LONG PRODUCTS BULLETIN - SMS Meer GmbH

Commissioning
26 Newsletter 1/2010
Minimills for Long Products
Combi-caster casts several formats at the same time
Siam Yamato, Thailand: Minimill for
medium steel sections in operation
Commissioning of five-strand combi-caster for
seven different billet/bloom formats and beam blanks.
In October/November 2009, Siam Yamato Steel Company (SYS) started production
of medium steel sections at its new minimill in Rayong, Thailand. First, the mediumsection
rolling mill supplied by SMS Meer was commissioned, followed by the meltshop
and the five-strand combi-caster supplied by SMS Concast. The first heat was
cast on all five strands with a common casting size of 200 mm x 230 mm. After that
also blooms of 230 mm x 450 mm casting size were successfully produced on the
new combi-caster.
Steelworks for 700,000 tpy. The steelworks
and rolling mill have been designed
in such a way that the billets and blooms
produced in the steelworks can be directly
hot-charged into the rolling mill. The new
steelworks has a production capacity of
700,000 tpy. It features an 80-t electric arc
furnace, a ladle furnace and a combination
caster.
Low energy consuming EAF. The electric
arc furnace is equipped with the latest
generation of Conso oxygen technology.
This technology reduces electrical energy
consumption while enhancing the productivity
of the furnace. The dedusting
system for the meltshop conforms with
the high applicable clean-air standards.
Seven billet/bloom formats plus beam
blanks. The combi-caster is a new development
by SMS Concast. This is the first casting
machine enabling different billet and
bloom formats to be cast at the same time.
A total of seven different billet/bloom formats
can be cast, ranging from 130 mm x
130 mm to 230 mm x 450 mm. If required,
the plant can even be converted to beam
blank production.
Medium section mill for 400,000 tpy. The
semi-continuous medium section mill supplied
by SMS Meer, for an annual production
of 400,000 t of final products, is intended to
produce steel sections from 100 mm x 50
mm to 350 mm x 175 mm as well as channels
and angles. Adding rounds and flats to
the product range at a later stage is possible
within the framework of a future expansion
project. The mill features a 130-t/h walkingbeam
furnace, a two-high reversing roughing
stand as well as a continuous finishing
train made up of nine roll stands, six of
which being universal/two-high stands. The
roll stands are modular compact stands in
CS design. They are interchangeable and
can be used alternatively as horizontal/vertical
or universal stands.
Overall planning. The overall planning of
the works was realized jointly by SMS Concast
and SMS Meer. The successful commissioning
of the meltshop and the rolling mill
is a demonstration of the SMS group’s competence
and innovative power in the longproducts
sector.