一、前言低压等离子喷涂(LPPS)技术所获得的涂层质量是其它喷涂方法所无法获得的,因此在科学技术发达的国家已引起对低压等离子喷涂技术的极大关注。但是,由于该项技术所采用的设备制造精度高,投资很昂贵,使该项技术的推广应用受到了一定的影响。为了使低压等离子喷涂技术在我国得到推广应用,1984年由中国科学院金属研究所 I. INTRODUCTION The quality of coatings obtained by low pressure plasma spray (LPPS) technology is beyond the reach of other spray methods and has drawn great interest in low pressure plasma spray technology in countries with advanced science and technology. However, due to the high precision of manufacturing equipment and high investment in the equipment used in the technology, the popularization and application of the technology has been affected to some extent. In order to make low-pressure plasma spraying technology to be promoted in China, in 1984 by the Chinese Academy of Sciences Institute of Metal