What are the properties of aluminum?
Aluminum has a sound-absorbing performance, the sound effect is also better, so the radio room, modern large-scale building interior ceiling also uses aluminum
Aluminum reflection of the light is also very good, reflective UV than silver, aluminum more pure, the better the ability to reflect, it is often used to create high-quality mirrors, such as solar cookers and so on.
(1) aluminum density is very small, only 2.7 g / cm3, although it is relatively soft, but can be made of various aluminum alloys, such as hard aluminum, super-hard aluminum, rust aluminum, cast aluminum and so on.
(2) aluminum conductivity after silver, copper, although its conductivity is only copper 2/3, but the density of copper only 1/3, so the same amount of electricity, the quality of aluminum wire only half.
(3) aluminum is a good conductor of heat, its thermal conductivity than iron 3 times, the industry can use aluminum to create a variety of heat exchangers, heat sinks and cooking utensils.
(4) aluminum has good ductility (its ductility is second only to gold and silver).
(5) the surface of aluminum due to a dense oxide protective film, not susceptible to corrosion,
(6) aluminum powder with silver and white luster (the general metal in the powder when the color is mostly black), commonly used to do paint, commonly known as silver, silver paint, to protect the iron products are not corrosive, and beautiful.
(7) Aluminum in the combustion of oxygen can release a lot of heat and dazzling light
Aluminum heaters are often used to melt refractory metals and welded rails. Aluminum is also used as a deoxidizer in the process of steelmaking. Aluminum powder and graphite, titanium oxide (or other high melting point metal oxide) according to a certain ratio of uniform mixing, coated on the metal, the high temperature calcination and made of high temperature resistant cermet, it has important applications in rocket and missile technology The
