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Sergei P Efimenko

Grigory M Shulgin

Vyacheslav F Gubaidulin

Julian M Chumanov

Dmitry P Evteev

Vladimir P Slednev

Viktor I Pogorzhelsky

Jury P Lyashenko

Leonid M Pokrass

Alexandr E Sochnev

Abram M Ofengenden

Pavel A Levichev

Leonid I Krupman

Boris Viktorovich Gavronsky

Stanislav N Ignatiev

Veniamin Veniaminovich Fulmakht

Vladimir S Solod

Anatoly L Liberman

Vasily V Polyakov

Valentin B Shum

Alexandr P Voropaev

Valentin Y Laschev

Anatoly G Shalimov

Vakhtang V Mosiashvili

Eduard V Ovsy

Vasily P Morozov

Valery V Moiseenkov

Vladimir I Listopad

Anatoly A Tolpa

A method of making billets, whereby a composite billet is produced by continuous casting or rolling, which billet is star-shaped in cross section and has at least two ray members disposed symmetrically relative to the central longitudinal axis of the composite billet; the base of each star ray member of the composite billet at the place of its juncture with the central portion thereof is selected to be 0.72 to 2.3 of the ray member height, the other base being 0.5 to 1.0 of the ray member height, the lateral sides of the ray member may differ in length; the segregation zone is caused to concentrate in the central portion of the composite billet selecting appropriate relationship between geometric dimensions of the composite billet and by creating favorable conditions for producing the composite billet; thereafter, the ray members are severed from the central portion of the composite billet by means of rolls in a rolling mill, this being performed by subjecting one of the lateral sides of the ray member to the action of an appropriately grooved roll.

Method of making billets

The invention relates to a method of rolling section billets in which billets interconnected by bridges are successively formed from a slab in a number of grooves defined by a plurality of transversely juxtaposed passes, with subsequent separation of billets from one another by effecting a relative displacement of adjacent billets by prevailingly acting with a groove on one of the sides of the adjacent billets at an angle other than 90.degree. to the roll axis when the bridge thickness becomes equal to 0.01-0.3 of the groove height.

Method of rolling section billets

A method for refining a quantity of metal by a correlated quantity of fluid slag comprising discharging the metal to be refined as a stream into a refining vessel and discharging the slag into the vessel in a stream which strikes the metal stream. The slag is discharged in an amount equal to 50% of the total slag content before the discharge of 20% of the metal is completed, the discharge of slag being halted while continuing the discharge of the metal until 50% of the metal has been discharged. The discharge of the remaining 50% of the slag content is resumed as a stream striking the metal stream during the time when the remaining 50% of the metal is discharged.

Method of refining of metal

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Kharkiv, Ukraine

Sergei P Efimenko