The aluminum pan is light, durable, heats up quickly, conducts heat evenly, and does not rust. It is understood that aluminum products mainly include refined aluminum (soft aluminum) products and cast aluminum (hard aluminum) products, and the materials are aluminum and aluminum alloys. Surface color can be divided into white, light yellow and other colors. White aluminum products are divided into two types: casting and stamping. The surface of the cast aluminum product is polished and mechanically polished, and the surface is white, but the metal structure is loose, and there are certain casting defects. The surface of stamped aluminum products has been whitewashed, sanded and mechanically polished. The surface is a natural oxide film with a film thickness of only 0.01-0.15 μm, which is thin and uneven, and is easily scratched or worn by machinery. The yellow aluminum products are stamped products that have been anodized to form a light yellow artificial oxide film on the surface. The oxide film is generally 5-20μm thick, uniform and dense, and under the action of strong alkali, the film will not be damaged for 100 seconds. Therefore, light yellow aluminum products are the best, which have the characteristics of beautiful appearance, easy to remove dirt, strong corrosion resistance and strong wear resistance. Koreans use yellow aluminum pots to cook noodles.
In daily life, many people like to use steel wire balls to polish the bottom of aluminum pots. Experts say that although this method wipes off the stains on the pot, it also wipes off the protective oxide film on the surface of aluminum cookware. . Therefore, when using aluminum cookware such as aluminum pots and pots, it is not necessary to wipe off the light yellow rust on the surface.