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Dr Ing HCF Porsche AG
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Dr Ing HCF Porsche AG
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Publication of FR904949ApublicationCriticalpatent/FR904949A/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
C21D1/34—Methods of heating
C21D1/44—Methods of heating in heat-treatment baths
C21D1/46—Salt baths
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FR904949D1943-06-101944-06-09Dispositif de sécurité pour fours à tremper
ExpiredFR904949A
(fr)