Optimization of Process Parameters for Preparing Honodisperse Particles by Pulsated Orifice Injection Method
Optimization of Process Parameters for Preparing Honodisperse Particles by Pulsated Orifice Injection Method
复制标题
脉动孔板注射法制备单分散颗粒工艺参数优化
DOI：
10.2497/jjspm.43.1273
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发表时间：
1996
期刊：
影响因子：
--
通讯作者：
R. Watanabe
中科院分区：
文献类型：
--
作者：
M. Asano;N. Nagai;A. Kawasaki;R. Watanabe
采用脉动孔板注入法(POIM)制备了单一尺寸的铅锡合金球形粉末。该装置是通过压电致动器驱动的压力传递膜片的夹持作用，从小孔中喷射熔融金属的装置。由隔膜位移引起的每个脉冲压力产生一个液滴，其大小几乎等于孔口直径。讨论了以上升时间、保持时间和下降时间为表征的波形过程参数对颗粒形成和尺寸散射的影响。经俄歇电子能谱检测，所得颗粒为球形，表面光滑，表面覆盖着小于10A的SnO2薄层。
Monosized spherical powders of Pb-Sn alloy were prepared by pulsated orifice injection method (POIM). The apparatus was devised for injecting molten metal from a small orifice by a clipping action of a pressure transmitting diaphragm driven by a piezoelectric actuater. Each pulse pressure, induced by the displacement of the diaphragm, produced one liquid droplet having a size almost equal to the orifice diameter. The effect of the process parameters of waveform, characterized as rise time, hold time and fall time, on the particle formation and size scattering has been discussed. The shape of the obtained particles is spherical with smooth surface covered with very thin layer of SnO2 which is less than 10A as detected by auger electron spectrocopy.