Magnesium-lithium alloy is the lightest metal structural material in the world. It has the characteristics of low density, high specific damping coefficient, high specific strength, high specific stiffness, high specific modulus, etc. It has good electrical and thermal conductivity, outstanding shock absorption performance, Excellent electromagnetic shielding performance and many other advantages.
Magnesium-lithium alloy is one of the materials with the best weight reduction effect among aerospace metal materials. Replacing magnesium alloy, aluminum alloy and carbon fiber composite material with magnesium-lithium alloy can achieve a weight reduction effect of 20-50%. noise, shielding electromagnetic interference, etc.
Magnesium-lithium alloy is also the most difficult light alloy material to prepare in the world. It is processed from the lightest metal element lithium and the lightest structural metal magnesium. Since both magnesium and lithium are highly active metals, the preparation of magnesium-lithium alloys is difficult and has a high risk factor, which is a recognized problem in the world. In the past, only the United States and Russia were able to industrially produce magnesium-lithium alloys.
After years of scientific research, China ZZQY Light Alloy Technology Corporation has broken the technological monopoly of the United States and Russia, and overcome the problems of flammability and explosion in the preparation of magnesium-lithium alloy casting. The first company to use vacuum technology to industrialize magnesium-lithium alloys has developed a series of magnesium-lithium alloys with different densities and strengths, among which the lightest magnesium-lithium alloys can float on the water.
Compared with the "flux method" in the United States and the "protective atmosphere + semi-continuous casting method" in Russia, ZZQY's vacuum induction casting technology does not use flux and harmful protective gases, which not only solves safety and environmental problems, but also the magnesium-lithium prepared by ZZQY. The alloy impurity content is also lower than the American and Russian standards. The company's magnesium-lithium alloy production capacity has also surpassed that of the United States and Russia. ZZQY's magnesium-lithium alloy output accounts for more than 70% of the world's output.
The magnesium-lithium alloy developed by ZZQY has been successfully applied to more than 50 satellites, making the relevant components of the satellite achieve a weight reduction effect of about 40%, and greatly improving the payload and specific impulse of the satellite.
In addition, ZZQY has developed the world's first set of magnesium-lithium alloy optoelectronic pods, which are used in Chinese helicopters and have passed the test of high temperature, high cold, high salt and other complex environments. ZZQY's magnesium-lithium alloys are also used in the world's first pilot's head sight using magnesium-lithium alloy components, the world's first magnesium-lithium alloy quad-rotor explosion-proof drone, China's first magnesium-lithium alloy gyroscope, and more than 1 million laptops…
In addition, ZZQY has conquered the rolling technology of magnesium-lithium alloy ultra-fine foil, and mass-produced the world's thinnest 14-micron magnesium-lithium alloy ultra-thin foil, filling the gap in the world.
Magnesium-lithium alloy foil can be used in acoustic acoustic films, acoustic equipment, shielding foils for aerospace, etc., while achieving weight reduction, it can also improve the fidelity of sound quality, the sensitivity of acoustics, and the accuracy and safety of signal transmission .
Chinese companies engaged in the R&D and production of magnesium-lithium alloys also include XASF Light Alloy Material Technology Corporation. The ultra-light magnesium-lithium alloys developed by XASF are used in China's Zhurong Mars rover, Tianwen-1 orbiter, Chang'e-5 probe, lobster eye X-ray detection satellites and other spacecraft.