WIDE STEEL STRIP ROLLING METHOD Russian patent published in 2006 - IPC B21B1/22 

FIELD: manufacture of wide steel strips by rolling slabs in continuous mills for hot and cold rolling of wide strips.

SUBSTANCE: method comprises steps of rolling slabs in continuous wide strip hot rolling mill at reduction degree of edges ▵B = 0.01B_cε in vertical rolls of rough stand group of mill; etching hot rolled strips; rolling them in cold rolling mill and trimming lateral edges of strips in trimming aggregate for providing their width h_k = 0.01B_c(1 - 0.01ε)λ where B_c - slab width before rolling; ε = (6.2 - 7.1%)- percentage lateral reduction value; λ set in range (1.4 - 1.67)% -percentage width of trimmed edges.

EFFECT: increased yield of metal, improved efficiency of rolling mill, lowered metal losses for edge crops.

1 dwg