Method for continuously annealing steel strip

Details Method for continuously annealing steel strip Method for continuously annealing steel strip

1995-01-06

1996-03-12

Kastler, Scott

Metal treatment

Process of modifying or maintaining internal physical...

Utilizing disclosed mathematical formula or relationship

148657, 148661, C21D 1100

Patent

active

054978173

ABSTRACT:
In an apparatus for continuously annealing a steel strip after cold rolling, stable operation of the annealing apparatus can be obtained by preventing slippage of bridle rolls and hearth rolls. The diameter D of a bridle roll is set so that a surface pressure p defined by an equation p=h(.sigma..sub.1 +.sigma..sub.2)/D can be 10 kPa (kilopascal) or more, wherein the unit tension of a steel strip at the inlet side of the bridle roll and hearth rolls of the apparatus is .sigma..sub.1, the unit tension at the outlet side is .sigma..sub.2, the thickness of the steel strip is h and the diameter of the bridle roll is D.

REFERENCES:
patent: 4878961 (1989-11-01), Yamaguchi et al.

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