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(1) The residual stress on the surface of the rolled roll after grinding cannot be completely eliminated in practice. It is necessary to measure the hardness values of each pair of rolls before and after grinding for long-term tracking to grasp the performance status of the rolled roll. This is beneficial for timely revision of the reasonable grinding process. Additionally, when the normally rolled rolled roll is unloaded from the rolling mill, the main operator of the rolling mill should fill in the rolling time, rolling tonnage, and reason for roll change on the roll change sheet. The grinder can make appropriate adjustments to the grinding amount based on the usage condition. In order to allow the stress to naturally eliminate, the rolled roll must be naturally cooled to 25°C~30°C before it can be re-ground. Complete process data should be recorded for each re-grinding of the rolled roll.

(2) Grinding a taper chamfer on both ends of the work roll can effectively reduce stress concentration. Designing a circular arc composite chamfer on both ends of the backup roll can effectively reduce the stress concentration at the edge of the backup roll itself, and also alleviate the concentrated load impact of the backup roll edge on the work roll.

(3) Rolls cannot be used if surface fatigue cracks are present. After rolling a certain amount of aluminum strip, minor cracks may appear due to surface fatigue hardening. If not detected and ground in time, it will lead to surface fatigue damage, cracking, and spalling of the roll. This requires the main operator of the rolling mill to inspect it in a timely manner and replace the roll as per regulations. Experienced production managers can replace the roll and re-grind it in time when the fatigue layer has not yet produced fine cracks.

(4) Reasonably select process parameters such as rolling force and reduction to prevent unnecessary heavy load impact on the roll surface. When a new roll is installed in the rolling mill and begins to be loaded, the rolling force should be gradually increased in a step-by-step manner to the target parameters, so as to avoid excessive changes in the force on the roll.

(5) Ensure that the rolling oil spray system does not experience any abnormalities. During the rolling process, a large amount of frictional heat is generated between the rollers and the aluminum strip. The spray system must have sufficient cooling and lubricating capabilities, otherwise it will cause excessive thermal shock to the rollers. Additionally, if process conditions permit, extreme pressure additives can be added to the rolling oil to improve its viscosity. Good lubrication can reduce roller wear, alleviate thermal fatigue, decrease rolling force, improve the stress state during rolling, and also stabilize the rolling roller system.

(6) After new grinding, the rollers that are replaced in the rolling mill should be preheated with the maximum spray volume to ensure that the temperature of the rollers is basically consistent with the oil temperature. When starting rolling, the rolling speed should be slowly increased to fully preheat the rollers. This can avoid excessive thermal stress on the roller body due to short-term excessive thermal shock.

(7) When using rolling mills, it is important to ensure that all rolling mills have a moderate and balanced workload, with new and old rolling mills being used alternately. Try to allow the rolling mills to have a longer period of natural aging.

(8) In winter, the newly replaced rollers must be properly insulated according to the ambient temperature of the workshop. If the ambient temperature is too low, insulation is necessary to ensure that the rollers cool down evenly and slowly, preventing stress changes caused by excessive temperature differences.