Under certain pressure of atomizing medium , the operating flow rate is affected by the difference of pressure between oil and pressed air as well as the structure of nozzles.

在一定的雾化介质压力下，运行油流量受油、气压差及喷嘴结构影响，在某种情况下会发生喷嘴运行油流量为零，雾化气倒流入油管的临界工况。

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The results show that the free-lead solder powder is best in the efficient atomization efficiency, size distribution and degree of sphericity with helium as the atomizing medium.

结果表明：在一定雾化条件下，氦气雾化粉末具有最高的有效雾化率、良好的粒度分布，且球形度最好；

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