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Sandvik AB
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Sandvikens Jernverks AB
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Publication of FR1048986ApublicationCriticalpatent/FR1048986A/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
C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
C21D9/02—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for springs
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FR1048986D1950-12-121951-12-11Perfectionnement à la fabrication de ressorts
ExpiredFR1048986A
(fr)