ã€Aluminum Road Network】 The world is rich in magnesium resources. Today, as many metals are depleted, it is of great strategic importance to accelerate the development and application of magnesium materials. Metal magnesium was discovered in the early 19th century. After being promoted by research in the United States, China, Germany, Japan, Britain, and Australia, the magnesium and magnesium alloy industries have developed rapidly. First, the early development of magnesium and magnesium alloys In 1808, British chemist Sir Humphrey Davy first produced metallic magnesium by means of a molten electrolysis process. In 1828, the French scientist A.A. Bussy used the reduction method to obtain pure magnesium from molten anhydrous magnesium chloride. In 1886, based on Bunsen's electrolytic cell, Germany established the first commercial electrolytic magnesium plant, and magnesium alloys began industrial production in Germany. In 1910, the world's magnesium production was about 10 tons/year. In 1930, Germany used 73.8Kg of magnesium alloy for automobiles for the first time. In 1935, the Soviet Union used magnesium alloy for aircraft production for the first time. The German public used die-casting magnesium alloy to produce parts of the Beetle automotive engine transmission system. Birmingham, UK, used magnesium alloy for the first time. In the case of motorcycle gearboxes, by 1930, the world's magnesium production increased to 1200 tons/year. During the Second World War, it was the first rapid development period of the magnesium industry. Since 1935, Germany, France, the Soviet Union, Austria, Italy, the United States and other countries have established magnesium plants, respectively, and the magnesium production capacity has increased dramatically. During this period, magnesium is mainly used to make combustion. Bullets, flares, tracers, signal bombs, and parts of military equipment. In 1943, the world's magnesium production reached 230,000 tons. However, after the end of World War II, the demand for magnesium decreased, and production dropped sharply. In 1946, world magnesium production dropped to only 25,000 tons/year, and magnesium alloy development entered a low tide. At this time, all countries in the world began to consider the possibility of the development of magnesium alloys in civilian industries. The development of magnesium alloys gradually turned to civil use. Until the 1990s, due to the further upgrading of automobile exhaust emissions, energy consumption, and noise restrictions in Europe and the United States, high demands for weight reduction and improved fuel use have forced auto companies to develop magnesium alloys. Since then, governments around the world have attached great importance to the research and development of magnesium alloys. The United States, Japan, Germany, Australia and other countries have successively issued their own magnesium alloy research plans, and magnesium has been used as an important strategic material in the 21st century to strengthen magnesium alloys in computers. , automotive, aerospace, communications and other fields of development and application. In 1997, the Federal Government invested 25 million marks in the research and development of MADICA (Magnesium Die Casting) magnesium alloys, focusing on rapid prototyping and tool manufacturing technology, cutting technology, die-casting magnesium alloy technology, joining technology and semi-solid forming process. And magnesium alloys are applied in the automotive, computer, aerospace and other fields to improve the application of magnesium alloys. The Ministry of Education, Culture, Sports, Science and Technology of Japan also began funding the Advanced Magnesium Alloy Science and Technology Program in 1999. It was jointly completed by Changgang University of Science and Technology, Tokyo University, Tohoku University, National Institute of Materials and more than 10 institutions, aiming to solve future magnesium alloys. The application issues, the main research directions are: magnesium alloy structure control, magnesium alloy surface modification, magnesium alloy ecological technology and the development of new functional materials. Since 1992, due to the rapid development of China's use of the Pidgeon method, the price of raw magnesium has been reduced to a level comparable to that of aluminum, prompting magnesium alloys to enter a second period of rapid development. Driven by the increase in magnesium prices in the international market in 1995, it has reached a construction climax. With the continuous improvement and improvement of the production technology of magnesium from the Pijiang River, China has gradually embarked on the road to the magnesium industry in line with China's national conditions. Although magnesium prices fell in 1996, China's raw magnesium production has maintained a rapid growth momentum. China's production of pure magnesium increased from 0.53 million tons in 1990 to 157,000 tons by the end of 1999. The major European and American auto companies and the electronics industry have invested a lot of manpower, material and financial resources in the research and development of magnesium alloy auto parts and electronic consumer goods, driving the development and application of magnesium alloys. In 2000, the actual output of magnesium in the world reached 430,000 tons, of which China's magnesium production reached 19.5 tons. The magnesium alloys developed and applied at this time are mostly die-cast magnesium alloys. Second, the development of magnesium alloy in the 21st century In the 21st century, with the rapid development of the automotive industry, rail transit, aerospace and electronic products industries, and people’s pursuit of high quality of life, the demand for environmentally friendly, lightweight, and high-performance materials is increasing. The governments of various countries and the magnesium alloy association have successively proposed the development of new high-performance magnesium alloys, the development of new processes and technologies for the production and processing of magnesium alloys, and the production of high-quality, stable-performance diversified, multi-standard magnesium alloy products, improving product yield and production efficiency. Promote the further industrial production and application of magnesium alloy materials. The scale industrialization of magnesium alloys in the world is gradually being realized, and the development of magnesium alloys has entered a new round of new high-speed development period. In recent years, the cost and environmental factors that have constrained the development of the magnesium industry have significantly improved. After the global financial crisis in 2008, the world magnesium industry, dominated by China's magnesium industry, was one of the fast-recovering material industries. In 2012, the output and consumption of the global magnesium industry has basically recovered to the level before the financial crisis, but the cost and price have dropped substantially. The original magnesium price has been reduced to less than 50% of the price in 2007, and the energy consumption of the magnesium industry Pollution has also been greatly reduced. At the same time, since 2013, China, as a global magnesium producer, has cancelled 10% of the export tariffs on magnesium and magnesium alloys that have been implemented since 2008, which has directly led to a 10% drop in magnesium prices in the international market. In recent years, China's magnesium production and exports have ranked first in the world for many years. In 2017, China's raw magnesium production reached nearly 1 million tons, accounting for about 80% of the world's total output. China's domestic consumption of primary magnesium exceeded exports for the first time. One of the important developments in the magnesium industry in recent years in China is the completion of the 100,000-ton magnesium metal integration project in Qinghai Salt Lake Magnesium, which shows a good momentum of development. The successful operation of this project can alleviate the price fluctuation of raw magnesium in Pidgeon caused by the price fluctuation of ferrosilicon to a certain extent. In the past ten years, the application of magnesium alloys has increased significantly. According to preliminary statistics, the use of magnesium alloy has increased to about 400,000 tons. This shows that while magnesium alloy industry technology is developing rapidly, magnesium alloy products have begun to gain more and more applications in the field of application. At the same time, the policy environment for the magnesium industry has gradually improved. In particular, in 2016 China’s national leaders inspected the Qinghai Salt Lake Metal Magnesium Integration Project, which will effectively safeguard and promote the healthy development of the magnesium industry from the national policy level. All these have created good cost conditions and environmental foundations for the sustainable development of the world's magnesium industry. Magnesium alloy market demand significantly increased, further development of the magnesium industry technology and further improvement of the industrial policy environment, is expected to promote the magnesium industry from million tons to more than 5 million tons in 5-10 years. Third, the conclusion From the discovery of magnesium in the 19th century to the present day that magnesium alloys have developed into one of the potential metallic materials in the 21st century, magnesium alloys are becoming strategic materials for global attention. With the continuous emergence of new magnesium alloy materials and new technologies, magnesium alloys will play an increasingly important role in the economic and social development of the world today. Aluminum Sliding Door,Sliding Glass Door,Aluminum Glass Sliding Door,Modern Sliding Doors Foshan City JBD Home Building Material Co.,Ltd. , https://www.jbdhome.com