Aluminum foil is a thin sheet material made from pure aluminum or aluminum alloys through a rolling process, typically with a thickness between 0.005 mm and 0.2 mm. Its main component is aluminum, and it may contain small amounts of other metallic elements (such as manganese and silicon) to enhance specific properties. Aluminum foil is lightweight, highly ductile, corrosion-resistant, has good thermal and electrical conductivity, and excellent barrier properties (moisture-proof and oxidation-proof), making it widely used in food packaging, electronic components, building insulation, and pharmaceutical packaging.
From a manufacturing perspective, aluminum foil production involves multiple processes, including casting, hot rolling, cold rolling, and annealing. The cold rolling stage is particularly critical for thickness control, requiring precision rolling mills to roll the aluminum material to the micron level. Industry standards (such as GB/T 3198-2010) have specific requirements for the chemical composition, mechanical properties, and surface quality of aluminum foil. Electronic-grade aluminum foil also requires high-purity aluminum purification (purity ≥99.9%) and special surface treatment to meet the performance requirements of precision components such as capacitors.
Usage Precautions:
Avoid contact with strong acids and alkalis to prevent corrosion; For high-temperature applications, select heat-resistant models (e.g., 3-series aluminum alloys can withstand 400℃); When slitting, it is recommended to use professional cutting tools to maintain stable tension (20-50 N/mm² recommended) and prevent edge burrs. We currently offer electronic aluminum foil products made of high-purity aluminum, with thicknesses ranging from 0.005-0.2mm, widths customizable up to 1800mm, and temperature resistance up to 400℃. The core is sturdy and durable. Welcome to contact us for the best solutions.
