PLANT AND PROCESS FOR ENERGY-EFFICIENT PRODUCTION OF HOT-ROLLED STRIP Russian patent published in 2016 - IPC B22D11/04 B21B1/46 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy and may be used for strip hot rolling at combination mill. Foundry unit crucible (2) is used to cast 95-110 mm deep slab to be squeezed to 60-95 mm depth in the guide (6). The length (L) of the thrust section measured between meniscus (13) in the crucible (2) and the guide (6) end (14) facing the roughing bloomer (4) equals 12-15.5 m. Casting rate v_c makes 3.8-7 m/min. Slab (3) is rolled to intermediate strip (3') at the roughing bloomer (4) for no longer than 80 s in at least four rolling passes with the help of at least four roughing stands (4₁, 4₂, 4₃, 4₄).

EFFECT: high-quality strip, higher power efficiency and yield.

34 cl, 7 dwg