Aluminum alloy for automobile material series to reduce the burden of automobiles

Aluminum alloy for automobile material series to reduce the burden of automobiles

As the jewel of modern industry, automobiles are made up of complex components, each of which uses very different materials due to different functions. We will use several issues of articles to give you a rough introduction to the common materials on automobiles. Today, let's take the lead in introducing aluminum alloys.

Because many car brands in the promotion, many times will use aluminum alloy materials on the body as a selling point, such as aluminum alloy suspension, aluminum alloy engine block or aluminum alloy frame, etc., giving people the feeling that aluminum alloy seems to be very valuable. But in fact, aluminum is one of the most abundant elements in the earth's crust, ranking third after oxygen and silicon. However, due to the chemical activity of aluminum elements, it exists in the form of compounds in nature, such as aluminosilicate ore, bauxite or cryolite. It is precisely because of this characteristic that human beings have gradually formed an industrial system of aluminum until the modern reduction of aluminum elements and the discovery of electrolytic aluminum methods. At present, aluminum is the second largest metal in the human industrial system, after steel. Because of its elemental properties of active, aluminum must be synthesized with other metallic or non-metallic substances to become a stable material, so it is called aluminum alloy.

A fundamental advantage of aluminum alloys over steel is their lighter weight. Why is aluminum alloy lighter? Because the density of aluminum is relatively small, the density of aluminum alloy material is 2.5-2.8g/cm3, while the density of steel is 7.8-8.7 g/cm3, in the same volume, the weight of aluminum alloy material is only 35-40% of steel, which can reduce the weight of the body to a limited extent.