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金属钕作为添加剂可提高镁合金的高温机械性能,抗腐性能和抗蠕变性能,并具有良好的铸造性能和冷加工性能。近年来,钕铁硼永磁材料的出现为钕及钕合金的应用开创了具有广阔前途的新领域,各种纯度的金属钕的用量日益增加。 钕及钕合金的生产多采用钙热还原法、氧化物熔盐电解法和低温氯化物熔盐电解法等。镁阴极电解-真空蒸馏法制备金属钕是一种新的工艺方法,首先用电解法制出镁钕合金,再用蒸馏法除去镁,得到海绵金属钕。这种方法具有金属回收率和电流效率高、产品
Neodymium as an additive can improve the high temperature mechanical properties of magnesium alloys, corrosion resistance and creep resistance, and has good casting performance and cold workability. In recent years, the emergence of NdFeB permanent magnet materials has opened up a new field with broad prospects for the application of neodymium and neodymium alloys, and the amount of neodymium metal used in various purities has been increasing. Neodymium and neodymium production more use of calcium thermal reduction method, oxide molten salt electrolysis and low temperature chloride molten salt electrolysis. Magnesium cathodic electrolysis - vacuum distillation of metal neodymium is a new process, the first method of electrolysis magnesium neodymium alloy, and then remove the magnesium distillation to obtain sponge neodymium. This method has a high metal recovery and current efficiency product