The invention belongs to the technical field of the
ferrous metallurgy industry, and relates to a short-process long material endless rolling
production line and a short-process long material endlessrolling method. The short-process long material endless rolling
production line comprises a steel making furnace, a
continuous casting machine, a withdrawal and straightening
machine, a rough rollingproduction line, an intermediate rolling
production line, a finish rolling production line, a reducing and
sizing mill production line and a cooling table. The steel making furnace, the
continuous casting machine, the withdrawal and straightening machine, the rough rolling production line, the intermediate rolling production line, the finish rolling production line, the reducing and
sizing mill production line and the cooling table are closely connected in sequence. The rough rolling production line comprises a rough rolling unit, an accident shear and cooling table, a heat preservation deviceand a pair of first end
cutting flying shears in sequence. The heat preservation device supplements the heat for a
casting blank which is subjected to rough rolling operation, and the separation distance between an inlet of the withdrawal and straightening machine and an inlet of the rough rolling unit ranges from 9m to 30m. The intermediate rolling production line comprises an intermediate rolling unit, a
water cooling tank and a pair of second end
cutting flying shears in sequence. The finish rolling production line comprises a finish rolling unit, a
water cooling tank and a pair of third end
cutting flying shears in sequence. The reducing and
sizing mill production line comprises a reducing and sizing mill unit, a
water cooling tank and a pair of fixed-length flying shears in sequence.By the adoption of the short-process long material endless rolling production line, the technological arrangement is simple, the separation distance between the
continuous casting machine and the rough rolling unit is small, the rough rolling gripping operation is facilitated, the
relative power consumption of the heat preservation or supplement which is conducted after the rough rolling operation is accomplished is low, the cost is low, the industrial production is easily achieved, and the short-process long material endless rolling production line has the obvious economic benefit.