Why continuous annealing aluminum foil production process?
Aluminum is generally required aging, this process is just the opposite with annealing refers to aluminum produced insufficient hardness, increase the hardness after aging treatment, making it difficult to deformation, anti-stress increase.
Annealing is to make aluminum foil becomes soft, soft, malleable aluminum foil like, if not annealed, rather hard to pull off aluminum foil and other unexpected problems likely to occur in the rolling process. So after each rolling aluminum foil should make another annealing process, so as to ensure that the aluminum foil in the following rolling process smoothly.
Metal has a "hardening" of the problem. Aluminum after rolling hardening will occur. In this case, the hardness becomes higher ductility deteriorates, re-annealed to a soft state in order to further rolling.
