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ABB Norden Holding AB
Original Assignee
ASEA AB
Allmanna Svenska Elektriska AB
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Application filed by ASEA AB, Allmanna Svenska Elektriska ABfiledCriticalASEA AB
Application grantedgrantedCritical
Publication of FR936391ApublicationCriticalpatent/FR936391A/fr
C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
C21D1/34—Methods of heating
C21D1/40—Direct resistance heating
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Thermal Sciences
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FR936391D1945-12-011946-11-30Procédé de traitement thermique des aciers et d'autres métaux
ExpiredFR936391A
(fr)