Aluminum foil - The use of aluminum foil in daily production has been recognized by the majority of users and has a wide range of uses. Definition of aluminum foil: Aluminum foil is a very thin aluminum coil, strip or sheet obtained by rolling aluminum and aluminum alloy plates and strips. In my country, aluminum and aluminum alloy plates and strips with a thickness less than 0.2mm are generally called aluminum foil.
Classification of aluminum foil: According to shape, it can be divided into rolled aluminum foil and sheet aluminum foil. The vast majority of aluminum foil products are supplied in roll form. Only a few handicraft packaging users use sheet aluminum foil. According to thickness, it can be divided into three types: thick foil, single zero foil, and double zero foil. Thick foil is a foil with a thickness of 0.1-0.2㎜, single-zero foil is a foil with a thickness of 0.01㎜ and less than 0.1㎜, and double-zero foil is a foil with two zeros after the decimal point when the thickness is measured in mm.
According to the state, it is mainly divided into full hard state foil, soft state foil, semi-hard state foil, quarter hard foil and three-quarter hard foil. According to the surface state, it can be divided into single-sided light foil and double-sided light foil. , according to the use, it is divided into packaging foil, daily necessities foil, electrical equipment foil and construction foil. The properties of aluminum foil: thin and light, high specific strength, good gloss, high thermal conductivity and electrical conductivity, high moisture resistance , non-toxic, odorless, excellent light shielding, heat insulation, and excellent corrosion resistance.
Aluminum and aluminum alloy trademarks and status: In the past, the unified domestic method of identification was used, that is, Chinese pinyin plus a serial number. Since 1996, this method of identification has been discontinued. The international four-digit system is currently used. . The alloy trademark adopts a four-digit system representation method, in which: The digit represents the alloy series. If the digit is 1, it represents the pure aluminum series.
