Method for producing clean cold strip

Details Method for producing clean cold strip Method for producing clean cold strip

C - Chemistry, Metallurgy

21

D

148/34.4

C21D 8/02 (2006.01)

Patent

CA 1212601

METHOD FOR PRODUCING CLEAN COLD STRIP Abstract of the Disclosure: A clean cold strip is produced by injecting at a high pressure a rolling mill lubricant emulsion of a low concent- ration to both the sides of a strip at the last stand of a rolling mill, thereby removing oil and metal dust therefrom, charging the cold strip as rolled into a box annealing furnace, mixing water steam with an atmospheric gas of the annealing furnace consisting mainly of nitrogen and hydrogen, and adjusting the dew point of the gas within the furnace to 0 - 10°C.

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