The Property and Function of Aluminum

25.06.15 / aluminum heat sink / Author:
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Aluminum, is a kind of chemical elements, whose chemical symbol is Al. the amount of the Aluminum in the earth’s shell is just only inferior to Oxygen and Silicon. It ranks the third. From this point, it can be concluded that Aluminum is one of the richest metallic elements in the earth’s shell. Among so many kinds of metals, except the steel, Aluminum belongs to the largest category. At the end of the 19th century, Aluminum finally made a great figure and became the competitive metal in the engineering application.

Why does Aluminum become so popular in so many industries, such as aviation, construction and automobile? There is no doubt that it has a direct relationship with the particular properties of Aluminum. To a great degree, the function of the material depends on its properties. Because Aluminum is characterized by so many excellent natures, its application is quite wide.

Therefore, if the transported electricity are the same, the length of the aluminum heat sink wire is about half of the copper wire. In the industrial application, the cost can be reduced if people use the Aluminum wire. Thirdly, Aluminum is a good conductor. Its thermal conductance is about four times of the iron’s thermal conductance. Owing to this property, Aluminum is often used to manufacture all kind of heat changer, heat sink material and cookware. The ductility of Aluminum is also a good property. Under 100 degree Celsius ~150 degree Celsius, Aluminum can be made into the thin aluminum foil. The foil is commonly used to pack the cigarette or candy. What’s more, owing to its low temperature resistance, Aluminum is the ideal material for the cryogenic equipments, such as cold store, freezer or the automobile driven in the polar circle.

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