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CNPC POWDER tungsten powder process method used hydrogen reduction of tungsten trioxide or secondary ammonium tungstate.
The process generally divided into two stages,the first stage in temperatures of 500-700℃,tungsten trioxide reduction of
The next step in temperatures of 700-900℃,tungsten oxide reduction of tungsten powder.Reduction reaction in tubular furnace or ratary furnace.
Tungsten powder's quality depends on the reduction process,especially of purity,particle size,particle size compositon,etc.
The process generally divided into two stages,the first stage in temperatures of 500-700℃,tungsten trioxide reduction of
The next step in temperatures of 700-900℃,tungsten oxide reduction of tungsten powder.Reduction reaction in tubular furnace or ratary furnace.
Tungsten powder's quality depends on the reduction process,especially of purity,particle size,particle size compositon,etc.
Tungsten Powder process method is reduced.It's grey irregular
shape powder with high density.Main used in hard alloy,high
temperature material.
Apperent Density Particle Shape Oxgyen Content Color
W 4.3-6.5g/cm3 irregular 0.3% darker
| CAS no.: | 7440-33-7 |
|---|---|
| HS code: | 8101999000 |
| Molecular Formula: | W |
| Color: | Grey |
| Shape: | Irregular shape |
| Purity: | 99.95% |
| Product method: | Reduced |
| Molecular Weight: | 183.85 |
| Freezing/Melting Point: | 3410℃ |
| Boiling Point: | 5927 ℃ |
| Specific Gravity/Density: | 19.3g/cm3 |
| Applicable Solubility in water: |
No |
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