How to distinguish a good quality aluminum alloy ladder


General term for aluminum alloy ladders based on alumin […]

General term for aluminum alloy ladders based on aluminum. The main alloying elements are copper, silicon, magnesium, zinc, and manganese, and the minor alloying elements are nickel, iron, titanium, chromium, and lithium. Aluminum alloy ladders have low density, but high strength, close to or exceeding high-quality steel, good plasticity, can be processed into various profiles, and have excellent electrical conductivity, thermal conductivity, and corrosion resistance. They are widely used in industry, and the usage is second only steel. Aluminum alloy ladders are divided into two categories: cast aluminum alloys, which are used in the as-cast condition; deformed aluminum alloys, which can withstand pressure processing, have higher mechanical properties than the as-cast condition. It can be processed into various shapes and specifications of aluminum alloy materials. Mainly used in the manufacture of aviation equipment, daily necessities, construction windows and doors. Aluminum alloys can be divided into deformed aluminum alloys and cast aluminum alloys according to processing methods. Deformed aluminum alloys are divided into non-heat-treatment-reinforced aluminum alloys and heat-treatment-reinforced aluminum alloys. The non-heat-treatment-reinforced type cannot improve mechanical properties through heat treatment, and can only be strengthened through cold working deformation. It mainly includes high-purity aluminum, industrial high-purity aluminum, industrial pure aluminum, and rust-proof aluminum. Heat-treatment-reinforced aluminum alloys can be improved in mechanical properties through heat treatment methods such as quenching and aging. It can be divided into hard aluminum, wrought aluminum, super-hard aluminum, and special aluminum alloys. Some aluminum alloy ladders can be heat treated to obtain good mechanical properties, physical properties and corrosion resistance. According to the chemical composition, the cast aluminum alloy can be divided into aluminum-silicon alloy, aluminum-copper alloy, aluminum-magnesium alloy, aluminum-zinc alloy, and aluminum rare-earth alloy. Among them, aluminum-silicon alloy has simple aluminum-silicon alloy (cannot be strengthened by heat treatment, low mechanical properties, casting Good performance), special aluminum-silicon alloy (can be heat treated to strengthen, high mechanical properties, good casting properties).