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C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
C21C7/10—Handling in a vacuum
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FR59018321A1963-12-111963-12-11Procédé et appareils pour la coulée en poche et le dégazage sous vide de métaux à partir de l'appareil de fusion
ExpiredFR1386470A
(fr)
Dispositif pour l'observation de processus dans des appareils à vide poussé, notamment du processus de fusion dans des fours de fusion sous vide poussé