C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
39/106
C21C 1/00 (2006.01) B22D 1/00 (2006.01) C21C 5/34 (2006.01)
Patent
CA 1177643
ABSTRACT A refractory gas-permeable structural unit for blowing a gas into a metal treatment vessel and through its casing has at least two elements composed of refractory material and having abutting longitudinal faces provided with at least one metal layer, a metal housing surrounding the elements to connect them with one another and tightly abutting against other longitudinal faces of the elements, and a gas distribution chamber formed at an end face of the elements and communicating with a gas supply conduit.
380406
Hodl Fritz
Kassegger Friedrich
Arbed S.a.
Swabey Ogilvy Renault
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