Method for producing clean cold strip

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

1982-08-18

1984-10-09

Combs, E. Michael

Metal deforming

With exposure of work to gas, vapor, mist, or modified...

72 39, B21B 900, B21B 4508

Patent

active

044753691

ABSTRACT:
A clean cold strip is produced by injecting at a high pressure a rolling mill lubricant emulsion of a low concentration 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.degree.-10.degree. C.

REFERENCES:
patent: 3244565 (1966-04-01), Mayer et al.
patent: 3505844 (1970-04-01), McLean
patent: 3615903 (1971-10-01), Perry et al.
patent: 3826693 (1974-07-01), Fisher
patent: 4043166 (1977-08-01), Leroy
patent: 4344308 (1982-08-01), Shimada et al.
Metals Handbook, "Furnace Atmospheres", vol. 2, 8th Edition, 1964, p. 68.

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