Packaging steel strip roughing mill use profile

Packaging steel strip roughing mill use ( 1) Equipment in the front of roughing mill is equipped with iron oxide scale machine, its role is to remove produced by out of slab heating furnace in a thick layer of a metal oxide, adopt the method of small rolling reduction, make the iron oxide crack, then use high pressure water ( 100 - 150 kg/cm2) Its clear, tin oxide breaker machine has a horizontal and vertical, the form of most recently used the latter. Roughing mill in the form of a continuous and reversible, slab by 4 - 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 in roughing mill thickness, width, and the expected plate type, temperature, surface character, through horizontal and vertical roll, descaling device for rolling. Roughing sequence is according to the thickness and the ability to balance of the roughing mill and finishing mill, yield and operation condition, etc.