RU95121196A - METHOD OF MANUFACTURING METAL STRIPS OF PRIMARY ELECTROTECHNICAL STEEL - Google Patents

Claims (1)

A method for manufacturing metal strips preferably electrical steel comprising the smelting, casting, roughing and finishing hot rolling, cooling rolled on the rolling line simultaneously with coiling rolled into a roll at a speed of coiling equal during rolling the strip exit speed from the last stand (V _cm-1 -V _etc. ) and a constant tension band when rollback (T _cm) etching scale, cold rolling, recrystallisation, decarburization annealing and high temperature, raised to an intensity of 5-10% cooling back to AEC rolled on sections 100 ^o C of 75 m in length rolled coiling speed decrease the expression of the roll ends
V _cm2 = (0.8 ÷ 0.95) V _cm1 ,
task that implement the drive pinch rollers mounted to the reel, _roll velocity V = (0,8 ^o C0,95) V _pr across

c after the strip leaves the last stand, where L _{о x} is the length of the entire cooling section, by means of a control circuit for rotating the rollers by gauging the presence of metal in the stand and maintaining V _{с m 2} = const until the end of the coil winding and maintaining T _{с m} = const torques of rollers and winder drum with simultaneous translation of the drive of rotation of the rollers of the live rolls of the rolling section of the rolled section to the generator mode.