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The Lightest Metal Structure Materials Developed In China Smile Proud Of Space

Jun 05, 2017

Xian, February 28, Xinhua (reporter Sang Jian) "We developed a new type of MG-li alloy, its density according to use can reach 0.96 to 1.64 grams per cubic centimeter, is the world's lightest metal structural materials. "February 28, in the Research and Development Laboratory of Xi ' an Sifang ultra light Material co., Ltd., director of Shanxi Magnesium-Lithium Alloy engineering Research Center, Professor Chaidongrang of Xi ' an Jiaotong university pointed to a piece of magnesium-lithium alloy test piece floating on the surface of the water to reporters. It is reported that December 22, 2016, China's successful launch of the first global carbon dioxide monitoring scientific experimental satellite ("Carbon satellite") in the high-resolution micro-nano satellite, almost the entire application of China's self-developed production of this super light material.

As the lightest metal structural material in the world today, MG-li alloy materials are made by adding lithium elements to metal magnesium, it has a low density, high specific stiffness, high specific strength of the excellent mechanical properties and damping, noise damping performance, as well as anti-radiation, electromagnetic interference performance, representing the development of magnesium alloy forefront of technology, known as the future the most "green environmental protection" revolutionary materials. Compared with aluminum alloy, the same size, weight is only half of the aluminum alloy, but higher than the strength of aluminum alloy. In addition, the damping performance of this new type of MG-Li alloy is excellent, it is more than 10 times times of aluminum alloy, the effect of damping and noise reduction is good, and it is outstanding in shielding electromagnetic interference.

It is reported that the MG-li alloy material greatly reduces the satellite weight, significantly improve the payload, reduce the launch cost. The material was first used and successfully launched in China's "Pujiang No. First" satellite in September 2015. Incomparable advantage makes its in aerospace, weapons military, electronic products, petrochemical, mechanical instrumentation, medical equipment, outdoor equipment, such as military and civilian areas have a wide range of uses.

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