I. What is an aluminum ingot
Aluminum ingot is a silvery-white metal. It is a raw material in daily industry and is also known as standard aluminum. The density of aluminium ingots is relatively low, being only 34.61% of that of iron and 30.33% of that of copper. Therefore, they are widely used in the manufacture of land, sea and air transportation vehicles such as automobiles, trains, subways, ships, aircraft, rockets and spaceships to reduce their own weight and increase the loading capacity.
The production of aluminium ingots is mainly carried out through electrolysis, using alumina and cryolite as raw materials. After aluminum ingots enter industrial applications, they are mainly divided into two categories: cast aluminum alloys and wrought aluminum alloys. Among them, cast aluminum and aluminum alloys are castings of aluminum produced by casting methods. Wrought aluminium and aluminium alloys are processed products of aluminium produced by pressure processing methods, including plates, strips, foils, tubes, bars, sections, wires and forgings.
The chemical formula of aluminium ingot is Al, and its density is 2.7103g/cm³, which is approximately one-third of that of steel, copper or brass. Pure aluminum ingots are refined from high-purity (over 99.7%) aluminum. When directly used in casting, they offer excellent toughness for castings but lack strength and have poor physical properties.
Ii. What are the functions of aluminum ingots
Aluminum ingots are an important industrial raw material with a wide range of applications, mainly including the following aspects:
Made of aluminum alloy
Aluminum ingots are the raw materials for aluminum alloys and can be used to manufacture various types of aluminum alloy products, such as aircraft, automotive parts, building materials, electronic devices, etc. Aluminum alloy has the advantages of light weight, high strength and corrosion resistance, and is widely used in industrial manufacturing.
2. Chemical industry
Aluminum ingots can be used to produce active metallic aluminum in chemicals, such as aluminum hydroxide and alumina. These products have wide applications in the chemical industry, such as various aluminum salts, fireproof materials, ceramic materials, etc.
3. Power industry
Aluminum ingots can be used to manufacture conductive aluminum, which is an important material for power transmission lines. Because aluminium has poorer electrical conductivity than copper but a lower price, it is widely used in large-scale power transmission projects.
4. Packaging industry
Aluminum ingots can be used to produce aluminum foil, which is a thin and foldable metal material with excellent barrier properties. It can be used to package food, medicine, tobacco and other products, ensuring product quality and extending shelf life.
5. Manufacturing Industry
Aluminum ingots can be used to manufacture various aluminum products, such as aluminum plates, aluminum tubes, aluminum profiles, etc. These products are widely used in construction, aerospace, transportation and other fields.
6. Other industries
Aluminum ingots can also be used to produce manganese-aluminum alloys, silicon-aluminum alloys, etc. These alloys have important applications in metallurgy, metal processing, power and other fields.
Overall, aluminium ingots are a very important industrial raw material, closely related to people's production and life.