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Albert Nikitovich Korotkov

Konstantin S Eltsov

Boris I Medovar

Viktor Leonidovich Artamonov

Alexei G Bogachenko

Oleg Petrovich Bondarenko

Jury P Shtanko

Viktor Iosifovich Lakomsky

Gennady Fedorovich Torkhov

Georgy Mikhailovich Grigorenko

Gary P Kaganovsky

Ivan Vasilievich Sheiko

Nikolai V Stetsenko

Sergei S Popov

Alexei Ivanovich Pakhomov

Vitaly Mikhailovich Baglai

Grigory A Timashov

Boris B Fedorovsky

Vasily I Us

Vladimir Kirillovich Trigub

Emil Vasilievich Verkhovtsev

Leonid V Pavlov

Vladimir Denisovich Shevchenko

Nikolai Mikhailovich Kiselev

Evgeny Isaevich Moshkevich

Viktor Mikhailovich Kurganov

Sergei Arsentievich Kanibolotsky

In melting down at least one consumable electrode in an electroslag remelting furnace, a gas is blown into the molten slag in such a manner that the gas flows in a jet towards the consumable electrode portion immersed into the slag to create a slag flow around said portion and thereby accelerate the melting-down of the electrode. The method efficiently eliminates an unbalance in the melting-down rates of two or more electrodes by blowing in the gas at different or controlled flow rates towards every electrode.

Method for electroslag remelting of metals

A mould wall has one or a plurality of cylindrical or tapered inserts positioned therein. The outer lateral surfaces of the inserts are provided with longitudinal through grooves bounded by the wall of the opening wherein the insert is positioned, the groove and the wall forming passages for feeding gas into the slag pool zone in the mould. The insert may consist of a plurality of parts coaxial within one another, the outer lateral surfaces of the parts having longitudinal through grooves similar to those on the insert outer surface. The mould construction according to the invention simplifies the technique for manufacturing ducts for feeding gas into the slag pool zone and raises the intensity of interaction between the gas and the liquid pool by feeding gas in the form of small bubbles having large total surface area.

Electroslag remelting mould

According to the invention, there is proposed a feed system for a plasma-arc furnace wherein an electrode with an axial opening is used as the low-temperature plasma generating means. The feed system comprises a gas conduit, in the form of an individual water-cooled member, a current-conducting element mounted within a shell and secured to a flange which includes a duct for the delivery of gas, a duct for feeding flux, and a duct for supplying water. The flange has secured to it the shell. A flux delivery means and a bus for power supply are also included. The herein proposed feed system makes it possible to assure stable operating conditions of a plasma-arc furnace, enhance its efficiency, reduce power losses and decrease expenses involved in the remelting of metals and alloys.

Feed system for plasma-arc furnace

A plasmarc furnace for remelting metals and alloys in a controlled atmosphere, which comprises a hollow consumable electrode disposed in a crystallizer and an arc plasmatron with a nonconsumable electrode disposed above the hollow consumable electrode coaxially therewith. A hollow rod is provided above and coaxial with the arc plasmation driven by a vertical travel mechanism and insulated from the arc plasmatron leads. The plasma-forming gas is delivered to the plasma discharge zone by a plasma-forming gas supply and flow rate control system via a gas conduit defined by the cavities of the hollow rod, the arc plasmatron and the hollow consumable electrode. The crystallizer and hollow rod are coupled to the opposite poles of the power source.

Plasmarc furnace for remelting metals and alloys

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Zaporizhzhia, Ukraine

Albert Nikitovich Korotkov