1.Tungsten Crucible for Sapphire cyrstal growth furnace 2.Materials:pure tungsten 99.95%Min 3.Size: OD350 X H400mm
Tungsten Crucible
Tungsten crucible is mainly used for rare earth, sapphire single crystal growth furnace , quartz glass, metal extracting, metallurgical industry, machinery processing, glass and ceramic industries, etc.
Delivery condition | Specification | Tolerance | Thickness | Roughness (μm) | ||
Diameter | Height | Diameter | Height | |||
Sinter | 10~700 | 10~1000 | ±5.0 | ±5.0 | 5~30 |
|
Finished sinter | 10~650 | 10~850 | ±0.5 | ±1.0 | 7~25 | <2.5 |
2.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 |
7 | Competitive products lathing | High-accuracy vertical turning machine | 2 Surface quality and roughness of finished product,density |
8 | Package |
| 3 Show certificate of qua |
Chemical composition: tungsten >99.95% ( percentage by weight)
Density: >18.3g/cc
Specification: Diameter: Dia100----Dia400mm Height: H200—H500mm
Surface finish : < Ra3.2 shining furnace
Working temperature: 1800 ~ 2600 In Vacuum or deoxidize atmosphere
Produce Method: Powder Metallurgy
SMT’s advantage in tungsten crucible:
1)Large size, high purity, high density, Smooth furnace
2)Long history of supplying the tungsten crucible for Single crystal growth furnace and silicon produce furnace
3)Competitive price & professional service.
SMT’s contact information:
Xi’an Htemps Metal Materials Co.,Ltd.
Tel: 0086-29-81320779 81320782 Fax: 0086-29-81320781
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