等离子喷涂纳米氧化铝钛粉体粒子状态研究  

Study on the Particle State of Nano-Al_2O_3/TiO_2 Powder by Plasma Spray

作　　者：石绪忠[1] 武笑宇[1] 许康威 黄磊[1] 武创[1] SHI Xuzhong WU Xiaoyu XU Kangwei HUANG Lei WU Chuang(Luoyang Ship Material Research Institute, Luoyang 471023, China)

机构地区：[1]中国船舶重工集团公司第七二五研究所,河南洛阳471023

出　　处：《材料开发与应用》2016年第6期70-74,共5页Development and Application of Materials

基　　金：总装预研项目(51318060312)

摘　　要：用Spray watch 2i粒子状态在线监测仪器,研究了喷涂电压、主气压强及喷涂距离对粒子状态(温度和速度)的影响。在测量的范围内,提高喷涂电压,纳米陶瓷粒子温度和速度均有显著增大;提高主气压强,纳米陶瓷粒子温度下降,粒子速度增大;延长喷涂距离,纳米陶瓷粒子温度下降,粒子速度有所下降。By using the on-line particle state monitoring instrument,Spray watch 2i,the influence of the voltage,primary air pressure and spray distance on the temperature and velocity of the particles were studied. The resutts showed that the temperature and the velocity of the nano ceramic particles were significantly increased with the rise of the spraying voltage. Raising the pressure of the main gas,the temperature of the particles decreased,while the particle velocity increased. When the spraying distance was prolonged,the temperature and velocity of particles were simultaneously decreased.

关 键 词：等离子喷涂 喷涂监测 纳米陶瓷粉体 粒子速度 粒子温度 

分 类 号：TG664[金属学及工艺—金属切削加工及机床]