Method and equipment for preparing high-performance beryllium powder by atomization

Abstract

This invention relates to the field of powder metallurgy, and particularly to a method and production equipment for preparing high-performance beryllium metal powder by atomization powdering, comprising the following steps: S1, feeding: placing the raw material into a melting crucible in the melting zone; S2, melting: heating and melting the raw material into a melt under vacuum conditions; S3, atomization and spheroidization: the melt flows downward through a guide pipe into the atomization zone, where a high-pressure inert gas is ejected from an annular nozzle to break the melt into fine droplets; the droplets fly within the atomization chamber, are cooled at the top, and then enter the lower part of the atomization chamber, falling along a spiral trajectory along a spiral plate set at the bottom of the atomization chamber, where the droplets shrink, spheroidize, and solidify; S4, classification and collection: the solidified powder enters the classification zone for particle size classification and collection, with coarse powder flowing back to the melting zone to mix and remelt with the raw material, and fine powder collected as the product. Through the coordinated operation of each step, high sphericity, narrow particle size distribution, low oxygen content, and batch stability of the beryllium metal powder are achieved.

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