Luoyang Hypersolid Metal Tech Co., Ltd
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Forging / Sintering Tungsten Crucible 0.5 - 100 Litres
Tungsten Crucible Feature
1. According to different processing methods, tungsten crucibles for vacuum coating can be mainly divided into sintered molding, press molding, spinning molding, turning forming, and welding forming.
2. Turning to form is mainly applied. We recommend the working temperature of the tungsten crucible for vacuum coating should be controlled below 2600℃.
3. We can produce a tungsten crucible for vacuum coating according to the customer's drawing.
Specification
| delivery condition | specification | tolearance | thickness | roughness | ||
| diameter | height | diameter | height | |||
| sintered | 10-550 | 10-750 | +/-5.0 | +/-5.0 | 8-20 | ＜3.5 |
| sintering finishing | 10-450 | 10-550 | +/-0.5 | +/-1.0 | 7-18 | ＜2.5 |
| Atomic number | 74 |
| CAS number | 7440-33-7 |
| Atomic mass | 183.84 [g/mol] |
| Melting point | 3420 °C |
| Boiling point | 5555 °C |
| Density at 20 °C | 19.25 [g/cm3] |
| Crystal structure | Body-centered cubic |
| Coefficient of linear thermal expansion at 20 °C | 4.410-6[m/(mK)] |
| Thermal conductivity at 20 °C | 164 [W/(mK)] |
| Specific heat at 20 °C | 0.13 [J/(gK)] |
| Electrical conductivity at 20 °C | 18.2106[S/m] |
| Specific electrical resistance at 20 °C | 0.055 [(mm2)/m] |
Tungsten Crucible Application