近年来低熔点合金制模技术发展很快,西方国家对此非常重视。我国从六十年代开始研究这项技术。我国锌资源丰富,价格便宜,适于发展锌基合金,但由于锌基合金强度、硬度低,影响其广泛应用。本实验试图通过添加稀土元素改善其性能。实验结果表明,锌基合金中添加微量稀土元素,其性能显著提高。 锌合金的机械性能与其成分、组织有密切关系,且对有害杂质的反应极为敏感。为确 In recent years, low melting point alloy die-casting technology developed rapidly, the Western countries attach great importance to this. China began to study this technology from the sixties. Zinc is rich in resources and cheap in price. It is suitable for the development of zinc-based alloys. However, due to the strength and hardness of zinc-based alloys, it has a wide range of applications. This experiment attempts to improve its properties by adding rare earth elements. The experimental results show that the addition of a trace amount of rare earth elements in the zinc-based alloy significantly improves its performance. The mechanical properties of zinc alloy is closely related to its composition and structure, and it is extremely sensitive to the reaction of harmful impurities. Indeed