The proportion of lighter metallic magnesium in practical metals is about 2/3 of that of aluminum and 1/4 of that of iron. It is a lighter metal in practical metals. Applications: Magnesium alloys are widely used in portable devices and in the automotive industry for light weight purposes. Although the specific gravity of high-strength, high-rigidity magnesium alloys is heavier than that of plastics, the strength and elastic modulus per unit weight are higher than that of plastics. Therefore, in the case of the same strength components, the parts of magnesium alloys can be made stronger than those of plastics. Thin and light. In addition, since the specific strength of the magnesium alloy is also higher than that of the aluminum alloy and iron, the weight of the aluminum or iron component can be reduced without reducing the strength of the component. Applications: Mobile phones. The size of LCD screens on laptops has been increasing year after year. Magnesium alloys have been used on their branch frame and on the back of the case. Good Heat Conductivity Although the thermal conductivity of magnesium alloys is less than that of aluminum alloys, it is tens of times higher than that of plastics. Therefore, magnesium alloys are used in electrical products to efficiently dissipate the heat inside. Applications: Magnesium alloys are used on housings and heat sinks for internally generated high-temperature computers and projectors. The use of magnesium alloy on the outer cover of the TV allows for no vents. The electromagnetic wave shielding performance of the good electromagnetic shielding effectiveness of the magnesium alloy is better than that of plating the shielding film on the plastic. Therefore, the use of the magnesium alloy can eliminate the electroplating process of the electromagnetic wave shielding film. Applications: Magnesium alloys are used in the housing and shielding materials of mobile phones. Good machining performance Magnesium alloys have lower cutting resistance than other metals and can be machined at higher speeds during machining. Table: Cutting resistance of various metals (with a cutting resistance of magnesium alloy of 1) Good resistance to dents Magnesium alloys have higher resistance to deformation than other metals, and the dents caused by collisions are smaller than other metals. High vibration/impact absorption Due to the good absorption of vibrational energy by magnesium alloys, vibrations can be reduced by using components for driving and transmission. In addition, magnesium alloys with better impact energy absorption performance and better elongation than aluminum alloys can absorb impact energy without cracking after being impacted. Applications: Magnesium alloys are used on parts near vibration sources such as reading devices of hard disk drives. If magnesium alloys are used on the fan blades, vibrations can be reduced to a low level. In addition, magnesium alloys are used on steering wheels and seats in order to increase impact absorption and reduce weight after the car is hit. Good Creep Resistance Magnesium creeps less in size over time and temperature. Unlike plastics, magnesium alloys can be simply recycled without degrading their mechanical properties, while plastics are difficult to regenerate without reducing their mechanical properties. Compared with other metals, magnesium alloys have a low melting point and a low specific heat. The energy consumed for regenerative melting is 4% of the energy consumed by new materials. The density of magnesium alloy is less than 2g/cm3. It is a lighter metal structural material. Its specific strength is higher than that of aluminum alloy and steel, and slightly lower than that of fiber reinforced plastic with higher specific strength. Its specific rigidity is comparable to that of aluminum alloy and steel. Far higher than fiber-reinforced plastics; its corrosion resistance is much better than that of low-carbon steel, and has exceeded that of die-cast aluminum alloy A380; its vibration damping and magnetic shielding properties are far superior to aluminum alloys; in view of the low dynamic viscosity of magnesium alloys, the same The filling rate under the fluid state (Reynolds index equal) is much greater than that of aluminum alloys. In addition, the melting point, specific heat capacity, and latent heat of phase transformation of magnesium alloys are all lower than those of aluminum alloys. Therefore, the melting energy is less, the solidification rate is faster, and the actual die casting cycle of magnesium alloys is comparable. Aluminum alloy is 50% shorter. In addition, the magnesium alloy has a small affinity with iron and has a low capacity for solid-solubilizing iron, so that it is not easy to adhere to the surface of the mold, and the life of the used mold is 2 to 3 times higher than that of the aluminum alloy. Magnesium alloys have greater advantages over aluminum alloys in terms of their chemical and physical properties, and because magnesium is extremely rich in resources, magnesium-based aluminum is bound to become a major trend in the future. Therefore, the magnesium alloy market has a broad development prospect. As the birthplace of China’s aluminum industry, especially the civil aluminum industry, Nanhai currently gathers more than 200 aluminum production enterprises and is located in the towns of Dali, Guanyao, Shishan, Luocun and Danzao. Dali, which was awarded "China's aluminum material by Qianqian town" by the China Construction Metal Structure Association, was concentrated. Dali is a intensive enterprise of aluminum profiles in China. The area covers only 120,000 of the country's land and more than 110 aluminum profile companies are gathered. The annual production capacity is 600,000 tons, accounting for 50% of the province's total. 35%, 2003 output value of more than 7 billion yuan, 17 companies have output value of more than 100 million yuan. Metal Name Magnesium Alloy Aluminum Alloy Brass Cast Iron Cutting resistance 1.0 1.8 2.3 3.5 Corrugated Testing Equipment,Cardboard Puncture Tester,Crush Tester,Box Compression Strength Tester Dongguan Hengke Automation Equipment Co., Ltd. , https://www.hengkeinstrument.com
Magnesium alloy characteristics