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Evonik Operations GmbH
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Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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Application filed by Degussa GmbH, Deutsche Gold und Silber ScheideanstaltfiledCriticalDegussa GmbH
Application grantedgrantedCritical
Publication of FR886205ApublicationCriticalpatent/FR886205A/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
C21D1/44—Methods of heating in heat-treatment baths
C21D1/46—Salt baths
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FR886205D1939-05-161942-09-25Procédé pour le durcissement à la chaleur des aciers
ExpiredFR886205A
(fr)