PROCESS AND PLANT TO OBTAIN STEEL STRIP ROLLS WITH COLD ROLLING CHARACTERISTICS AND DIRECTLY OBTAINED FROM A HOT ROLLING LINE.

摘要

A PROCESS FOR OBTAINING STEEL RIBBON COILS WITH CHARACTERISTICS OF HOT ROLLING PRODUCTS, DIRECTLY ON A COLD ROLLING LINE, WHICH ALSO INCLUDES THE MELTING AND REDUCTION THICKNESS STEPS AT A TEMPERATURE OF MORE THAN 1100 C SOLIDIFICATION, PRODUCT INDUCTION HEATING AND A SUBSEQUENT HOT ROLLING STEP, ABOVE POINT AR3, A COOLING STEP AND TEMPERATURE CONTROL IN A RANGE BETWEEN 600 AND 250 C, IN THIS WAY LESS THAN SAID POINT AR3, AS WELL AS ONE OR MORE STEPS OF COLD ROLLING IN SERIES, WITH A FINAL ROLLING OF THE PRODUCT OBTAINED. A PREFERRED PLANT FOR THE IMPLEMENTATION OF SUCH PROCESS IS ALSO DESCRIBED.