The roll neck is installed in the bearing and transmits the rolling force to the stand through the bearing housing and pressing device. The drive end shaft is connected to the gear seat through the connecting shaft, transmitting the torque of the motor to the roll. Rolls can be arranged in two-roll, three-roll, four-roll or multi-roll configurations in the mill stand.
There are many ways to classify alloy rolls, mainly including:
(1) According to product type, there are strip rolls, section rolls, wire rolls, etc.;
(2) According to the position of the roll in the mill series, there are roughing rolls, finishing rolls, etc.;
(3) According to the function of the roll, there are scalding rolls, piercing rolls, leveling rolls, etc.;
(4) According to the material of the roll, there are steel rolls, cast iron rolls, cemented carbide rolls, ceramic rolls, etc.;
(5) According to the manufacturing method, there are cast rolls, forged rolls, welded rolls, sleeved rolls, etc.;
(6) According to the state of the rolled steel, there are hot rolls and cold rolls. Various classifications can be combined to give rolls a more specific meaning, such as centrifugally cast high-chromium cast iron work rolls for hot-rolled strip steel.
