铜和锡的合金称为青铜,这是人所共知的。但近来在熔铸界常用无锡青铜来代替部份锡青铜,铝青铜就是其中的一种。因为锡的价格甚贵,并且供应困难,因此就有无锡青铜的出现。无锡青铜不仅节约了部份贵重原料,降低生产成本,并且它们的机械性能都远超过锡青铜,因此这种铜就很快地被广泛应用在机械工业上。 It is well known that copper and tin alloys are called bronze. Recently, however, Wuxi bronze is often used instead of part of tin bronze in the casting industry, and aluminum bronze is one of them. Because the price of tin is very expensive, and supply difficulties, so there is the emergence of Wuxi bronze. Wuxi bronze not only saves some valuable raw materials, reduces production costs, and their mechanical properties are far more than tin bronze, so the copper is quickly widely used in the machinery industry.