Opportunities brought by the hottest new energy ve

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Opportunities brought by new energy vehicles to the aluminum industry

with the substantial improvement of new energy vehicles in the fields of household vehicles, official vehicles, buses, taxis, logistics vehicles, etc., according to the materials, the annual sales volume of new energy vehicles in China in 2020 will reach more than 5% of the total demand of the automotive market, and a new energy vehicle industry system with market orientation, enterprises as the main body, and strict separation of production, study, research and application will be initially established. By 2025, it will increase to about 20%, forming an independent, controllable and sound industrial chain. Under the national total carbon emission goal and the demand of the primary energy alternative catalogue, the proportion of annual sales of new energy vehicles in 2030 will continue to improve significantly, with a range of more than 10 million vehicles

it is not too late for China to implement the strategy of new energy vehicles. As early as 2001, the development of new energy vehicles was included in the "863" serious scientific and technological topic during the Tenth Five Year Plan period. In recent years, in order to promote the consumption of new energy vehicles, governments at all levels have also implemented policies such as car purchase subsidies and licensing priority. The demand and development of new energy vehicles will drive the development of various automotive batteries, body lightweight and auto parts industries in the new energy era. At the same time, it will also bring infinite market opportunities to China's aluminum industry

different from traditional vehicles, new energy vehicles use batteries as power to drive vehicles. It is limited by the weight of power batteries, the mileage of power batteries and the high voltage of automobile energy conservation and emission reduction policies. In vehicle design and data application, the lightweight of its body has become the first issue for vehicle enterprises to consider. Therefore, battery driven new energy vehicles are more urgent to reduce body weight than traditional vehicles. This has also opened up a broader market space for lightweight materials such as aluminum

in automobile lightweight materials, the comprehensive cost performance of aluminum alloy profiles is higher than that of steel, magnesium, plastics and composite materials. It has comparative advantages in application technology, operation safety and recycling applications. As long as the density of aluminum material is 1/3 of that of steel, its weight reduction and energy-saving effect are obvious, and if it can better improve the ride temperature on the premise of ensuring safety, the sinking oil level should be increased. At the same time, aluminum materials are easier to recycle. The comprehensive cost performance advantage of aluminum determines it to be the choice of automotive lightweight applications

the application parts of aluminum in new energy vehicle parts mainly include body, wheel hub, chassis, crash beam, floor, power battery, seat, etc. According to the classification of processing methods, automotive aluminum is mainly divided into three forms: die-casting, extrusion and calendering, of which the consumption of die-casting parts accounts for about 80%, and the consumption of extrusion parts and calendering parts account for about 10% respectively. Die castings are mainly used in the engine, wheels and other parts, extrusions are mainly used in the seat frame, luggage rack, door beam and so on, and calendered parts are mainly used in the consumption of aluminum plates for car bodies

among them, the body includes the body frame made of high-performance aluminum profile and the skin and door made of high-precision aluminum plate, so the critical point of this change is the innovation of materials; Aluminum alloy hub (cast aluminum hub or forged aluminum hub); The chassis includes high-strength and large section aluminum structural parts and aluminum alloy forgings; Crash beam bumper made of profile; New energy bus floor; Lithium ion batteries include battery positive aluminum foil, battery aluminum shell and battery aluminum tray (different series of experimental machines, European and American battery trays are all made of aluminum alloy profiles, and domestic battery trays are made of both aluminum alloy and stainless steel); New energy bus seat system, etc

in the past, new energy vehicles mostly used steel materials to manufacture power battery trays for electric vehicles. Now many enterprises mainly use aluminum alloy profiles. The density of aluminum alloy profile is 2.7g/cm?, Aluminum alloy material has obvious advantages in terms of contraction or welding. The density of magnesium alloy is 1.8g/cm?, Carbon fiber is 1.5g/cm?, These materials are used to consume battery trays, which will greatly improve the lightweight of new energy vehicles

it is understood that the battery aluminum tray mainly adopts 6-series aluminum profiles. Good plasticity and corrosion resistance, especially no stress corrosion cracking tendency and good welding performance make the 6 series aluminum profile extremely suitable for the application of this project. In order to ensure the production and quality, advanced welding technologies such as friction stir welding are required to ensure the integration of products

new energy vehicles use more aluminum than ordinary vehicles. The rapid development of China's new energy vehicles will certainly promote the development potential of aluminum in the new energy vehicle market segment. Aluminum processing enterprises seize this opportunity to develop high-performance and applicable aluminum materials or deep processed aluminum parts from sample development, mold processing, casting heat treatment to precision machining, Undoubtedly, it has opened up a new sales orientation for enterprises in the diversified application needs of new energy vehicles

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