三、稀土铝合金的生产和应用 1.稀土铝合金的生产稀土金属一般很少采用单一元素加入铝液。因为单一稀土元素的熔点太高,比重大,成本高。目前在铝加工厂多用中间合金的方法加入,在冶炼厂多采用铝热还原法和对掺法生产稀土铝合金。几种稀土铝合金生 Third, the production and application of rare earth aluminum alloy 1. The production of rare earth aluminum alloy rare earth metal is rarely used by adding a single element of aluminum. Because a single rare earth melting point is too high, the proportion of large, high cost. At present, the use of aluminum alloy processing plant more ways to join in the smelter to use aluminum thermal reduction method and the production of rare earth doped aluminum alloy. Several rare earth aluminum alloy students