据海外媒体报道,由于镁合金具有轻量化、高强度、耐压性、散热佳、易于铸造及射出成形等特性,因此正在逐渐取代塑胶材料,应用越来越广泛。美国笔记本电脑厂商自2 0 0 3年起已开始大量采用镁合金机壳,预估今年笔记本电脑总出货量中,将有5 0 %以上至少采用一片镁合金机壳。由于镁 According to overseas media reports, due to the characteristics of lightweight, high strength, pressure resistance, heat dissipation, easy casting and injection molding, magnesium alloys are gradually replacing plastic materials and are used more and more widely. US notebook computer manufacturers have begun to use a large number of magnesium alloy casings since 2003. It is estimated that more than 50% of the total notebook computer shipments this year will use at least one magnesium alloy casing. Because of magnesium