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CIE DES FORGES DE CHATILLON
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CIE DES FORGES DE CHATILLON
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Publication of FR736205ApublicationCriticalpatent/FR736205A/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
C21D1/06—Surface hardening
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FR736205D1931-08-071931-08-07Procédé de traitement des pièces en acier perforées
ExpiredFR736205A
(fr)