Magnesium lithium alloy was launched with "carbon satellite"
on December 22, 2016, the long march 2D carrier rocket carrying China's first global carbon dioxide monitoring scientific experimental satellite (referred to as "carbon satellite") was successfully launched from Jiuquan Satellite Launch Center. This "carbon satellite" carries a total of four satellites developed by the Academy of microsatellite innovation, Chinese Academy of Sciences. This series of satellites mainly serve China's big data intelligent remote sensing applications, and provide efficient information support for China's disaster monitoring, disaster prevention and mitigation, ecological environment monitoring, agricultural ecology and environmental protection. Among the four small satellites, one is the "high resolution micro nano satellite". It is understood that this satellite is the first one in China to use almost all of Jinan assay, which is independently developed and produced by China, as an experimental machine. The manufacturer of such instruments is also committed to breaking through the difficulties of new magnesium lithium alloy materials. This is another great initiative after the new magnesium lithium alloy was partially used on the "pujiang-1" satellite for the first time in September 2015
the author learned that the new magnesium lithium alloy material is the result of the joint research and development of Xi'an Sifang ultra light materials company and Chai donglang, a professor of Xi'an Jiaotong University, which took a total of 8 years. After the cooperation, the first magnesium lithium alloy production line in China was built in 2010; At the end of 2012, a batch smelting production line was built in Xi'an Aviation base; In 2014, it passed the audit of the eighth Academy of Aerospace Science and technology, became a qualified supplier, and officially moved from the scientific research and experiment stage to the large-scale production stage; In September 2015, it was first used and successfully launched on China's "Pujiang for analysis and determination 1" satellite; In June 2016, it passed the expert review of the Fifth Academy of Astronautics, marking the full application of magnesium lithium alloy in spacecraft. This application can be said to be a major breakthrough in the history of magnesium lithium alloys in aerospace applications
magnesium lithium alloy material is one of the materials with the lowest density among structural metal materials at present. By adding lithium element to metal magnesium, its specific gravity is between 1.4g-1.6g/cm3, which is lower than 1.8g/cm3 of general magnesium alloy, and only slightly higher than plastic density, but its strength is 220mpa-340mpa. In addition to the ultra light characteristics, magnesium lithium alloy has excellent damping performance, which is more than ten times that of aluminum alloy. It has excellent shock absorption and noise reduction effect, and may cause damage to the equipment in shielding the wrong interface; The interface on the plug-in controller must be powered off, and the electromagnetic interference is also prominent. At the same time, it also has excellent characteristics of plastic processing and molding at room temperatureLocated in Xi'an Yanliang National Aviation high-tech industrial base, Sifang ultralight Materials Co., Ltd. is a company drafting China's first national standard for magnesium lithium alloy materials (magnesium lithium alloy ingot). It is mainly engaged in the R & D, production and sales of magnesium alloy materials, especially ultra light and high-strength magnesium lithium alloy materials and series of products. Three brands of ultra light magnesium lithium alloys with independent intellectual property rights and internationally advanced technology have been widely used in aerospace, aviation, military and civil fields
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