C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
38/23
C21D 1/613 (2006.01) C21D 1/767 (2006.01) C21D 1/773 (2006.01) F27B 5/16 (2006.01) F27B 5/06 (2006.01) F27B 5/14 (2006.01)
Patent
CA 2013083
ABSTRACT OF THE DISCLOSURE The flow of gases for heating and cooling the batches in vacuum furnaces is controlled by using two concentric cylinders movable relative to one another and disposed along the central axis of the furnace between the batch chamber and the fan.
Neubecker Karlheinz
Rohde Cordt
Welzig Gerhard
Aktiengesellschaft Degussa
Marks & Clerk
Neubecker Karlheinz
Rohde Cordt
Welzig Gerhard
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