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Zhengzhou Eming Aluminium Industry Co., Ltd. [Henan,China] Unternehmenstyp:Hersteller Hauptmärkte: Afrika , Amerikas , Asien , Karibik , Osteuropa , Europa , Mittlerer Osten , Nordeuropa , Ozeanien , Andere Märkte , Westeuropa , Weltweit Exporteur:91% - 100% Zert:ISO9001, FDA, RoHS, Test Report

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Aluminum Foil Material Classification and Production Knowledge Introduction

July 17, 2022

Aluminum foil can be divided into industrial aluminum foil and packaging aluminum foil. Industrial aluminum foil has a relatively pure chemical composition and a thickness of 0.005 to 0.2 mm. It is mainly used as a capacitor, thermal insulation material, and moisture proof material in the electrical and electronic industries. Packaging aluminum foil thickness is generally 0.007 ~ 0.1 mm, there are flat foil, printing foil, printing foil printing and crepe paper aluminum foil and other products, mainly used as food, tea, cigarettes and other packaging materials.

The aluminum foil can be produced in a strip production method with a thickness of up to 0.0025 mm and a width of up to 1800 mm. Aluminum foil rolling is no roll seam rolling, and the roll is always in an elastically compressed state. During rolling, the thickness of the foil is controlled by adjusting the rolling force, rolling speed and controlling the tension. In the rough rolling, the rolling force is used to control the thickness of the foil; in the finish rolling, the thickness of the foil is reduced as the rolling speed increases; the greater the tension, the smaller the thickness; in order to prevent the break, the tension is usually selected as the foil The material has a yield strength σ0.2 of 0.2 to 0.4. For low speed rolling, “thick oil” or “thin oil” is often added to the lubricating oil to adjust the rolling thickness of the aluminum foil. Lubricants and roll conditions have a very important influence on the foil quality. The aluminum foil blanks are from cold-rolled aluminum coils and are generally pre-annealed at 340-480°C and have a thickness of 0.4-0.7 mm. The duct deformation rate during rolling is about 50%, and the total deformation rate can reach 95% or more. Foil with a finished thickness of less than 0.01 to 0.02 mm should be rolled and double rolled.

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