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EOn Ruhrgas AG
Bergische Stahl Industrie
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Bergische Stahl Industrie
Ruhrgas AG
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Application filed by Bergische Stahl Industrie, Ruhrgas AGfiledCriticalBergische Stahl Industrie
Application grantedgrantedCritical
Publication of FR869628ApublicationCriticalpatent/FR869628A/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
C21D5/00—Heat treatments of cast-iron
C21D5/04—Heat treatments of cast-iron of white cast-iron
C21D5/06—Malleabilising
C21D5/08—Malleabilising with oxidation of carbon
C21D5/10—Malleabilising with oxidation of carbon in gaseous agents
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FR869628D1939-08-241941-01-30Procédé pour la cémentation de fonte malléable
ExpiredFR869628A
(fr)