Introduction of aluminum foil classification and production knowledge-non-slip aluminum plate processing

Introduction of aluminum foil classification and production knowledge-non-slip aluminum plate processing

  Aluminum foil can be divided into industrial aluminum foil and packaging aluminum foil. The chemical composition of industrial aluminum foil is relatively pure, with a thickness of 0.005 to 0.2 mm. It is mainly used as capacitors, thermal insulation materials, and moisture-proof materials in the electrical and electronic industries. The thickness of packaging aluminum foil is generally 0.007 to 0.1 mm. There are various products such as flat foil, printed foil, painted printed foil, and laminated aluminum foil. They are mainly used as packaging materials for food, tea, cigarettes, etc.

　Aluminum foil can be produced with a small thickness of 0.0025 mm and a width of 1800 mm using the tape production method. Aluminum foil rolling is roll-free rolling, and the rolls are always in an elastic flattened state. The thickness of the foil can be controlled by adjusting the rolling force, rolling speed and controlling tension during rolling. During rough rolling, the rolling force is used to control the thickness of the foil; during finishing rolling, the thickness of the foil decreases as the rolling speed increases; the greater the tension, the smaller the thickness; in order to prevent fragmentation, the tension is usually selected as foil The condition of the material is 0.2~0.4 of the standard service strength of the patterned aluminum plate σ0.2. Low-speed rolling often adds "thick oil" or "thin oil" to the lubricating oil to adjust the rolling thickness of the aluminum foil. Lubricant and roll status have a very important influence on the quality of the foil. The aluminum foil blank comes from cold rolled aluminum coil , Generally pre-annealed at 340～480℃, the thickness is 0.4～0.7mm. The deformation rate of pass during rolling is about 50%, and the total deformation rate can reach more than 95%. The thickness of the finished foil is less than 0.01～0.02mm. Carry out coiling and double-sheet rolling.