Method and apparatus for continuously hot rolling strip

Details Method and apparatus for continuously hot rolling strip Method and apparatus for continuously hot rolling strip

1994-01-21

1996-02-13

Ramsey, Kenneth J.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

29 33C, 29 33B, 228158, 72202, 432122, B21B 146

Patent

active

054903157

ABSTRACT:
In the continuous manufacture of hot strip material, slabs are produced by a pair of continuous casters and heated to a rolling temperature in a bi-level roller hearth furnace. Hot slabs are discharged from the bi-level furnace alternately from its upper and lower roller hearths. The slabs are then scarfed to clean oxide scale from both sides and to heat the slabs to a temperature of about 2300.degree. F. The scarfed ends of adjacent slabs are overlapped and passed through a two high slab mill welder wherein the overlapped ends are joined together. The joined slabs are thereafter finish rolled to strip gauge in a continuous multi-stand hot strip mill.

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