Az91 Magnesium Alloy Bar 1.74g/Cm3 Magnesium Metal Rod For Aerospace

Low Density High Strength Magnesium Alloy Bar For Aerospace Electronic Equipment Structural Parts

Introduction:

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

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;

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:

Structural parts with magnesium alloy as the base material are mainly used in special environments with strict requirements on the strength of structural parts, light equipment weight (the design weight is smaller than that of aluminum alloy), high electromagnetic shielding requirements, shock absorption, compression resistance and impact resistance. . Such as: aerospace parts, aerospace electronic equipment structural parts, UAV structural parts, reinforced computer structural parts, medical equipment structural parts, communication equipment structural parts, heat sinks, shielding boxes, electronic disks, thermal conductive plates, cameras, GPS positioning equipment, Radar receiving equipment, various types of handles, control panels, switches, etc.

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