Roughing mill profile used packaging steel strip production

Packaging steel strip roughing mill used in production profile ( 1) Equipment in the front of the roughing mill with iron oxide scale machine. Its role is to remove produced by out of slab heating furnace in a thick layer of tin oxide at a time. Adopt the method of small pressure under rolling. Make the iron oxide crack, then use high pressure water ( 100 - 150 kg/cm2) To be clear. Tin oxide breaker machine has a horizontal and vertical, in the form of, most recently by the latter. The form of a roughing mill are continuous and reversible. Through the 4 - slab from one direction Six of the roughing is continuous. In this situation, usually use synchronous motor drive, a slab cannot at the same time two tandem rolling mill. Reversing is on a rolling mill, rolling 3 - back and forth 7 times, due to mill can reverse and variable speed, USES the dc motor drive. ( 2) After the descaling operation for roughing. The descaling slab, according to the identified on the roughing mill thickness, width, and the expected plate type, temperature, surface character, through horizontal and vertical roll, descaling device for rolling. Roughing is according to the thickness and the thickness of the roughing mill and finishing mill capacity balance, yield, operation conditions and so on.