| 摘要 |
<p>Process for the decarburation of steel in a vacuum treatment chamber consisting of a bell-shaped upper part (4), of an intermediate ring (5) and of a lower part (6) in which the bath of metal (2) to be treated is located and which is equipped with two plungers (legs) (7, 8) which are immersed in the ladle (9) with steel containing all the metal (10) to be treated, characterised in that oxygen is blown horizontally over the bath of metal (2) to be treated, at the level of the intermediate ring (5), substantially at its centre. Vacuum steel treatment chamber in which at least two horizontal blast pipes (tuyeres) (11, 12) are provided in the intermediate ring (5) of the said chamber, substantially at its centre. <IMAGE></p> |
