The electrolytic aluminum ingot with a content of 99.35% to 99.97% is first trimmed on a milling machine to remove burrs, oxidation spots, bubbles and other defects on the surface of the aluminum ingot, and is processed into a flat and smooth aluminum block. The processed aluminum blocks are heated and then hot-rolled or annealed and then cold-rolled into aluminum sheets with a thickness of 3.175 to 0.584 mm. Then the aluminum sheet is annealed and passed through single or double layers (when the aluminum sheet is rolled to a thickness of about 0.038mm, two aluminum sheets can be put into the rolling mill at the same time and the two sheets are rolled together into aluminum foil). Rolling, the metal aluminum foil film made by rolling is called calendered aluminum foil (metal aluminum foil or pure aluminum foil), which is also commonly known as aluminum foil.
Commonly used alloys for rolled aluminum foil include 1050, 1100, 1200, 1145, 8011, 3003, 3005, etc. It has good waterproof, moisture-proof, anti-static, anti-electromagnetic interference and electrostatic shielding functions, high mechanical strength and good heat sealability. It is a very common packaging aluminum foil, suitable for various packaging products, such as: chemical industry, electronics, batteries, food, medicine and other fields.
Aluminum foil rolling process:
Soaking--hot rolling--intermediate annealing--cold rolling--final annealing--grease coating--cutting
MC Aluminum is a professional aluminum foil manufacturer, supplying aluminum foil, semi-hard aluminum foil, single zero foil, double zero foil, thick aluminum foil, etc. The products have excellent quality and advanced technology, and are exported overseas. After-sales service is guaranteed, and factory direct sales have discounts.