Aluminum block is a kind of light metal, and its compound is widely distributed in nature. The resource reserves of aluminum in the earth's crust are second only to oxygen and silicon. Among all metal varieties, its output is second only to steel and is the second largest category of metals. Aluminum has special chemical and physical properties, not only light weight, strong texture, but also has good ductility, electrical conductivity, thermal conductivity, heat resistance and nuclear radiation resistance, so aluminum blocks also have the characteristics of aluminum. According to different compositions, aluminum blocks are divided into three types: aluminum blocks for remelting, high-purity aluminum blocks and alloy aluminum blocks. According to the shape and size, aluminum blocks can be divided into several ingots, round ingots, slab ingots, and T-shaped ingots.
The specific gravity of the aluminum block is 2.7, and the density is 2.72g/cm3, which is about 1/3 of the general metal. Aluminum has good plasticity and ductility, which is convenient for various cold and hot pressure processing. It can be made into aluminum foil with a thickness of only 0.006 mm, or it can be cold drawn into very fine aluminum wire. By adding other elements, aluminum can be made into an alloy to harden it, and its strength can even exceed that of structural steel, but it still maintains the advantage of lightness.
In the construction industry, due to the stability of the aluminum block in the air and the good appearance after anodization, it is more and more widely used in the construction industry, especially in aluminum alloy doors and windows, aluminum plastic pipes, Application of decorative panels and aluminum curtain walls.
In the transportation industry, in order to reduce the weight of the vehicles themselves, motorcycles, various automobiles, trains, subways, airplanes, ships and other transportation vehicles have begun to use aluminum blocks and aluminum alloys as components and decorations. With the continuous improvement of the hardness and strength of aluminum processing materials, the proportion used in the aerospace field has begun to increase year by year.