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Elektrometallurgiya №12'2009 |
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| Table of contents
Production of ferrous metals. Subject collection of "Gas content and quality of metal"
- Metal desulfurization with manganese in process of direct alloying Nakonechnyj, A.Ya.; Urtsev, V.N.; Sinyakov, R.V.; Kabibulin, D.M.; Kudrin, V.A.; Shmakov, A.V. , 2
Problems in metal desulfurization in process of its
direct alloying with manganese by means of manganese sinter and
aluminium adding to ladle during metal tapping from steelmaking
unit have been considered. According to calculation and
experimental data, desulfurization degree is 30-35% at Mn
content of 0.5% and reaches 60% at Mn content more than 1%.
Keywords: direct alloying with manganese, metal, slag,
desulfurization degree.
Electrothermal equipment
Casting and crystallization of metal
- Improvement in service life of moulds for casting the copper and its alloys Smirnov, A.N.; Spiridonov, D.V. , 11
Peculiarities in operation of moulds for casting the
copper and its alloys at semi-continuous casters during slab
production have been considered. It has been shown that in order
to improve service life of the mould plates, it is necessary to
make internal cavity with certain taper taking into account the
slab shrinkage during its movement in the mould. Intensity and
uniformity of heat transfer should be improved in this case. The
mould test has shown that its service life is increased by
factor of 4.0-4.5.
Keywords: copper and its alloys, continuous casting, mould
service life, taper.
Theory of metallurgical processes
- Thermodynamics of melts based on titanium. Part 3. Nitrogen, sulfur and phosphorus in liquid titanium Belyanchikov, L.N. , 16
On basis of quasiregular solution theory, method of
recalculating the thermodynamic parameters has been used for
determining the characteristics of titanium alloys using data on
iron alloys. Variation of Gibbs free energy during dissolution
of sulfur, nitrogen and phosphorus in liquid titanium as well as
during reactions of nitrides, sulfides and phosphides formation
in liquid titanium and their decomposition has been determined.
It has been shown that nitrides of all elements are thermodynamically
instable in liquid titanium. Formation of sulfides of Ba, Ca, Sr in
liquid titanium is possible.
Keywords: titanium based alloys, thermodynamic characteristics,
solutions, Gibbs free energy.
Production of ferroalloys
- Production and application of new complex boron-containing ferroalloys Kim, A.S.; Zayakin, O.V.; Akberdin, A.A.; Kontsevoj, Yu.V. , 21
Influence of steel microalloying with boron on its
properties has been investigated. Complex silicon-manganese-
boron-containing FSMB ferroalloy has been used in this case.
Structure and mechanical properties of the steel alloyed with
this ferroalloy are similar to those of steel alloyed with
ferroboron. Some characteristics of the steel are higher.
Keywords: boron-containing steel, ferroalloys, microalloying,
assimilation degree, mechanical properties, non-metallic
inclusions.
Resource saving
- Improvement in technology for processing the non-ferrous metal wastes to obtain quality secondary raw materials Gordeev, E.N.; Sergeev, S.V.; Chumanov, I.V. , 24
Method of grinding the non-ferrous metal wastes by
means of milling and controlling the oscillation movement of
the cutting tool has been described. The method makes it possible
to increase the non-ferrous metal chip yield by factor of 2-3.
Preset sizes and shape of the chips are provided.
Keywords: non-ferrous metal wastes, grinding, milling, cutting
tool, forced oscillations.
Ecological aspects of metallurgical production
- Ecological aspects of producing the secondary zinc Besser, A.D.; Paretskij, V.M. , 26
In the article, the main sources of zinc-containing
secondary raw materials have been described. Recycling of the
materials is possible. Sanitary standards of zinc and its compound
contents in production zone and atmosphere have been given. Areas
of the secondary zinc application have been shown.
Keywords: secondary zinc, recycling, ecology, maximum permissible
concentrations.
Methodological information
- Heat losses and energy efficiency of arc furnaces for foundry Mironov, Yu.M.; Petrov, V.G. , 30
For arc steelmaking furnaces with refractory lining,
dependence of heat loss power and energy efficiency on current
strength and arc length has been studied. Influence of heat loss
power decrease on the operating characteristics of the electric
furnace has been considered.
Keywords: arc steelmaking furnace, heat losses, current strength,
energy efficiency, operating characteristics.
Information materials
Reviews for books |
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| 105215, г.Москва, 9-я Парковая ул., дом 60
Тел./факс: (495)988-98-65, (495)988-98-67
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