端口压力特性对超音雾化金属粉末粒度的影响

THE EFFECT OF THE PRESSURE CHARACTERISTICS AT THE POUR-TUBE ORIFICE ON THE SIZE OF METAL POWDER IN USGA

本文对超音雾化技术的基本原理作了简单的介绍,研究了输液管端口的压力特性与超音雾化金属粉末粒度间的关系,认为喷雾气体压力与抽吸压力的匹配关系决定了金属粉末的粒度,最后简要阐述了影响金属粉末粒度的主要因素。

At the beginning of the investigation,introduction to the technique of USGA (Ultrasonic Gas Atomization)is simply performed.This study deals with the relation between the pressure characteristics at the pour-tube orifice and the size of metal powder in USGA.The conclusion shows that the size of metal powder is determined by the correlation between the jet gas pressure and the aspiration pressure at the pour-tube orifice.At last,the main elements which affect the size of metal powder are briefly described.