Pure Tungsten Crucible
2,Diameter:10-630mm height:100-750mm
3,high quality , best price
W1 99.95% tungsten crucible for melting
1 Purity W≥99.95%
2 Density≥18.2g/cm3
Dimensions and tolerance(According to clients’ requirements )
Delivery condition | Specification | Tolerance | Thickness | ||
Diameter | Height | Diameter | Height | ||
Sinter | 10~700 | 10~750 | ±5.0 | ±5.0 | 8~20 |
Finished sinter | 10~650 | 10~550 | ±0.5 | ±1.0 | 7~18 |
Item | Process | Equipment | Quality Check |
1 | Powder purified | Purified furnace | GDMS |
2 | Isostatic pressing | Isostatic pressing machine | Measurement of rough-processed |
3 | IF forging | High-accuracy forging machine | Dimension measurements for product |
4 | IF sintering | High temperature vacuum sintering furnace | Dimension measurements for product |
5 | Final machining | High-accuracy turning machine | Surface quality/ roughness and density |
6 | Package |
| Quality Test Report |
product process
Application:
Since the melting point of tungsten has reached 3410°C, tungsten crucible is widely applied in industry furnace such as sapphire growth furnace, quartz glass melting furnace, and reare earth smelting furnace. The temperature in working environment of tungsten crucible is above 2000°C. For sapphire crystal growth furnace, high-purity, high-density, no internal-crack tungsten crucible with other features of exact measurement and smooth inner surface has decisive influence on success ratio of seed growth, quality control of pulling crystal, metamictization pot-committed and service life during sapphire growth process.