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EuroWire – May 2007

20

english corporate news

Wuhan Iron & Steel in Wuhan, China, has successfully produced the first coil on the

continuous annealing line supplied by SMS Demag AG, Germany.

The line at Wuhan is designed for the production of strip in widths of 900 to 2,080mm

and in gauges of 0.3 to 2.5mm. An annual production of 990,000 tons is generated with

a maximum process speed of 450m/min.

The steel stripes in the grades ULC (IF), HSS, BH, DP, PMK and TRIP with low

carbon content are mainly used in the automotive industry for the manufacture of

domestic appliances.

The SMS Demag supply scope comprises not only the mechanical and process-

engineering equipment but also the Drever vertical furnace with modern annealing

and cooling technology. The essential process stages include strip degreasing,

recrystallisation annealing with controlled strip cooling, and skin passing to obtain

differing degrees of surface roughness and controlled elongation.

The trimming shear cuts the strip to the required final width and the strip surface is

oiled electrostatically. The inline six-high skin-pass mill stand is equipped with hydraulic

adjustment, work-roll and intermediate-roll bending, and intermediate-roll axial shifting

with CVC plus® technology.

High quality grades can be achieved for the products and, in conjunction with the

flatness measurement system, WISCO obtains very good results as regards strip flatness

and surface quality with these facilities.

The fully automated work-roll and intermediate-roll changing device allows very quick

roll changing to be performed without interrupting continuous operation in the process

section of the plant.

An inspection loop accumulator makes it possible to bring the exit section to a

complete halt to allow visual inspection of the strip surface without needing to stop the

mill stand.

The special technology of the trimming shear with its rotating shear housings enables

the knives to be changed while the strip is running. The DUMA oiling machine is able to

apply two different types of oil.

SMS Demag AG – Germany Fax

: +49 211 881 4386

Email

:

info@sms-group.com

Website

:

www.sms-group.com

l

First coil at China plant

ACID-FREE

PROCESS FOR STEEL

ROD CLEANING & SURFACE

PREPARATION”

“New Way to Draw Steel Wire

in the 21

st

Century”

DCCD process features:

• Eliminates acid, borax and precoatings

• Zero energy consumption

• Direct drawing from bare rod with no

speed limitation, for H/C and L/C

• New Lubricant Viscosity Control

provides exceptionally adherent coating

• Adjustable lubricant residual

• Zero lubricant waste

• Recommended for severe drawing

applications (spring, rope, bead,

CO

2

welding, PC strand, plating quality)

• H/C wire drawn at 18 m/s (3600 ft/min)

• Up to 8 times longer die life

• Exiting wire temp. 45°C (113°F)

• Greatly improved wire ductility

DECALUB

31, avenue de Condé

77500 CHELLES, FRANCE

Fax: +33 1 60 20 20 21

E-mail:

info@decalub.com

Website:

www.decalub.com

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