Magnesium is a new type of light and corrosion-resistant metal material developed in the 20th century. Its application is mainly concentrated in the four fields of magnesium alloy production, aluminum alloy production, steelmaking and desulfurization, aviation and military industry, and it is widely used in the automobile manufacturing industry, light industry, metallurgy industry, chemical industry, electronics industry and instrument manufacturing industry. Magnesium alloys are favored by manufacturers of computers, home appliances and mobile phones for their excellent performance and beautiful body.
It has the advantages of low specific gravity, high strength per unit weight and high chemical stability, which makes aluminum-magnesium alloy and its magnesium die castings highly favored and the magnesium metal industry develops rapidly. The application of magnesium alloy in the automobile industry has the advantages of high strength, heat resistance, wear resistance and light weight, making it gradually replace the plastic products and steel parts with a large proportion in the automobile industry, mainly replacing the original engine, steering wheel, seat base and so on. The United States, for example, gm's "Polaris V - 8" engines have 15 pounds (6.8 kg) of magnesium die casting parts, and the engine assembly in Cadillac vehicles, the company annual production of 25000 ~ 30000 in the mid - 90 - this kind of car, one requires magnesium, gm's annual output has remained at more than 9 million vehicles, Japan's Toyota car production with gm, only for the two companies for the demand of magnesium alloy is enough to make metal magnesium production enterprise with excitement.