Preparation method of aluminum oxide dispersion-strengthened copper-based diffusion alloy powder

The invention provides a preparation method of aluminum oxide dispersion-strengthened copper-based diffusion alloy powder. The preparation method comprises the following steps of: (1) weighing luminumoxide dispersion-strengthened copper powder of which the particle size is smaller than 75 microns an...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: YAN ZHIQIAO, WANG SHUNCHENG, LIU ZHENPENG, FU NAIKE, CHEN FENG
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention provides a preparation method of aluminum oxide dispersion-strengthened copper-based diffusion alloy powder. The preparation method comprises the following steps of: (1) weighing luminumoxide dispersion-strengthened copper powder of which the particle size is smaller than 75 microns and metal powder of which the particle size is smaller than 45 microns according to a mass ratio, andmixing for 4 h to 8 h; (2) processing the mixed powder for 0.5 h to 4 h at the temperature of 600 DEG C to 900 DEG C in hydrogen atmosphere; (3) crushing the obtained material until the particle sizeof the material is smaller than or equal to 180 microns, and screening the material to form powder which is within four different particle size ranges including 180-150 microns, 15-75 microns, 75-45microns and smaller than 45 microns; and (4) processing the powder for 1 h to 3 h at the temperature of 450 DEG C to 650 DEG C in the hydrogen atmosphere, cooling to room temperature to obtain the aluminum oxide dispersion-stren