In the production process of aluminum foil processing products, there are often some abnormal phenomena, such as rolling vibration slip, pressure difficulty, speed limitation; Bright stars appear on the dark side of aluminum foil double rolling; Product surface brightness mutation or color difference, pattern and so on. For these abnormal phenomena, the real cause can only be found through field tracking observation, analysis and judgment and test. Sometimes the same problem, the same phenomenon, its cause may be different, the means to solve will not be the same. This concealment requires that the technical personnel must have enough practical experience and strong ability to analyze the problem to deal with.

In the production process of aluminum foil processing products, often found in a process of product quality defects and unrelated to the process, for example, billet inherent metallurgical defects lead to strip or foil holes, slag inclusion, pinholes, surface anomalies, performance exceed the standard and so on; The mechanical damage on the surface of the product caused by the upper process is left on the surface of the product in the lower process. This transmission requires that the production operators must strictly abide by the process system, carefully operate, and strive to eliminate the product quality defects of this process, and do not flow the product quality defects of the previous process into the next process.

Aluminum foil processing and production include casting, hot rolling (casting rolling), cold rolling, foil rolling, finishing and other large processes, each process is related to each other, the upper process is the guarantee of the next process, the next process is restricted by the upper process, each process has different functions, characteristics are different.
In the process of melting casting and casting rolling, there are many non-quantified process factors, and the hidden quality characteristics are more important, so the operation method and responsibility of operators are very important. In hot rolling process, the requirement of time is very strict, and the temperature factor is the most critical. In cold rolling process, billet, roll and rolling oil are the key elements, and surface and plate shape are the main quality indexes. In foil rolling process, the effect of speed and tension is obvious, and it is sensitive to the fluctuation of process factors. In the heat treatment process, the reasonable combination of time and temperature determines the final treatment effect of the product. In the finishing process, ensuring a clean production environment is the first factor.