We have special production in
tungsten crucible
manufacture. The process includes isostatic pressing, mechanical processing, sintering, mechanical processing, detection check and other further processing.Tungsten crucible applications:
Tungsten crucible is widely used to the sapphire growth furnaces, quartz glass melting furnace, crystal furnace, induction furnace, sintering metal mold of high melting point, electronic beam coating, and rare earth smelting furnace.
Properties of tungsten crucible:
Our tungsten crucible has advantages of high purity, high density, low resistivity, high strength, low thermal expansion, erosion resistance. In addition, the surface of our tungsten crucible polished, therefore, there is no crack and the inside and outside wall is smooth.
Specifications of tungsten crucible:
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 |
| 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 |
Manufacturing process and equipment
| Item | Process | Equipment | Quality Check point |
| 1 | Tungsten powder | 1.Purity of tungsten powder | |
| 2 | Sieving | High frequency vibrating screen | 2.Fsss,HB |
| 3 | Mixed powder | V shape mixer | 3.Green strength |
| 4 | Isostatic pressing | Isostatic pressing machine | 1.Measurement of rough-processed billet |
| 5 | Rough billet lathing | CNC vertical turning machine | 2.Surface quality of rough-processed billet |
| 6 | IF sintering | IF induction sintering furnace | 1.Outside measurements of finished product |
