The Application Prospect of Magnesium Alloys in Automobile Industry

Magnesium alloy products are excellent lightweight automotive solutions, with a low density, high strength, good damping, good castability and other excellent performance, can reduce vehicle weight, fuel consumption and reduce emissions, improve vehicle performance and promote magnesium industry healthy and rapid development.

Magnesium density is 1.74g / cm ³, and is the lightest commercial metal structure materials, known as the 21 green engineering materials, magnesium density is the smallest of the existing structural metal with high strength and stiffness, which its strength far higher than the aluminum alloy, is very conducive to the overall design of components; magnesium alloy has good vibration damping, the impact load by the absorption capacity higher 50% than aluminum. Therefore it is the ideal material of wheels and other parts, high damping capacity characteristics can also effectively reduce the vibration and noise; magnesium alloy also has excellent cutting characteristics, easy processing, cutting speed and low processing costs, easy to achieve stable dimensional accuracy and low surface roughness.

Automobile industry generally believe that each weight reduction of 100kg, per hundred kilometers of fuel consumption will be reduced 0.5L; weight reduction of 10% each car will improve fuel economy 6%, light truck fuel economy will increase by 8%, magnesium alloy instead of iron and steel materials can effectively reduce the vehicle weight. For example the stiffness of the design criteria for the material, such as bending stiffness in the conditions of magnesium instead of steel can be reduced by 74%. Weight loss can also be effective in reducing vehicle noise and reduce exhaust emissions at the same time, and improve vehicle design, providing car performance and comfort. Magnesium alloy will have the ability to achieve the weight of the vehicle to use 1kg of magnesium per car can reduce the exhaust emissions of 30kg (and the ratio of aluminum); magnesium or green environmentally friendly materials, recyclable, so magnesium products are excellent lightweight vehicle solution Program.

Currently 70% of magnesium alloy products are applied to the automotive industry, so the expansion of magnesium alloy application in the automotive industry is the fundamental driving force to promote the development of magnesium. The world economic development law shows that the automobile industry role to promote the national economy, far more than the general consumer products. Abroad, the automobile industry is called "bell sheep", which means the leader of the bell, vividly summarize its entire function for entire national economy and the interests of industry-oriented. Therefore, the application of magnesium alloy has important social significance in the automotive lightweight.

Henan Zhengzhou Mining Machinery Co., Ltd began to manufacture equipments for Mg smelting industry from 1988, and focused on the technology upgrading and utilization. During 2003-2005, the company invented Vertical pre-heater for the calcination of dolomite. This kind of new pre-heater saves fuel by 40% and increases the output by 30%. The exhaust gas is recycled and dust emission can be controlled under 50mg/m3. This kind of new pre-heater takes up more than 85% in the market share, serves more than 200 magnesium plant, and become a lot of magnesium experts and the industry's preferred products.