PROCESS FOR DECARBURIZING STEEL IN A VACUUM TREATMENT ENCLOSURE AND VACUUM TREATMENT ENCLOSURE FOR IMPLEMENTING THE METHOD.

摘要

P Process for decarburizing steel in a vacuum treatment chamber consisting of a bell-shaped upper part (4), an intermediate ring (5) and a lower part (6) in which finds the bath of metal to be treated (2) and which is provided with two plungers (7, 8) which plunge into the steel bag (9) containing all the metal to be treated (10), characterized in that one breath oxygen horizontally above the metal bath to be treated (2), at the intermediate ring (5) substantially in the middle. BR/ Vacuum steel treatment chamber in which at least two horizontal nozzles (11, 12) are formed in the intermediate ring (5) of said enclosure, substantially in its middle. / P