氧是使钼脆化的最有害杂质之一,因此,应采用真空精炼的方法,即电子束熔炼和真空电弧熔炼,配合使用各种脱氧剂的方法,来努力制取间隙杂质(特别是氧)含量最低的钼。最广泛使用的脱氧剂为碳和硼,和牌号的钼可作其例。由 Oxygen is one of the most harmful impurities that cause embrittlement of molybdenum. Therefore, vacuum refining methods such as electron beam melting and vacuum arc melting, and various deoxidizers should be used in an effort to produce interstitial impurities (particularly oxygen ) The lowest content of molybdenum. The most widely used deoxidizers are carbon and boron, and grades of molybdenum are examples. by