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SHORTER PROCESS Co Ltd
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SHORTER PROCESS Co Ltd
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Publication of FR917009ApublicationCriticalpatent/FR917009A/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
C21D1/08—Surface hardening with flames
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FR917009D1943-08-091945-11-05Durcissement de la surface des pièces en métal
ExpiredFR917009A
(fr)