Az80 Magnesium Alloy Bar Zk60 Extruded Magnesium In Automobiles

Fast Heat Dissipation Magnesium Alloy Bar For Automobile Industry

Introduction:

The crystal structure of magnesium and the electronic structure of the outer layer of the nucleus determine that magnesium and its alloys have special physicochemical properties and mechanical properties. Due to the low strength of pure magnesium, it is rarely used in industry as a structural material. Like other non-ferrous materials, materials scientists have been developing industrial magnesium alloys using alloying techniques for more than a century. After proper alloying, the strength of magnesium can be significantly improved. Compared with other materials, magnesium and magnesium alloys have many performance characteristics.

Features:

• Low density, the density of pure magnesium is only 1.74g/cm3, which is about 2/3 of aluminum and 1/4 of steel, close to the specific gravity of engineering plastics. It is the lightest structural alloy, which can effectively reduce the weight of components and save energy. energy consumption;
• The specific strength and specific stiffness are large, and the specific strength of magnesium alloys is not only higher than some high-strength steels, but even higher than aluminum alloys;
• Good thermal conductivity, large expansion coefficient, low elastic modulus, slightly inferior to general aluminum alloys, 300 times that of general engineering materials, and low-temperature dependence, can be used to manufacture electronic products requiring good heat dissipation performance;
• It has good damping performance, strong absorption capacity and strong shock absorption, which can be used in situations with severe vibration, and can enhance the safety and comfort of automobiles when used in automobiles;
• Magnesium alloy is a non-magnetic shielding material with good electromagnetic shielding performance and strong anti-electromagnetic wave interference ability, which can be used in communication products such as mobile phones;

Processing performance advantage:

1. The melting cost is only 2/3 of that of aluminum:

2. Excellent die-casting formability: magnesium alloy can be die-casting to manufacture complex parts and ultra-thin shell parts, the thinnest can reach 0.45mm (ABS plastic is 1.2-2mm, aluminum alloy is 1.5-2mm), and the surface quality of magnesium castings and The appearance is obviously better than that of aluminum: the affinity of magnesium die castings and molds is much lower than that of aluminum, and the life of molds is more than 2 times that of aluminum.

3. The production efficiency of die casting is 25% higher than that of aluminum, the metal mold casting is 300-500K higher than that of aluminum, and the lost foam casting is 200% higher than that of aluminum.

4. Good cutting performance: magnesium alloy has low hardness and good cutting performance. The cutting resistance is only 56% of aluminum alloy and 43% of brass. High cutting speed and cheap cutting can be used during processing. Cutting tools, low tool consumption. And without grinding and polishing, you can get a very smooth surface with cutting fluid.

Application:

At present, most of the parts made of magnesium alloys in automobiles are die castings. Magnesium alloy die castings are the lightest among all die casting alloys and their service life is longer than that of aluminum alloys.

Magnesium alloy die-casting parts are mainly used for the production of automobile instrument panels, seat frames, transmission housings, steering wheel control system components, engine parts, door frames, wheel hubs, brackets, clutch housings, body brackets, etc.

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