The Vth International Conference of Refractorists
and Metallurgists of Ukraine and Russia
RENEWED STOCK OF THE “BOROVICHI REFRACTORY WORKS” JSC
V. P. Migal’
and A. V. Mozhzherin
Translated from Novye Ogneupory, No. 12, pp. 62 – 64, December, 2007.
Not many enterprises live such a long and fruitful live as
the Borovichi Refractory Works (BRW). The plant has with
stood many trials, including the hard times of the perestroika.
The enterprise has overcome the difficulties and reached the
position of a leader of the refractory industry of Russia. To-
day’s successes are a result of the successful policy of the
board of directors and of the management of the plant aimed
at expanding and diversifying the production and creating
conditions for creative labor of all workers.
In the 19th century the Borovichi Refractory Works pro-
duced substitutes for bricks imported from Great Britain.
Persistent effort aimed at advancing the existing processes
and developing new ones has made it possible to bring to
market articles that are in greater demand than imported
ones. The task is solved successfully by the research depart
ment of the enterprise, i.e., the Center for Advancing the Pro
cesses and the Production (CAPP). The Center employs
trained personnel (65 qualified workers of which 34 are engi
neers and 3 are candidates of engineering science) and ap
propriate domestic and imported equipment.
The range of products of the BRW is renewed every year.
In recent years the plant has started production of articles for
continuous casting of steel, articles from low-cement refrac
tory concretes, periclase-spinel refractors, refractory con
cretes, lightweight chamotte structural articles, large bocks
for glass-melting furnaces, checker firebricks for glass-fur
nace regenerators, refractories for the aluminum industry,
and bitstone. A complete set of refractories for continuous
casting of steel produced by the BRW includes ladle
(steel-teeming) nozzles, shuttle plates, header nozzles, tubes
for protecting the metal jet from secondary oxidation in the
region between the steel-teeming ladle and the tundish ladle
of CCM, single-block stoppers, articles and mixes for control
and working layers of the lining of tundish ladles, articles for
organizing metal flows in tundish ladles, nonswirl nozzles,
and immersion nozzles.
Single-block stoppers. These articles are produced by a
specially developed process and by a process similar to that
used by the leading world producers. Depending on the ope-
rating conditions the stoppers have different configurations
and differ in the material of the head part (corundum-gra-
phite or periclase-carbon) and fastening (metallic nut, ce-
ramic insert, thread inside the stopper, splint).
Pipes for protecting metal jet. Pipes with corundum com-
position for protecting metal jet are produced using novel
processes from powdered fused corundum of various frac-
tions, graphite, and special additives that raise the heat resis
tance and wear resistance of the articles. Pipes of grade
KGTU for ensuring the specified resistance of articles have a
reinforced slag-line composition.
Immersion nozzles. The nozzles have a corundum com
position and are produced by novel methods ensuring heat
resistance and wear resistance of the articles. Depending on
the service conditions and design and on the process charac
teristics of the customer equipment the immersion nozzles
have different configuration (cocurrent, solid-bottom with
different numbers and directions of outlet holes), and dif
ferent chemical and mineral compositions (the slag line, the
coating of the internal channel).
Ladle nozzles. Two types of ladle nozzles are produced,
i.e., KBT carbonless grades from thixotropic concrete and
MKU-80 carbon-bearing mullite-corundum-carbon grades.
The nozzles of grade MKU-80 are used for operation under
more stringent conditions.
Header nozzles. The CAPP of the BRW has developed a
process for fabricating carbon-bearing header nozzles of
grade MKU-80. When tested at various plants the internal
channels of the nozzles exhibited no erosion or closure.
Refractories and Industrial Ceramics Vol. 48, No. 6, 2007
1083-4877/07/4806-0444 © 2007 Springer Science+Business Media, Inc.
“Borovichi Refractory Works” JSC, Russia.