Electroslag casting of metal ingots for power motor rotor mfr. - by immersing less than half in molten slag and casting with interruptions over a set time, then completing the casting operation

A slag pool is formed in a cooling type casting mould and electrodes for heating the metal ingot are fitted in the casting mould and 30-50wt.% of total metal ingot is cast in the slag pool which is heated with the electrodes. The casting of the electroslag is intermittently stopped and in the course...

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Main Author N. A. TULIN, M. I. KRICHEVETS, N. F. BASTRAKOV, N. V. KEIS, B. M. STAROSTIN, J. V. LATASH, A. E. VORONIN, R. G. KRUTIKOV, N. P. POZDEEV, F. A. GERMELIN, V. P. ZVONAREV, J. A. KHOLODOV ET V. A. NIKOLAEV
Format Patent
LanguageEnglish
French
Published 07.12.1979
Subjects
CASTING
CASTING OF METALS
CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
CHEMISTRY
FERROUS OR NON-FERROUS ALLOYS
METALLURGY
PERFORMING OPERATIONS
POWDER METALLURGY
PRETREATMENT OF RAW MATERIALS
PRODUCTION AND REFINING OF METALS
TRANSPORTING
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:A slag pool is formed in a cooling type casting mould and electrodes for heating the metal ingot are fitted in the casting mould and 30-50wt.% of total metal ingot is cast in the slag pool which is heated with the electrodes. The casting of the electroslag is intermittently stopped and in the course of a specified time, the residue of total metal ingot is cast in the slag pool and it is heated with the electrodes. L'INVENTION CONCERNE LA METALLURGIE.LE PROCEDE FAISANT L'OBJET DE L'INVENTION EST DU TYPE CONSISTANT A CREER UN BAIN DE LAITIER DANS UNE LINGOTIERE REFROIDIE 2, A LE CHAUFFER A L'AIDE D'ELECTRODES 5 ET A COULER LE METAL LIQUIDE PAR PORTIONS A TRAVERS LA COUCHE DE LAITIER LIQUIDE 7, LA COULEE DE CHAQUE PORTION ETANT EFFECTUEE APRES SOLIDIFICATION DE PLUS DE 50 DE LA PORTION PRECEDENTE, ET EST CARACTERISE EN CE QU'ON ARRETE LA COULEE DE LA PREMIERE PORTION 9 DE METAL LIQUIDE DANS LE BAIN DE LAITIER QUAND LA MASSE DU METAL DANS LA LINGOTIERE ATTEINT 30 A 50 DE LA MASSE TOTALE DU LINGOT, ET QU'ON EFFECTUE LA COULEE DE CHACUNE DES PORTIONS SUIVANTES JUSQU'A CE QUE SA MASSE DANS LA LINGOTIERE ATTEIGNE 10 A 50 DE LA MASSE DE LA PREMIERE PORTION.L'INVENTION S'APPLIQUE NOTAMMENT A L'ELABORATION DE LINGOTS DE GRANDES DIMENSIONS DESTINES A ETRE EMPLOYES COMME EBAUCHES POUR LA FABRICATION DES ROTORS DE GENERATEURS ET D'AUTRES PIECES DE GRAND ENCOMBREMENT.
Bibliography:Application Number: FR19780014047