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Magnesium alloy is an alloy based on magnesium with other elements added. Its characteristics are: low density (about <>./magnesium alloy), high specific strength, large elastic modulus, good heat dissipation, good shock absorption, and ability to withstand impact loads. It is larger than aluminum alloy and has better resistance to organic matter and alkali corrosion. The main alloying elements are aluminum, zinc, manganese, cerium, thorium and a small amount of zirconium or cadmium. Currently the most widely used is magnesium-aluminum alloy, followed by magnesium-manganese alloy and magnesium-zinc-zirconium alloy. Mainly used in aviation, aerospace, transportation, chemical industry and other industrial sectors. Magnesium, the lightest metal among practical metals, has a specific gravity of about aluminum/iron/. It is the lightest metal among practical metals with high strength and high rigidity. <>
Features
Its processing process, corrosion and mechanical properties have many characteristics: fast heat dissipation, light weight, good rigidity, certain corrosion resistance and dimensional stability, impact resistance, wear resistance, attenuation It has good performance and is easy to recycle; it also has high thermal and electrical conductivity, non-magnetic, good shielding and non-toxic characteristics.
Application scope: Magnesium alloys are widely used in portable equipment and the automotive industry to achieve lightweight purposes.
The current application parts of magnesium alloys in automobiles can be summarized into the <> category.
() Shell class. Such as clutch housing, valve cover, instrument panel, transmission body, crankcase, engine front cover, cylinder head, air conditioner casing, etc.
() Bracket class. Such as steering wheels, steering brackets, brake brackets, seat frames, mirror brackets, distribution brackets, etc.
According to relevant research, <>% of the fuel used by a car is consumed by the car's dead weight. Every % reduction in the car's dead weight can increase its fuel efficiency by more than %; every time the car's dead weight decreases, the fuel consumption per 100 kilometers can be reduced. Every time the car saves fuel, it can reduce emissions. . Annual emissions are reduced by more than %. Therefore, reducing the weight of cars has a great impact on the environment and energy. Lightweighting of cars has become an inevitable trend.
The size of LCD screens on mobile phones and laptops is increasing year by year, and magnesium alloys are used in their support frames and back casings. Although the thermal conductivity of magnesium alloy is not as good as that of aluminum alloy, it is dozens of times higher than that of plastic. Therefore, magnesium alloy used in electrical products can effectively dissipate internal heat to the outside.
Magnesium alloys are used in the casings and heat dissipation parts of computers and projectors that generate high temperatures inside. The use of magnesium alloy on the casing of the TV allows for no heat dissipation holes. Electromagnetic wave shielding: The electromagnetic wave shielding performance of magnesium alloy is better than that of electroplating shielding film on plastic. Therefore, the use of magnesium alloy can save the electroplating process of electromagnetic wave shielding film. Magnesium alloys are used in parts near vibration sources such as hard disk drive readout devices. Using magnesium alloy on the fan blades can reduce vibration and achieve low noise. In addition, magnesium alloy is used in the steering wheel and seats to improve impact absorption and reduce weight after the car is hit by a collision.
Large quantities of AZ61S magnesium alloy bright tape