1.1 本规程涵盖了电镀用钼及其合金的制备程序。该程序利用电镀常见的技术、设备和化学品。不包括氢热处理和熔盐酸洗等专门程序。这些和其他程序可在本规程末尾列出的参考文献中找到。 1.2 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.3 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 2.1 钼用于需要零件强度和刚度的工程应用中，尤其是在高温下。其在高温下具有良好的强度、低蒸汽压、良好的抗冲击和蠕变性能，因此对涡轮叶片、机械密封件、火箭发动机零件、加热元件和电子设备等承重项目具有吸引力。然而，钼很容易被氧化，氧化物不起保护作用。800以上氧化物的挥发性 对于未受保护的零件，°C可能导致灾难性氧化和尺寸损失。电镀涂层应用于钼，以防止氧化，防止咬合和磨损，并通过钎焊、铜焊和扩散连接协助连接。

1.1 This practice covers a procedure for preparing molybdenum and its alloys for electroplating. The procedure utilizes techniques, equipment, and chemicals that are common to electroplating. Specialized procedures such as hydrogen heat treatment and fused salt pickling are not included. These and other procedures can be found in the references listed at the end of this practice. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 2.1 Molybdenum is used in engineering applications where strength and rigidity of component parts are needed, especially at high temperatures. Its good strength at high temperatures, low vapor pressure, and good impact and creep resistance make it attractive for load-bearing items such as turbine blades, mechanical seals, rocket motor parts, heating elements, and electronic devices. Molybdenum, however, is easily oxidized, and the oxides are not protective. The volatility of the oxides above 800 °C can lead, in the case of unprotected parts, to catastrophic oxidation and to losses in dimensions. Electroplated coatings are applied to molybdenum to prevent oxidation, to prevent seizing and galling, and to assist joining by soldering, brazing, and diffusion bonding.