High Strength Tungsten Alloy Products Crucible For Quartz Glass Melting Furnace
Tungsten Crucible
tungsten crucible , wolfram crucible can be processed in sintered , forged and lathed . Surface: grounded, ungrounded; Advantages of tungsten crucible: low thermal expansion; high density;erosion resistance;high strength and low resistivity; it commonly used for sapphire single crystal growth furnace;
- Description
Tungsten Crucible
Mainly divided into sintering molding (applied to powder metallurgy technology), stamping molding, spinning type. It is formed by turning the tungsten rod (the general size is relatively small), and the welding is various. The pure tungsten plate, the tungsten piece and the pure tungsten rod are processed by corresponding processes. Tungsten rhenium can be used in vacuum inert gases below 2600 degrees. Tungsten has a high melting point, high temperature strength, anti-wear and corrosion resistance, high thermal conductivity, small thermal expansion coefficient and good hardenability. Tungsten-rhenium is widely used in rare earth smelting, quartz glass, electronic spraying, crystal growth and other industries
Tungsten crucible
Purity: 99.95%;
| Densities | Technique |
| 19.2g/cm3 | Forging |
| 18.2g/cm3 | Sintering |
|
Material Name |
Material Brand |
Chemical Compostion (wt%) |
Material Status |
Equivalent to Plansee Brand |
|
|
Pure W |
PW |
> 99.95% |
Sheet, Rod, Wire |
W |
|
|
HPW |
> 99.995% |
Sheet, Rod, Wire |
|||
|
Doped W |
NS-W |
NS-W91 |
65 - 75 ppm K |
Rod, Wire |
WVM |
|
NS-W61 |
65 - 75 ppm K |
Rod, Wire |
|||
|
NS-W31 |
65 - 75 ppm K |
Rod, Wire |
|||
|
NS-W41 |
30 - 70 ppm K |
Rod, Wire |
|||
|
Fine Grain W |
WKA |
15 - 40 ppm K |
Sheet, Rod, Wire |
WVMW and S-WVMW |
|
Surface: grounded, ungrounded;
Application temperature: 2300℃;
Advantages of tungsten crucible: low thermal expansion; high density; erosion resistance ; high strength and low resistivity;
Tungsten crucible applications:
Since the temperature in working of tungsten crucible is above 2000℃, it commonly used for sapphire single crystal growth furnace;
Applied for quartz glass melting furnace;
Used for rare earth smelting furn
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