In the production of aluminum foil, aluminum foil rolling is divided into roughing, rolling, finishing three processes, from the point of view of the art, can be roughly divided from the thickness of the rolled exit, the general division is the exit thickness greater than or equal to 0.05mm for roughing, the exit thickness of 0.013 ~ 0.05 for the middle of the rolled, the exit thickness of less than 0.013mm of the finished product of the single sheet and the finished product of the double-roll for the finish rolled.
Rough rolling and aluminum sheet and strip rolling characteristics are similar to the thickness control mainly depends on the rolling force and post-tension rough rolling processing rate thickness is very small, its rolling characteristics have been completely different from the rolling of aluminum sheet and strip, with the special characteristics of aluminum foil rolling, its characteristics are mainly the following aspects:
Aluminum sheet and strip rolling. To make aluminum sheet and strip thin mainly rely on the rolling force, so the plate thickness automatic control mode is a constant roll gap for the AGC main body of the control mode, even if the rolling force changes, adjust the roll gap at any time so that the roll gap to maintain a certain value can also be obtained with a consistent thickness of the sheet and strip.
The aluminum foil rolling to the fine rolling, due to the thickness of aluminum foil is very thin, rolling, increase the rolling force, so that the rolls produce elastic deformation than the plastic deformation of the material being rolled easier, the elasticity of the rolls flattening can not be ignored, the elasticity of the rolls flattening decision of the aluminum 済rolling, the rolling force has been less than the role as the rolled sheet, aluminum foil rolling is generally in the constant pressure conditions of the rolls without the rolls seam, to adjust the thickness of the aluminum foil Mainly rely on the adjustment of tension and speed.