Institut Elektrosvarki Imeni E.o. Patona Akademii Nauk Ukrainskoi Ssr

Moskovsky Institut Stali I Splavov

Nikolai A Tulin

Boris E Paton

Jury V Latash

Gary A Melnik

Valentin P Bystrov

Vladimir A Romenets

Alexandr M Pozhivanov

Evgeny Felixovich Vegman

Oleg S Zabarilo

Dmitry I Ryzhonkov

Andrei V Vanjukov, Deceased

Alexandr B Usachev

Alexandr D Vaskevich

Stanislav V Kremenevsky

Alexei A Ugarov

Valentina M Chizhikova

Valery S Valavin

Gennady L Gursky

Gavriil D Agarkov

Ljudmila G Odintsova

Sergei E Gedzun

Nikolai P Pozdeev

Anatoly B Glovatsky

Valery D Azbukin

Alexandr D Yatsenko-Zhuk

Georgy N Okorokov

Vasily A Tkalich

Vladimir G Guglya

Gennady G Vedernikov

Vasily R Grebennikov

Nikolai V Letnikov

Vladislav V Tetjukhin

Method for preparing ferrocarbon intermediate product for use in steel

The proposed method relates to the ionization of plasma-generating gas in a ilot arc before being supplied to the electrode region, thus generating charges in this electrode region, the charges promoting dispersion of an arc spot. For this purpose, an electrode assembly is provided within the plasma-arc torch, which electrode assembly comprises a hollow tungsten electrode and a solid electrode of the same metal, the solid electrode being radially spaced from the hollow electrode. Both electrodes are put in an electric power circuit, whereby an arc is initiated between the electrodes when switching on the electric circuit, plasma being generated in the arc, which plasma serves to start the main arc and provides for dispersion of the arc spot over the surface of the hollow electrode. This decreases the current density in the arc spots and, hence, minimizes electrode erosion. Such an arrangement provides for the nozzle to be electrically insulated from the electrodes and, therefore, protected against harmful damage.

Method of generating plasma in a plasma-arc torch and an arrangement for

Growing community of inventors

Moscow, Russia

Nikolai A Tulin