Aluminum foil is a kind of aluminum rolled material. Aluminum foil is mainly about thickness. In the industry, aluminum products with a thickness less than 0.2mm are usually called aluminum foil. The edges are usually cut vertically and delivered in rolls. Aluminum foil is a soft metal film. It not only has the advantages of moisture-proof, air-tight, light-shielding, abrasion resistance, fragrance retention, non-toxic and tasteless, but also because of its elegant silver-white luster, it is easy to process beautiful patterns and colors of various colors. pattern.
According to thickness, aluminum foil can be divided into double zero foil, single zero foil and thick foil. Double-zero foil refers to a foil that has two zeros after the decimal point when its thickness is measured in mm (i.e. thickness <0.01mm); similarly, single-zero foil refers to a foil that has one zero after the decimal point when its thickness is measured in mm. Foil (0.01mm≤thickness<0.1mm); thick foil refers to aluminum foil with a thickness between 0.1mm and 0.2mm.
Generally speaking, double zero foil is mainly used for food packaging, cigarette packaging, electronic optical foil, etc.; single zero foil is used for some food packaging, pharmaceutical packaging, electronic circuit signal shielding, air conditioning foil, etc.; thick foil is mainly used for air conditioning foil, Container foil, architectural decoration and industrial uses.
Production Process
The aluminum foil processing process is the aluminum product with the most processing steps, the smallest thickness, and the most difficulty in the aluminum processing industry. At present, there are two commonly used processing technology routes in the industry: (1) Ingot hot rolling method; (2) Double-roller casting and rolling method.
