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针对某热动力机械之动密封摩擦偶件用材的需要，以ＷＣ－Ｎｉ－ＰｂＯ材料为基料，通过陶瓷相ＷＣ的微细化和金属Ｍｏ的加入，利用中频感应加热的热压法研制出一种在高温下具有机械强度高、摩擦系数低和耐磨性能好等优点的ＷＣ－Ｎｉ－Ｍｏ－ＰｂＯ高温自润滑金属陶瓷材料，并且通过Ｘ射线衍射仪、电子探针微区分析仪和多功能电子能谱仪等近代分析手段揭示了这种材料的高温自润滑机理，研究结果表明，摩擦表面ＰｂＷＯ＿４润滑膜的形成是ＷＣ－Ｎｉ－Ｍｏ－ＰｂＯ金属陶瓷材料在高温下具有良好自润滑性能的主要原因。利用这种材料制作成某热动力机械的动密封摩擦偶件已在压力１１．３ＭＰａ、速度３．５ｍ／ｓ、温度１０００－１１００℃的实际工况下成功地运行了４５０秒，并且顺利地连续使用了３次，其各项技术指标均能很好地满足实用要求。
In order to meet the need of dynamic sealing frictional coupling material of a certain thermodynamic machine, the WC-Ni-PbO material was used as a base material to make the WC WC-Ni-Mo-PbO high temperature self-lubricating cermet with the advantages of high mechanical strength, low coefficient of friction and good wear resistance at high temperature, and characterized by X-ray diffraction, electron probe microanalysis Modern electron spectroscopy and other modern analytical tools reveal the high temperature self-lubricating mechanism of this material. The results show that the formation of the friction surface of the PbWO_4 lubricating film is WC-Ni-Mo-PbO cermets with good self-lubricating properties under high temperature The main reason. The use of this material to make a thermal mechanical friction sealing device has been the pressure 11.3MPa, speed 3.5m / s, temperature 1000-1100 ℃ under the conditions of the successful operation of 450 seconds, and smoothly Continuous use of 3 times, its various technical indicators can well meet the practical requirements.