Food aluminium foil roll production process problems
Many problems might rise in the aluminium foil production process , among which are thickness difference, water marks and oil remains. Here we deal with the three. The thickness difference of aluminum foil roll s is often encountered in the rolling process of aluminum foil production. 3% thickness difference may be easy to achieve in aluminum plate manufacturing, but it is very difficult in aluminum foil production. Because the thickness of aluminum foil is very thin, such as drug foil, i.e. medical aluminum foil, the thickness is usually 0.02mm-0.025mm, many fine conditions will have a serious impact on it. Such as temperature, oil film, oil and gas concentration, etc. The length of a roll of aluminum foil can reach tens of thousands of meters, the rolling time is long, and it is easy to cause the uneven thickness. The only way to adjust the thickness is the tension speed. Therefore, it is very difficult to control the thickness difference of aluminum foil within 3%, and...