The invention discloses a method for preparing
cobalt-substituted prealloying
powder from regenerated
metal. The method comprises the process steps: compounding raw materials, electrolyzing at a
room temperature, crushing, screening, detecting and packaging; using the regenerated
metal, such as recycled
synthetic diamond waste
powder accelerant, and the like, as a main
raw material; supplementing a suitable amount of
metal cobalt and metal iron to an
anode basket together; and rinsing, purifying in vacuum after the room-temperature
electrolysis step in the process steps and reducing
hydrogen at 400 DEG C to 650 DEG C. More than 10 percent of particles in a final product have a
sponge appearance, and an
electrolyte used in the room-temperature
electrolysis step in the process steps can be recycled. The invention has the advantages: 1, the production cost is lower than that of a chemical
coprecipitation method by more than 50 percent, and the product quality is stable; 2, the
powder appearances comprises the
sponge appearance so as to have a large specific surface area; 3, the powder can be applied to
laser bonding; 4, the strength is high, and the anti-abrasion performance is good; and 5, the
sintering temperature is low, and the range is wide. The method is suitable for being adopted by industrial and mining plants producing the
cobalt-substituted prealloying powder.