Rolling Mill Adjustment before Rolling

Before the rolling mill is used, the roll shape should be adjusted according to the size of the finished products, the plate type should be controlled, and the rolls should be supported, and the fixed position of the rolls in the rolling mill should be maintained. The workload of the roll bearing is heavy and varies greatly, so the friction coefficient of the bearing is required to be small. After determining the product rolled by the mill, the line speed of the rolling mill can be basically determined. The hardness of the raw materials is measurable. The rolling stock of the rolling mill is determined by changing the plastic deformation size.

Usually, the newly installed rolling mill has a running-in process. During the running-in process, the rolls are operated at an empty load and the operation speed is 50%, 65%, 75%, and 85%. Different rolling mill models have different materials and specifications for rolling products.

After the rolling mill is installed, the gears of the reducer and the gear box need to be meshed. The rolling speed is too fast, and the torque is enhanced. After the normal operation of the rolling mill for 30 days, stop the rolling mill and check the meshing of the large and small gears, and waits for everything to be normal, the rolling speed can be increased.

Under normal circumstances, it is not necessary to adjust the rolling speed. The rolls in the rolling mill is constantly worn during the running process. In order to keep the rolling mill stable in the controlled rolling requirements, the roll must be repaired in time, and the rolls need to be replaced in serious cases.

The rolling mill is not without labor. Even the automated equipment needs to be monitored manually in the console. The conveyor roller and shearing machine located in the automatic rolling mill must be strictly controlled during operation to avoid the failure of steel piling or jamming,  and the roll and guide wear beyond the specified range need to be replaced.

The rolling of the billet leads the roll to be squeezed instantaneously, and the bearing is subjected to correspondingly high pressure, thereby affecting the product size of the rolled steel. We may also need to make in-depth improvements, but the ultimate goal is to get better rolling mill equipment.