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EIDP Inc
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EI Du Pont de Nemours and Co
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Application filed by EI Du Pont de Nemours and CofiledCriticalEI Du Pont de Nemours and Co
Application grantedgrantedCritical
Publication of FR870230ApublicationCriticalpatent/FR870230A/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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FR870230D1940-04-101941-02-22Procédé pour le traitement thermique de métaux
ExpiredFR870230A
(fr)