The powder is formed by blowing high-pressure water against high-temperature molten metal, so that the metal scatters and hardens into particles as it rapidly cools while falling.
Though the particles are already powderized at this point, the particle size profile for the product is adjusted by sieving.
| Product Categories | Metal Powders > Water Atomized Powders |
|---|---|
| Main Applications | Energy > Power generation equipment > Powder metallurgy (oil-impregnated bearings and machinery parts) Automobiles > Powder metallurgy (oil-impregnated bearings and machinery parts) Automobiles > Friction materials |
| Main ingredients | Cu (copper) Ni (nickel) Sn (tin) Zn (zinc) |
| Manufacturing method | Water atomization |
| Shape | Irregular shape |
| Features |
Metal powders with various alloy compositions can be manufactured by melting metal powders together during a melting process. Due to its fast cooling rate, the particles solidify before surface tension acts, so that irregularly shaped particles are formed. Furthermore, by changing the mesh size during the sieving process, the powder is offered in a variety of particle sizes. Due to the good compactibility provided by the irregularly shaped particles, the powder is used widely as an ingredient in powder metallurgy, such as for oil-impregnated bearings and sintered machinery parts. |
| Grade | Composition (mass%) |
Apparent density (g/cm3) |
Flow Rate (s/50g) |
Particle Size Distribution (mass %) | ||
|---|---|---|---|---|---|---|
| +150 μm | +45 μm | -45 μm | ||||
| Cu-AtW-100 | Cu100 | 2.2-3.6 | - | ≦5 | 30-70 | 30-70 |
| Cu-AtW-250 | Cu100 | 2.6-3.8 | - | - | - | ≧80 |
| Bro-AtW-100 | Cu90 Sn10 | 3.0-5.0 | - | ≦3 | 30-70 | 30-70 |
| NS-At(2)-100 | Cu64 Ni18 Zn18 | 3.0-3.8 | - | ≦3 | 30-70 | 30-70 |
| Cu-Co-At-100 | Cu97 Co3 | 3.3-4.0 | ≦30 | ≦5 | 30-60 | 40-70 |
| Sn-AtW-250 | Sn100 | 1.9-2.6 | - | 63μm ≦5 | ≦20 | ≧80 |
| Bra-At-100 | Cu70 Zn30 | 2.9-3.6 | ≦35 | ≦5 | 40-70 | 30-60 |