catalyzer
Thermit is commonly used to melt refractory metals and weld rails. Aluminum is also used as deoxidizer in steelmaking. Aluminum powder, graphite, titanium dioxide (or oxides of other high melting point metals) are uniformly mixed at a certain ratio, coated on the metal, and calcined at high temperature to make high-temperature metal ceramics, which have important applications in rocket and missile technology.
burning
Aluminum burning in oxygen can give off a lot of heat and dazzling light, which is often used to make explosive mixtures, such as ammonium aluminum explosives (made of aluminum powder, ammonium nitrate, charcoal powder, soot and other combustible organic substances), combustion mixtures (such as bombs and shells made of thermite can be used to attack targets difficult to fire or tanks, artillery, etc.) and lighting mixtures (such as aluminum powder 28%, barium nitrate 68% and shellac 4%).
Decorative
Aluminum powder has silver white luster (generally, the color of metal in powder form is black). It is often used as paint, commonly known as silver powder and silver paint, to protect iron products from corrosion and beautiful.
Low temperature resistance
It is resistant to low temperature. When the temperature is low, the strength of aluminum will increase without brittleness. Therefore, it is an ideal material for low-temperature devices, such as refrigerators, freezers, vehicles on Antarctic snow, and hydrogen oxide production devices.
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