In the aluminum foil production process, to reduce holes, the following measures can be taken:
Prevent rolling mill hydraulic oil from leaking. Once the hydraulic oil leaks into the rolling oil, it will cause the viscosity of the rolling oil to increase, causing an increase in residues, a decrease in transmittance, and a decrease in the efficiency of the purge device during rolling, resulting in an increase in residual aluminum powder and impurity particles on the surface of the aluminum coil. Increase the probability of pinholes.
Rolling oil filtration control. The type and amount of filter aids and clay should be adjusted according to different passes, products, and machines to make the filtration work periodic and regular.
Control of rolling oil spray volume. Try to control the plate shape well in the first 1 to 3 passes of foil rolling; in the first 1 pass and overlay rolling, cooperate with automatic spraying and use manual control to ensure that the spray opening time of each nozzle is greater than 20%; maintain oil Product performance indicators are good.