The painted aluminum coil refers to the coloring treatment of the surface of the aluminum coil. It not only has beautiful color, but also has strong acid and alkali corrosion resistance, weathering resistance, ultraviolet radiation resistance and weather resistance.
The pre-painted aluminum coil has stronger anti-oxidation ability than plain aluminum coil. Although a dense aluminum oxide film on the aluminum surface can prevent corrosion by cold nitric acid and acetic acid, However, in alkalis and salts containing gas ions such as sodium chloride, this oxide film will be destroyed, causing strong corrosion of aluminum. The painted aluminum coil can make it.
According to its chemical composition and manufacturing process, the color-coated aluminum coil can be divided into deformed aluminum alloy and cast aluminum alloy. According to its heat treatment characteristics, it can be divided into heat treatment strengthened and non-heat treated strengthened aluminum alloy.
Non-heat-treated strengthened aluminum alloys include two types of aluminum-manganese and aluminum-magnesium alloys. The alloys are characterized by medium strength, good plasticity, satisfactory weldability, high vibration resistance and outstanding corrosion resistance.
The coated aluminum coils re widely used in aluminum-plastic panels, honeycomb panels, thermal insulation panels, aluminum curtain walls, shutters, roller shutters, aluminum-magnesium-manganese roof systems, aluminum ceilings, household appliances, downpipes, aluminum cans and many other fields.
Among food packaging, color-coated aluminum is mainly used to make food cans, including can lids, pull cans, food boxes and packaging sealed bags. Taking the pull ring as an example, there are currently three categories of aluminum easy-open lids: the first category is porridge and beer; the second category is beverages; and the third category is dry powder category.
Haomei Aluminum has rich colors of painted aluminum coil for you to choose from. We also support your customized requirements. Welcome to leave message below to inquire it.