How to control the thickness of aluminum foil
Thickness error is difficult to manipulate is a characteristic of aluminum box rolling, 3% of the thickness difference in the production of plate and strip is not difficult to manipulate, but in the production of aluminum foil is more difficult to manipulate. Because with the thinning of the thickness of the aluminum box, its trace conditions can cause the impact, such as temperature, oil film, oil and gas concentration. Aluminum foil rolling a volume up to hundreds of thousands of meters, rolling time up to 10h or so, with the time extension of the thickness measurement error easy to constitute. And the aluminum foil thickness adjustment of only tension and speed. These factors have caused the aluminum foil rolling thick control difficulties. Therefore, the real control of aluminum box thickness difference within 3%, need to use many conditions to ensure: the use of qualified thickness of aluminum foil billet; rolling adjustments, control of the amount of under pressure and roll type, as well as roll according to the rules of the parameters of the grinding; stable rolling process; rolling process diligently measure the thickness of the aluminum box, to avoid the side of the thickness of the system faults are not found, etc..
Double-zero aluminum foil in the end where the high-end?
Production of aluminum foil is not difficult, difficult to produce double-zero aluminum foil, especially ultra-thin double-zero aluminum foil. Now, China has a stable production of 0.004mm aluminum foil manufacturers 10. And these few enterprises all use the imported equipment production, such as Germany Aschenbach, British voestalpine and David, Italy Mino and Fata, Japan Kobe Steel and so on. If the use of domestic aluminum foil rolling mill according to the general process of production of 0.004mm aluminum foil production is very difficult, the yield is less than 55%, high rate of belt breakage and tens of thousands of pinholes. In the aluminum foil use * wide range of packaging, more than 90% need to use double-zero aluminum foil, especially aluminum-plastic composite packaging, electrolytic capacitors, air conditioning and battery packaging and other industries is less double-zero aluminum foil. It can be said that the consumption level of aluminum foil is an important symbol of the degree of national economic development, double-zero aluminum foil is even more so.
