Ezperimental Study on Feeding Rate of Micro-Feeding Powder by Ultrasonic Vibrating Capillary
The rate of micro-feeding of fine powder was investigated experimentally by using a vibrating capillary. It was found that the powder in the capillary can form three structures: arching, plugging and blocking under vibration conditions and that the mode of powder flow from the capillary can be divided into three types: continuous steady flow, continuous unsteady flow and intermittent flow. The micro-feeding process can be effectively controlled only when the powder structure is arching and the mode is continuous steady flow. Experiments carried out under steady feeding conditions show that the following processing parameters: location of the oscillation point, diameter of capillary, voltage amplitude and waveform of the driving signal affect the feeding rate and that the diameter of the capillary is a crucial factor.
Powder Feeding rate Micro-feeding powder Ultrasonic vibrating Capillary
Huang Hua Qi Lehua Zeng Xianghui Chao Yanpu Luo Jun
School of Mechatronic Engineering, Northwestern Polytechnical University, Xian 710072, China
国际会议
沈阳
英文
43-47
2009-08-27（万方平台首次上网日期，不代表论文的发表时间）