8011 aluminum foil coil jumbo roll
|application||widely used in household commodity packaging|
|surface||one side bright,one side matt|
|packaging||free fumigted wooden box|
wrap aluminum foil roll
The production process of aluminum foil paper
Regarding the source of aluminum foil, we will start with its raw materials ...
Bauxite is currently the main ore resource in alumina production. More than 99% of the world’s alumina is produced using bauxite as raw material.
Bauxite undergoes the Bayer process (Bayer process is a widely used industrial chemical process to produce alumina from bauxite, invented by the Austrian engineer Karl Joseph Bayer in 1887) to become alumina
Alumina continues to be electrolyzed and becomes an aluminum ingot.
After the aluminum ingots are added with ingredients, they go through a series of processes of melting furnace-standing furnace-degassing box-filter box-casting mill-shearing-crimping to become a large coil prototype aluminum plate, that is, cast-rolled billet.The thickness of the cast-rolled billet is basically 6.5mm-7.5mm, and the diameter is 1.6-2.1m
Next, the billet will undergo multiple cold rolling processes on the rolling mill, and after repeated thinning, it will become a large coil of aluminum foil.