Zhengzhou Sanhui Refractory Metal Co., Ltd.
Zhengzhou Sanhui Refractory Metal Co., Ltd.
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Customized Sapphire Crystal Growth 99.95% Tungsten Crucible/Pot Seamless
Description of Tungsten Crucible:
Tungsten crucible is a crucible made of tungsten. Tungsten crucible has the characteristics of high melting point, high strength and hardness, good high temperature performance, low electrical resistivity, small expansion coefficient and small electron escape work. So tungsten crucible is an important component of sapphire long crystal furnace.
As a container for high temperature environment, tungsten crucible is used in sapphire long crystal field, rare earth smelting, coating and other industries.
1. Conventional density: 17.8 g / cm3 ~ 18.3 g / cm3,
2. Special process density: more than 18.5 g / cm3.
3. The maximum outer diameter is 700mm.
Tungsten crucibles have different production processes according to different overall dimensions and service conditions. Common crucible shapes are round, square, strip, V-shaped, etc. The manufacturing process includes sintering forming, welding forming, stamping forming and spinning forming, among which sintering products are most widely used. For micro and small tungsten crucibles, forged tungsten rods can be used for turning or stamping. The welding process of tungsten sheet adopts hot bending of rolled tungsten plate, which is finally fixed by welding. Spinning is suitable for producing thin-wall tungsten crucible with high process requirements.
Condition : Sintering or forging.
| Material | Density | Size |
| w 99.95% | 19.1g/cm3(Forging) | Diameter:10-100mm; High:10-120mm |
| w 99.95% | 18.3g/cm3(Sintering) | Diameter:100-650mm; High:50-850mm |
Measurements of Customized 99.95% Tungsten Crucible(mm):
| Delivery condition | Specification | Thickness | Roughness(μm) | |
| Diameter | Height | |||
| Sinter | 10~700 | 10~1000 | 5~30 |
|
| Finished sinter | 10~650 | 10~850 | 7~25 | <2.5 |
Advantages:
We are able to supply a complete set of testing equipment for physical properties like density, hardness, surface roughness and so on. Accordingly, the possible internal injury of tungsten crucible like porosity and crack can be strictly inspected while using the eddy current tester and ultrasonic equipment, so as to ensure the high quality.
