not possible. The rolling speed and tension can
also be individually controlled and optimized with MEERdrive®.
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LCC®: SELECTIVE SETTING OF MATERIAL
PROPERTIES
In order to selectively achieve the desired material properties with different steel grades, ArcelorMittal takes a
number of factors into consideration during the rolling
process such as rolling temperature, cooling settings,
equalizing loops and transport speed on the loop cooling
conveyor LCC®. The LCC® located at the end of the rolling
line is furthermore equipped with the modern 3-fan technology: Three individually controlled fans per transport segment supply the optimum amount of air to the windings.
During “forced cooling”, the covers of the LCC® are open
and up to 30 fans operate at full power to set the desired
material properties. The material cools as quickly as possible
and a fine laminar pearlitic microstructure is formed.
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SMS MEER GMBH
Business Unit Long Products Plants
Ohlerkirchweg 66
41069 Mönchengladbach
Phone: +49 2161 350-1724
Fax: +49 2161 350-1753
[email protected]
www.sms-meer.com
The information provided in this brochure contains a general description of the performance characteristics of the products concerned. The actual products may not always have these characteristics as
described and, in particular, these may change as a result of further developments of the products. The provision of this information is not intended to have and will not have legal effect. An obligation to
deliver products having particular characteristics shall only exist if expressly agreed in the terms of the contract.
D3401.05/15 en · Printed in Germany
Germany