Page 59 - Steel Tech India eMagazine Volume April 2022

VOL. 16 • NO. 3 • April 2022

Primetals Technologies receives final acceptance Primetals Technologies receives final approval on
for revamping continuous pickling line at Okayama drives upgrade for Nucor Steel Arkansas hot strip
plant of Tokyo Steel mill
Primetals technologies recently received the final Primetals technologies has received the Final
acceptance certificate (FAc) for revamping the Acceptance certificate (FAc) for its F5 and F6 main
continuous pickling line for hot-rolled strip at the drive upgrade project with Nucor Steel Arkansas of
Okayama plant of tokyo Steel co., ltd. the project Armorel, Arkansas. this completes the third phase of
included installation of a polypropylene iBox pickling the total project: full replacement of the hot strip mill’s
tank with acid concentration control, and the addition of six main mill stand drives.
a 50-ton tension leveler type scale breaker. An energy- the main challenge in replacing the drives was to
saving, high-efficiency pickling system, the iBox has execute the changeover within the customer’s nine-
been delivered to 23 integrated steel plants worldwide. day maximum outage time. to meet this extremely tight
the system installed at tokyo Steel’s Okayama plant timeline, the very large drives had to include identical
achieves the same productivity at hot descaling and take-over points for all existing, equally large cables.
reduction in energy consumption with both integrated the new Siemens Sinamics Sl 150 drives also needed
and eAF based steel plants.
to start up and achieve full production immediately,
Fushun Special Steel orders Danieli Super Alloys without any ramp-up time. the team achieved hot
Rolling Mill commissioning 15 hours ahead of schedule.

chinese special steel and superalloy leader Fushun Scrap Processing: A Profitable, Ecological Deal
Special Steel, contracted Danieli for the supply of new Over the last twelve months, many scrap processors
long-product rolling mill for top-quality products.
have selected Danieli centro Recycling efficient and
to be installed in, Fushun city, liaoning province, durable technologies for steel and nonferrous scrap
the mill has been designed to guarantee the tightest processing.
tolerances (0.1 mm on 5,5-mm-dia wire rod), fine grain Six shears, six pre-shredders and four shredder projects
size and wide mechanical properties.
have been ordered from Danieli from customers in
high product quality and high material yield will be several continents, confirming the technology and
achieved through strict process control and fully equipment reliability of the Danieli scrap-processing
integrated Danieli Automation system. plants for plant upgrading, replacing old equipment with
new ones and capacity expansions.
the new Fushun Special Steel plant, entirely supplied
by Danieli, will produce 80 Mtpy of special steel and the ordered side-reducing, press-wing, and inclined
super alloy bars from 8 to 98 mm, wirerod from 5,5 shears have cutting capacities ranging from 700 to
to 25 mm flats from 32x6 to 65x40 and from 65x6 to 2000 tons, with the inclined shears featuring the new
105x10 mm. the main equipment of the bar and flats Danieli automatic blade-changing system.
rolling mill consists of a shiftable breakdown mill, twenty Six pre-shredder projects prove the willingness of
GCC housingless stands in vertical, horizontal and scrap makers in Australia, North America and UK to
convertible configuration. the wirerod mill will feature expand production capacity, adding production power
a 6-passes pre-finishing block, a tMB multidrive and a to their existing plants. Pre-shredders are ideal for car
laying head equipped with oil-film bearing rotor.
and high-density bale processing.
With present steel capacity 950,000 tpy, Fushun Four shredder projects have been awarded from
Special Steel (Shagang Group), occupies more than customers in the Americas, North and South. All of
80% of domestic market share for superalloy and 95% these will feature the energy-saving Danieli Automation
for ultra-high strength steel in aerospace and aviation patented inverter package.
field.
Steel tech 57