STEEL + TECHNOLOGY 01/2020 EXTRACT

NEWS ROUND-UP | 17
mill, six housingless SHS 180 rolling
stands complete with a table for quick
stand-changing, a 6-pass Delta-type finishing
block driven by a low-voltage 2.5
MW motor, and finishing services. Different
cooling set-ups are implemented for
the bar head and tail by means of the Level
1 automation system while the perfect
and regular distribution of the hot-rolled
bar is achieved by the Q-VID Spool. The
mill started up seventeen months after the
contract award date.
• Danieli
U. S. Steel to upgrade slab caster with new flow technology
Danieli is going to convert the C Line
caster at U. S. Steel’s Gary Works to new
flow technology.
At the end of 2016 U. S. Steel entrusted
Danieli to replace the stopper-rod
control system together with the
mould-level control sensors and automation
at its Great Lakes and Gary
Works. Both plants, which operate
one double-strand slab caster and
two single-strand slab casters (A-Line
and B-Line), feature improved casting
process stability after the installation
of Danieli HY-POWER ® electrohydraulic
stopper actuators to regulate the
steel flow, eddy-current double-coil
sensor for a precise measurement of
Tundish stopper-rod control system. (Picture: Danieli)
the mould level, and the Q-Level+
automation package for fine control of
the entire system. U. S. Steel has
reconfirmed its trust in Danieli by the
decision to convert the C-Line caster
at the Gary Works to the same flow
technology.
• Danieli
CHINA
Yunnan Qujing Chenggang invests in new high-speed bar mill
Yunnan Qujing Chenggang Steel Products
has placed an order with Danieli for
a new, 1.2 million t/year high-speed bar
mill.
For the new mill, Danieli will install four
SHS housingless stands followed by two
six-pass wirerod blocks and, for large
product sizes, two additional SHS stands.
The mill will produce 8 to 40 mm diameter
rebar and round bar, in grades HRBF
400E - 500E at rates of up to 200 t/h,
starting with 165 mm billets weighing
2,500 kg.
Rebars from 8 to 22 mm will be rolled
via an advanced multi-strand slit-rolling
system on two strands at finishing speeds
of up to 45 m/s. The plant will also feature
an on-line water-cooling system, double
high-speed twin channel system and a 120
m x 14 m cooling bed.
• Danieli
Tangshan Reafon and Hegang Laoting order sublance systems for BOF shops
Danieli Corus has signed two contracts
for a total of four sublance systems to be
installed in China.
Tangshan Reafon Iron & Steel has contracted
Danieli Corus to implement a sublance-based
BOF process control system including a process
model for one of the 210 t converters at
the Tangshan, Hebei plant. Hegang Laoting has
ordered three sublance systems complete with
a process model and a slag control system for
the 120 t converters of BOF shop No. 2 at their
plant in the Laoting Economic Development
Area in the Hebei Province. This order follows
the supply of three systems for Hegang Laoting’s
BOF shop No. 1 in 2018 and 2019.
• Danieli Corus
STEEL + TECHNOLOGY 2 (2020) No. 1