2353 高速フレーム(HVOF)溶射ガン内の流れの準一次元流動解析 : ノズル形状が粒子挙動に与える影響(S46-5 圧縮性流れの基礎と応用(混相流),S46 圧縮性流れの基礎と応用)  [in Japanese] 2353 Quasi-One-Dimensional Analysis of High Velocity Oxy-Fuel Thermal Spray Gun : Effect of Nozzle Shape on Particle Behavior  [in Japanese]

The gas velocity in the High-Velocity Oxy-Fuel (HVOF) process is highest in many types of thermal spraying process. Previous works show that the higher velocity of the coating particle seems to give high-quality coating. This paper analyzes the behavior of coating particle as well as the gas flow of inside the HVOF thermal spraying gun by using quasi-one-dimensional analysis. The effect of the nozzle shape on the particle velocity and temperature is examined.