OOO RUSAL ITTs

Novokuznetsk, Russia

OOO RUSAL ITTs

Novokuznetsk, Russia

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Kolonakov A.A.,OAO RUSAL Novokuznetsk | Kukharenko A.V.,OOO RUSAL ITTs | Deev V.B.,National University of Science and Technology "MISIS" | Abaturova A.A.,Siberian State Industrial University
Russian Journal of Non-Ferrous Metals | Year: 2015

The main requirements for the quality of aluminum alloys of the piston group are considered. The quality of the primary and secondary AK12MMgN alloy fabricated in conditions of various Russian producers is analyzed using the data presented by enterprises interacting with RUSAL in questions of manufacturing this alloy. The main ways to optimize the chemical composition of the AK12MMgN alloy implemented in conditions of OAO RUSAL Novokuznetsk are considered and substantiated and it is shown that other piston alloys with the required level of operational properties can be fabricated based on the AK12MMgN alloy. It is revealed that the quality of the AK12MMgN alloy produced based on the secondary materials under definite manufacturing conditions is no worse that the quality of this alloy produced based on the primary materials. It is noted that, when manufacturing the secondary piston alloys, attention should be paid to their obligatory modification in the liquid state (for example, by phosphorus) in order to approach the microstructure and level of properties in the cast state to alloys produced based on primary aluminum. Recommendations for enterprises, which allow one to produce AK12MMgN alloy with the required structure and chemical composition, are presented. © 2015, Allerton Press, Inc.


Strakhov V.M.,OAO VUKhIN | Surovtseva I.V.,OAO VUKhIN | Elkin D.K.,ZAO Kremnii | Elkin K.S.,OOO RUSAL ITTs | Cherevko A.E.,OOO RUSAL ITTs
Coke and Chemistry | Year: 2012

The industrial use of Kuznetsk Basin SS coal in silicon production is considered. The influence of SS coal quality on the operation of electrothermal furnaces is studied. © 2012 Allerton Press, Inc.


Strakhov V.M.,OAO VUKhIN | Surovtseva I.V.,OAO VUKhIN | Elkin D.K.,ZAO Kremnii | Elkin K.S.,OOO RUSAL ITTs | Cherevko A.E.,OOO RUSAL ITTs
Coke and Chemistry | Year: 2012

The quality of low-ash coal and semicoke is analyzed in terms of the requirements on carbon reducing agents in silicon production. Their prospects for the production of high-purity silicon are discussed. © 2012 Allerton Press, Inc.


Selyanin I.F.,Siberian State Industrial University | Deev V.B.,National University of Science and Technology "MISIS" | Kukharenko A.V.,OOO RUSAL ITTs
Russian Journal of Non-Ferrous Metals | Year: 2015

The main directions of resource-saving and environment-saving fabrication technologies of secondary aluminum alloys in modern industrial conditions are considered. The types of feedstocks and applied smelting aggregates are analyzed, and promising ways to further improve this production process are shown. It is revealed that the traditional processing method of secondary aluminum feedstock, which is widely used in practice, is thermal treatment in a medium of molten chloride salts. Salt-free technologies of processing aluminum dross, which are based on the separation of metal and oxides by the mechanical effect on them under conditions of high temperatures in the medium of the furnace atmosphere or collector metal, are proposed. Their advantages over the widespread salt technology are considered: materials applied to treat the melt are substantially less expensive than alkali metal chlorides; dump slags are environmentally pure; and the process has high productivity since it is performed in one metallurgical aggregate, which excludes the necessity of cleaning the walls and bottom part in it. The examples of implementing the salt-free processing technologies of aluminum feedstock under consideration under conditions of several Russian metallurgical enterprises are shown. © 2015, Allerton Press, Inc.

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