C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
38/8
C21D 9/56 (2006.01)
Patent
CA 1255897
ABSTRACT OF THE DISCLOSURE This invention relates to a continuously treating line for a steel band, having a heating furnace by directly flaming. For heating the steel band with causing reduction, the heating furnace of directly flaming system is provided with a plurality of heating burners of reduction system which may form non- equilibrium range of the air and the fuel in a flame, that is, a reduction range, wherein the heating burners are positioned at predetermined arrangement with respect to the steel band and at a certain pitch predetermined in relation with an inner dia- meter of the burner in a line running direction. The treating line has said heating furnace constructed as mentioned above and a subsequent atmosphere furnace, and said atmosphere furnace may be provided with a sealing chamber having various means for avoiding invasion of the outer air. The line has, in order, a pre-heating furnace, said heating furnace and an indirectly heating furnace, and it may be furnish- ed with intermediate chambers between respective furnaces for preventing the furnace gas from moving, and further may be fur- nished with an after-burning chamber for perfectly burning a combustion exhaust gas to be supplied to the pre-heating chamber.
513536
Abe Masahiro
Arima Kouichiro
Fukuda Shuzo
Fukunaka Shiro
Kaneto Shuji
Nippon Kokan Kabushiki Kaisha
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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