OAO Chelyabinskii Metallurgicheskii Kombinat

Chelyabinsk, Russia

OAO Chelyabinskii Metallurgicheskii Kombinat

Chelyabinsk, Russia
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Rifel' A.A.,OAO Chelyabinskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2013

Calculation of the properties of low- and moderate-alloy structural steel is possible by modeling the decomposition kinetics of supercooled austenite at constant temperature and in continuous cooling. A model for predicting the microstructure of steel is derived by means of an artificial neural network of GRNN type. Calculation of the hardenability curve on the basis of microstructural modeling is described. © 2013 Allerton Press, Inc.


Bochkarev S.P.,OAO Chelyabinskii Metallurgicheskii Kombinat | Fomchenko S.M.,OAO Chelyabinskii Metallurgicheskii Kombinat | Makarevich A.N.,OAO Chelyabinskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2013

At OAO Chelyabinskii Metallurgicheskii Kombinat, a production technology for high-quality, low-carbon, and low-silicon steel capable of deep extrusion (08Yu{cyrillic}, 18Yu{cyrillic}A, 08πc and similar steel) has been developed and introduced. Continuous-cast slabs are produced by means of the following system: an arc furnace, a ladle-furnace unit, and a continuous-casting machine. Appropriate engineering measured for the production of such steel slabs have been developed. © 2013 Allerton Press, Inc.


Rezvov B.S.,OAO Chelyabinskii Metallurgicheskii Kombinat | Bobylev E.V.,OAO Chelyabinskii Metallurgicheskii Kombinat | Mal'tsev P.A.,OAO Chelyabinskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2013

A new production technology for bales of reinforcing steel 12 has been developed and introduced for the wire mill at OAO Chelyabinskii Metallurgicheskii Kombinat. That expands the product range and makes better use of the mill's capabilities. © 2013 Allerton Press, Inc.


Kazantsev E.A.,OAO Chelyabinskii Metallurgicheskii Kombinat | Korolev V.E.,OAO Chelyabinskii Metallurgicheskii Kombinat | Barinov V.K.,OAO Chelyabinskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2013

In tests at OAO Chelyabinskii Metallurgicheskii Kombinat, up to 40% AMSSh anthracite has been included in the solid fuel for sinter production. That offers a means of compensating for the shortage of coke fines in sinter production, without additional expense and without loss in sinter quality. © 2013 Allerton Press, Inc.


Polyakov N.S.,OAO Chelyabinskii Metallurgicheskii Kombinat | Bloshkin S.B.,OAO Chelyabinskii Metallurgicheskii Kombinat | Beseda R.E.,OAO Chelyabinskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2013

After tests at OAO Chelyabinskii Metallurgicheskii Kombinat, a new protocol has been introduced for blast-furnace charging. The proposed cycle consists of several mixed deliveries (ore + coke) and finally the delivery of several charging ladles with a single type of coke. This protocol has now been introduced at all three blast furnaces, with decrease in coke consumption and increase in furnace productivity. © 2013 Allerton Press, Inc.


Tokovoi O.K.,South Ural State University | Shaburov D.V.,OAO Chelyabinskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2013

The variation in nitrogen content in austenitic stainless steel during smelting is investigated. A slag composition is proposed for the assimilation of titanium inclusions from the stainless steel. Experiments show that slag in the CaO-SiO2-MgO-Al2O3-TiO2 system is able to absorb up to 14.1% of the titanium oxides in the tundish, with corresponding decrease in the content of nonmetallic inclusions in the steel. © 2013 Allerton Press, Inc.


Tokovoi O.K.,South Ural State University | Shaburov D.V.,OAO Chelyabinskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2014

Nonmetallic inclusions in cast and rolled samples of 03X18H10 and 08X18H10T austenitic stainless steel are studied by scanning electron microscopy. In titanium steel, aggregates of titanium nitrides and oxides of different grain size are located around the globular inclusions with the deposition of secondary phase. The inclusions in titanium-free steel are predominantly globular and are complex oxygen compounds. In 03X18H10 steel, there are no large aggregations of nonmetallic inclusions; that results in better surface quality of the cold-rolled sheet. The surface of cold-rolled 08X18H10T steel includes large defects in the form of flakes consisting of titanium nitrides and slag-forming mixture. © 2014, Allerton Press, Inc.


Tokovoi O.K.,South Ural State University | Shaburov D.V.,OAO Chelyabinskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2015

The nonmetallic phase in 08X18H10T and 03X18H10 vacuum-treated austenitic stainless steel is investigated by means of a scanning electron microscope. The composition of the nonmetallic inclusions in cast samples of metal from the casting ladle, the vacuum unit, and the continuous-casting machine and samples of cold-rolled sheet (thickness 1.2 mm) is studied. In 08X18H10T steel samples from the tundish of the continuous-casting machine, the nonmetallic phase consists mainly of titanium-nitride aggregations, the crystals of which contain oxides of aluminum and titanium; a few of the nonmetallic inclusions are small globules with a titanium-oxide shell. In cold-rolled sheet, the nonmetallic inclusions are distributed over the whole cross section and consist of small (5–6 μm) crystals of titanium nitrides. Cast samples of 03X18H10 austenitic titanium-free steel are relatively free of nonmetallic inclusions. The nonmetallic phase consists mainly of small inclusions of alumocalcium silicate. In cold-rolled sheet (thickness 1.2 mm), the nonmetallic phase consists of a few very small globules (2–3 μm). The results are compared with the composition of the nonmetallic phase in analogous steel with no vacuum treatment. © 2015, Allerton Press, Inc.


Maksimov E.A.,ZAO Intrai | Babkin A.G.,OAO Chelyabinskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2011

Traditional measures of the planarity and rectilinearity of rolled strip and sheet are considered. A new kinematic assessment is proposed. © 2011 Allerton Press, Inc.


Butkarev A.A.,OAO VNIIMT | Butkarev A.P.,OAO VNIIMT | Ptichnikov A.G.,OAO Chelyabinskii Metallurgicheskii Kombinat | Tumanov V.P.,OAO Chelyabinskii Metallurgicheskii Kombinat
Steel in Translation | Year: 2015

Thermal analysis of the air heater for 2038-m3 blast furnace 1 at OAO Chelyabinskii Metallurgicheskii Kombinat confirms that the hot-blast temperature may be increased by at least 30–40°C on introducing an optimal control subsystem designed by OAO VNIIMT. This reduces expenditures on coke by 75 million rub/yr. © 2015, Allerton Press, Inc.

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