汽车轻量化的发展趋势

Development Tendency of Lightweight Automobile

现代汽车用材料除了要满足强度和使用寿命要求外，其外观、安全性、价格、环保及节能等方面也应符合要求。铸铝合金产业的发展前景广阔，为此，分析了铸造铝合金的性能特点和化学成分，介绍了铸造铝合金的分类，阐述了铸造铝合金的工艺性能，提出了汽车用铸造铝合金市场的发展趋势。

The materials used in modem automobile not only should have sufficient strengths and service life but also should exhibit good appearance and safety, less expensive, environmentally-friendly and energy serving. Aluminum casting alloys possess vast development prospect. For this fact, characteristics and chemical composition of aluminum casting alloys were analyzed, classification of aluminum casting alloys were introduced, processing properties aluminum casting alloys were described, and development tendency of aluminum castinz alloys market were out forward.