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BROWN
BBC Brown Boveri AG Germany
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BROWN
Brown Boveri und Cie AG Germany
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Application filed by BROWN, Brown Boveri und Cie AG GermanyfiledCriticalBROWN
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Publication of FR757651ApublicationCriticalpatent/FR757651A/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
C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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FR757651D1932-06-301933-06-27Procédé pour le recuit en blanc des objets métalliques
ExpiredFR757651A
(fr)