热喷涂技术在产品再制造领域的应用及发展趋势

再制造产业已列为国家发展战略性新兴产业,热喷涂技术具有喷涂材料广泛、基体形状与尺寸不受限制、涂层厚度容易控制、工艺操作简单、成本低效率高、能赋予零件表面特殊性能等特点,是实现损伤零部件表面尺寸恢复和性能提升的关键技术手段,已成功应用于国防工业、印刷、航空航天、石油化工、矿山机械、电力等领域装备零部件的再制造。文中综述了等离子喷涂、高速火焰喷涂、高速电弧喷涂及其他热喷涂技术的特点及其在再制造领域的典型应用,提出热喷涂技术应用于再制造领域未来的发展趋势主要表现在:加强热喷涂技术在再制造领域的适应性研究、深入复合技术的研究和应用、推动热喷涂技术在高效规模化生产应用中的研究以及加强热喷涂再制造技术标准、工艺规范等方面的研究。

Applications and Future Development of Thermal Spraying Technologies for Remanufacturing Engineering

Remanufacturing engineering has become one of the key contents in the national developing strategic emerging industry. As a key technology for remanufacturing engineering, thermal spraying has the characteristics such as wide kinds of feed materials, little restriction on substrate geometry and dimensions, controllable coating thickness, simple processing management, low investment, high deposition efficiency and special surface properties. Thermal spraying can also be regarded as a key technology due to its capability of remanufacturing damaged parts and property upgrade. As a result, it performs a booming development applied in many equipment components remanufacturing in the industries such as national defence, printing, aerospace, petrochemical, mining machinery and electric power. In this study, the present status of research and typical applications of thermal spraying technologies used in remanufacturing field was reviewed, including supersonic atmospheric plasma spraying, high velocity flame spraying and high velocity arc spraying methods. The characteristics of the thermal spray techniques were analyzed, and some remarks on the future development of the technologies used in remanufacturing field were put forward, including enhancing the adaptability investigations of thermal spraying available for remanufacturing, the multitechnology researches and applications, the highefficiency and widescale industry study of thermal spraying and the related thermal spray remanufacturing standards or process criterions.