锌—5铝—稀土合金是国际铅锌组织80年代开发的镀层产品,称为 GaLfan 合金。用它镀层的产品比普通镀锌产品的使用寿命大大提高。近年来,世界各主要工业国家都广泛地将此产品应用于镀层上。1986年我们对此开始进行研制工作。GaLfan 合金的关键成份是微量稀土元素镧和铈,它们的总含量在 Zinc-5 aluminum - rare earth alloy is the international lead-zinc organization 80 developed coating products, known as GaLfan alloy. Products coated with it than ordinary galvanized products greatly improve the service life. In recent years, the world’s major industrial countries have extensively applied this product on the coating. In 1986, we began to carry out research and development. The key components of GaLfan alloy are trace rare earth elements lanthanum and cerium, their total content is