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为了满足日益严格的汽车燃油经济性法规的要求,日本汽车公司广泛使用轻质材料以减轻汽车整体质量,但由于铝的价格较贵(约是钢的2倍)以及随着更为严厉的安全标准的出现,要求在汽车上使用高强度材料等原因,专家们分析在未来10年内铝材在汽车上的使用不会取代钢而占主导地位。目前,钢材约占汽车总质量的50％左右,而铝材只占8％。预计到2010年,日本车用铝材需求量150万吨,约占汽车总质量的10％,其中,车用铝板需求量约2万—2.5万吨,主要是汽车车身结构、中高档私人轿
In order to meet increasingly stringent automotive fuel economy regulations, Japanese car companies use lightweight materials extensively to reduce the overall quality of the car, but due to the higher price of aluminum (about twice that of steel) and with more stringent safety The emergence of standards requires the use of high-strength materials in automobiles, etc. The experts analyzed that the use of aluminum in automobiles in the next 10 years will not replace steel and dominate. At present, steel accounts for about 50% of the total mass of automobiles, while aluminum accounts for only 8%. It is estimated that by 2010, the demand for automotive aluminum in Japan will be 1.5 million tons, accounting for about 10% of the total mass of automobiles. Among them, the demand for automotive aluminum panels is about 20,000-25,000 tons, which is mainly the auto body structure, medium-to-high-grade private sedan