C - Chemistry – Metallurgy – 21 – C
Patent
C - Chemistry, Metallurgy
21
C
39/107, 53/367
C21C 7/04 (2006.01) C21C 5/34 (2006.01) C21C 5/46 (2006.01) C21C 5/48 (2006.01) C22B 9/10 (2006.01) F27D 3/18 (2006.01)
Patent
CA 1222626
Abstract of the Disclosure Disclosed herein is an apparatus for blowing a powdery refining agent into a refining vessel which is adapted to blow the powder into a molten metal bath of the refining vessel together with a refining gas by feeding the powder from a pressure vessel to a main pipe for the supply of the refining gas. The pressure vessel is connected to the main pipe through a plurality of transportation pipes each provided with an on-off valve and connected to a secondary gas pipe for introduc- tion of the refining gas downstream of the on-off valve. The secondary gas pipe is provided with a flow control valve.
443910
Hamada Shunji
Iwamura Tadaaki
Saito Sadayuki
Takabe Ryoji
Kawasaki Steel Corporation
Smart & Biggar
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