研制了一种在以激光束为中心轴的圆周方向均匀对称分布四个具有同轴汇聚气的双层送粉管的送粉喷嘴。
Developed a feeding nozzle which have four double-feeding pipes with co-axial shaping gas distributes on circle orientation of laser beam with uniformity and symmetry.
设计的微弧等离子喷枪采用了独特的气路结构、喷嘴结构和中心轴向送粉方式；
The micro-plasma spraying gun adopted unique passage and spraying nozzle structure and center axial to be sent the powder method.
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