Continuous annealing method and apparatus for cold rolled steel

Details Continuous annealing method and apparatus for cold rolled steel Continuous annealing method and apparatus for cold rolled steel

1985-05-03

1986-06-17

Camby, John J.

Heating

Processes of heating or heater operation

Continous strip, strand or web passed longitudinally through...

266103, 432 59, F27B 928, C21D 954

Patent

active

045953570

ABSTRACT:
A method and an apparatus for continuously annealing cold rolled steel strips successively passing through a preheating zone, a low temperature heating zone, a high temperature heating soaking zone, a primary cooling zone and a secondary cooling zone. In each zone, the steel strip is driven by hearth rolls alternately upward and downward in a serpentine path. According to the invention, in a high temperature zone such as the high temperature heating zone and the primary cooling zone where the steel strip is prone to heat buckling, the steel strip is caused to pass only once in a single direction without passing along the serpentine path, thereby preventing meandering and heat buckling of the steel strip.

REFERENCES:
patent: 2706625 (1955-04-01), Lorig
patent: 3181977 (1965-05-01), Sturgeon
patent: 4364728 (1982-12-01), Stamp
patent: 4379547 (1983-04-01), Shimbashi et al.

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