Compared with the iron it is not easyto corrosion

Itsconductivity is about two thirds of the copper, but because of fine mist sprayer its density isonly one-third of the copper, so that compared with copper lines, in the samequality and length, the conductivity of aluminum is about twice of the copper,and the price is lower. So most of the outdoor high-voltage lines are made ofcast aluminum, saved a large number of cost, ease the tension of copper. The thermalconductivity of aluminum is three times larger than iron. In industry, aluminumis commonly used to manufacture various heat exchangers, cooling materials. Manykinds of cookware are made of aluminum.

Compared with the iron, it is not easyto corrosion, extend the service life. Aluminum powder has a silvery sheen, oftenmixed used with other substances to be coatings, brushing the surface of theiron products to protect iron products from corrosion, and have beauty effect.Since aluminum burning in oxygen will give out a dazzling white light and emita lot of heat, so it is often used to make some explosive mixtures, such asammonium aluminum explosives. In themetallurgical industry, thermite is often used to melt refractory metals. Suchas aluminum powder mixed with iron oxide powder will react violently,transports used it to weld rails. Aluminum is often used as a deoxidizer insteel industry; smooth aluminum plate has good light reflecting properties, canbe manufacturing high quality mirrors, condenser bowls. Aluminum also has agood acoustic performance, according to this characteristic, some of the radioroom, modern large building ceilings also use aluminum. Pure aluminum wasrelatively soft, in 1906, German adding a small amount of magnesium, copper inaluminum, prepared tough aluminum alloy. In the later decades of thedevelopment process, people according to different needs, developed a lot ofaluminum alloys, plays a very important role in many areas. Metal powder supplier found that some metals add asmall amount of aluminum can be greatly improved its performance.

Such as GreenCopper (contains 4% to 15% of aluminum), this kind of alloy has high strengthcorrosion resistance, the hardness is closed to low carbon steel, and has ametallic luster which is difficult to be dimmed, commonly used in jewelery andconstruction industries; manufacturing machinery parts and tools; for picklingequipment and other equipments which are contacted with sulfuric acid,hydrochloric acid and hydrofluoric acid; manufacturing welding brush and handlefolder; heavy gear and worm, metal forming mold, tool guide, the tool whichwould not occur sparking, non-magnetic chain, pressure vessel, heat exchanger,compressor blades, ship propellers and anchors, etc. Adding magnesium inaluminum can be obtained aluminum-magnesium alloy, its hardness is much largerthan pure magnesium and aluminum, and retains the characteristics of lightweight, commonly used in the manufacture of the aircraft fuselage, rocket body;manufacture doors and windows, beautify the home environment as well as manufacturingvessels. Aluminizing,to make the surface of the ordinary carbon steel or cast iron formed a heatresisting aluminum oxide film to protect the inside iron, is one of thechemical treatment methods in steel. Aluminum is a very important metal, aluminumplate alloy is adding various alloying elements in the aluminum processing (themain alloying elements are copper, silicon, magnesium, zinc, manganese, the secondaryalloy elements are nickel, iron, titanium, chromium, lithium, etc.), to improvethe mechanical properties and chemical indicators of aluminum. Aluminum platealloy has some special properties which are pure aluminum do not have, widelyused in special circumstances, such as ships, refrigerators, mold, aerospaceequipment, and so on. Article Source:

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