Numerical Analysis of Powder Properties in Low Power Plasma Torch

AN Lian-tong¹，GAO Yang¹，Yan Zhi-jun¹，HEI Zhu-kun¹

(1.Marine Engineering Collage, Dalian Maritime University, Dalian Liaoning 116026, China)

摘要:A mathematical model was presented to describe the particle trajectory, velocity and temperature properties in the low power plasma spraying torch (3.6 kW)in which powder particles were directly injected into the region between the cathode and anode. The results show that the characteristics of the particles by low power plasma spraying are similar to that by traditional APS( Atmosphere plasma spraying) in 40 kW. The velocities of the particles increase with the increase of inlet gas flow rate, current and percentage of nitrogen and hydrogen, while the temperature of the powder increase with the decrease of the gas flow rate and with the increase of current and percentage of nitrogen and hydrogen.

关键词:plasma spraying; numerical simulation; powder property;

【全文内容正在添加中】