高速电弧喷涂枪的设计  

DESIGN OF HIGH VELOCITY ARC SPRAYING GUN

作　　者：梁秀兵[1] 徐滨士[1] 马世宁[1] 

机构地区：[1]装甲兵工程学院

出　　处：《兵工学报》2004年第2期246-248,共3页Acta Armamentarii

基　　金："九五"国家重点科技攻关项目 ( 96 A2 2 0 4 0 5 )

摘　　要：高速电弧喷涂技术是热喷涂技术中的高新技术 ,高速电弧喷涂枪是实现高速电弧喷涂的关键装置。采用高速气流技术方案研制了高速电弧喷涂枪 ,在喷枪的设计中采用了超音速喷管 ,使喷枪出口 80mm范围内雾化气流的速度达到 6 0 0m /s以上 ,这有利于增强喷涂粒子的雾化效果 ,提高粒子速度。高速电弧喷涂Al粒子的平均飞行速度达到了 340m/s ,是传统电弧喷涂的 1 4倍 ,从而使喷涂层的质量和性能明显改善 。High velocity arc spraying is one of the high tech processes in thermal spray devices where the high velocity arc spraying gun is the key equipment. High velocity airflow is adopted and supersonic nozzle is used in the design of HVAS gun. The axial airflow speed of the gun is kept at approximately 600 m/s at a distance of some 80 mm from the gun outlet, which makes the velocity of Al particles sprayed arrive at 340 m/s. The sprayed particles have a velocity 1.4 times that of the traditional arc spraying, which makes the quality and behaviors of the coating improved. The successful development of HVAS gun sets a foundation for its industrial applications.

关 键 词：电弧喷涂 热喷涂 喷枪 超音速喷管 喷涂粒子速度 

分 类 号：TG174.442[金属学及工艺—金属表面处理]