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用惰性气体雾化法所得的粉粒具有均匀的圆球形状,粒度可达10～20μm,含氧量低.但是使用这种方法的喷气压力较高(4～8MPa),气体消耗量大,生产成本较高,使大规模工业生产受到限制.本方法使用低喷气压力(0.3～0.5MPa),通过改善喷嘴设计等方面的参数可达到最佳粒度分布为10～20μm的BiSn共晶合金粉末.喷嘴设计采用了改进的环孔结构,在低熔点合金雾化时,制作简单,在气流剪切金
The particles obtained by the inert gas atomization method have a uniform spherical shape with a particle size of up to 10 ~ 20μm and low oxygen content, but the jet pressure is high (4 ~ 8MPa) using this method, the gas consumption is large, The production cost is relatively high, which limits the large-scale industrial production.The method uses low jet pressure (0.3-0.5MPa) to obtain the optimal particle size distribution of BiSn eutectic alloy powder with the particle size distribution of 10-20μm by improving the nozzle design and other parameters . The nozzle design uses an improved ring hole structure, the low melting point alloy atomization, the production is simple, cut gold in the air flow