METHOD FOR PREPARING ELECTRODE MASS FOR SELF-FIRING ELECTRODES

FIELD: electrode making industry branch, metallurgy. ^ SUBSTANCE: method comprises steps of baking hard carbon- containing material such as thermoanthracite, anthracite, coke, breaking them and treating in vapors of coal tar separated from liquid phase of heavy coal-tar products whose mass consists...

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Hauptverfasser: GRINSHPUNT ALEKSANDR GRIGOR'EVICH, MALYJ EVGENIJ IVANOVICH, URAZLINA OL'GA JUR'EVNA
Format: Patent
Sprache:eng ; rus
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Zusammenfassung:FIELD: electrode making industry branch, metallurgy. ^ SUBSTANCE: method comprises steps of baking hard carbon- containing material such as thermoanthracite, anthracite, coke, breaking them and treating in vapors of coal tar separated from liquid phase of heavy coal-tar products whose mass consists 25 -30 % of mass of hard carbon- containing materials; sieving treated carbon-containing materials, metering them and mixing with binder for 3 - 5 min at 140-180°C; shaping briquettes of melt electrode mass. Self-firing electrodes made of composition according to invention features next characteristics: density, 1.71 - 1.98 g/cm3; specific electric resistance, 73.3 - 81.4 Ohm mm2/m, compression strength, 34.1 - 35.2 MPa. ^ EFFECT: enhanced properties of electrodes. ^ 3 cl, 1 tbl, 6 ex