Aluminum alloy material and its processing, because of has adopted a series of excellent properties, such as low density, specific strength, high stiffness, good flexibility, good resistance to impact, corrosion resistance, wear resistance, high electrical conductivity, high thermal conductivity, easy coloring, good formability and high recycling renewable, etc., therefore, in the field of engineering, aluminum has long been considered "metal" or "hope" metal, aluminum industry has long been considered a "sunrise industry".
In the early days, aluminum was excluded from the automobile industry and other related manufacturing, when gasoline was plentiful and cheap because it was more expensive. However, in 1973, due to the impact of the oil crisis, this view was completely changed, in order to save energy, reduce automobile exhaust air pollution, ozone layer protection deterioration, aluminum alloy materials quickly entered the automotive field, at present, the degree of aluminum alloy auto parts increased.
Aluminum alloy material has been widely used in automobile industry. In terms of automobile manufacturing, operation and recycling, it has brought huge economic benefits, and with the increase of automobile production and social ownership, this effect will be more obvious. The influence of the increase of automobile aluminum alloy material is mainly reflected in the following aspects:
Significant mitigation effect
In order to reduce the weight of the car, the first is to improve the structural design of the car, followed by the selection of light materials (such as aluminum alloy, magnesium alloy, plastic, etc.) manufacturing. So far, the former has not had much of a wobble, so the automotive industry has generally focused on developing new high-strength steel or alloys such as aluminum and magnesium.
The price and safety of magnesium alloys also limit their wide application in light materials due to environmental pollution during the recycling of polymer plastics. And aluminum alloy material has rich resources, with the development of power industry and improvement of aluminum electrolysis process, will make aluminum production increased rapidly, cost reduction, aluminum alloy material of light (steel, aluminum, magnesium, the density of plastics are: 7.8, 2.7, 1.74, 1.1 to 1.2 g/cm3) and good formability, weldability and corrosion resistance, the color of the surface, and the recovery rate of aluminium alloy material is about 80%, 60% of the aluminum alloy material, recycling of waste recovery is expected to further improve 90% more than in 2015.
In theory, an aluminum car could reduce the weight of a steel car by 30 percent. 40%, where the aluminum engine can reduce the weight by 30%, and the aluminum radiator is 20% lighter than the copper? 40%, car body weight than steel products more than 40% light, car aluminum wheel can reduce the weight of 30%. Therefore, aluminum alloy is one of the most ideal lightweight materials for automobiles.
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