The operation process of corrugated steel mill mainly includes preparation, piercing, rolling, unloading and roll replacement.
In the preparation stage, it is necessary to check whether the thickness meter ray source is opened, start the cooling tower pump, circulating pump, high pressure pump, low pressure pump, back pressure pump, dilute oil pump, rolling oil pump, oil fog fan and other equipment, and turn on the lighting. The host and scmachine are then started.
Enter the belt piercing link, lift the steel coil to the entrance winding machine and the drum to the exit winding machine. Through a series of operations such as pulling the fork to fix the drum, closing the clutch, the roller and the oil extrusion plate rising, the steel strip is sent to the exit winding machine, and the pressure roll drops after wrapping the exit winding machine for 5 laps.
The rolling process is the core link, which needs to load the upper and lower working roll and clamp, close the roller joint, set the roller joint value on the operating table or man-machine interface, after the rolling force or the roller joint reaches the set value, put the thickness gauge, increase the tension to the set value, select the rolling direction and accelerate to the set speed. During the process, the pressure on the transmission side and the operating side should be adjusted to prevent deviation and adjust the roller seam to ensure the secondary target thickness. When rolling to the end, gradually slow down to stop, and roll several times to the target thickness.
When unloading, reduce the tension to the static tension, open the roll joint, cancel the static tension, close the rolling oil pump, etc., remove the unrolled part of the tail, pull the tail to the outlet and lift the steel roll.
The replacement of the roller system includes two steps: pumping roller and roller loading. It needs to stop and reduce the tension to the static tension, open the roller joint, and extract and install the supporting roller and working roller in order.
The whole operation process should strictly abide by the safety procedures, wear the protective equipment to ensure the normal operation of the equipment and avoid accidents. At the same time, it is necessary to pay attention to the rolling oil temperature, winding diameter measurement and other problems, to ensure the product quality.