Crucible Made Of Sintered 99.95% Tungsten For Sapphire Crystal Furnace
1.Sintered 99.95% Tungsten Crucible Measurements and Tolerances for Sapphire Crystal Furnace:
Tungsten crucible for Sapphire crystal growthing furnace
Unit:mm
| 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 |
Customized sizes can be produced based on customer needs.
2.Physical and chemical properties of Sintered 99.95% Tungsten Crucible For Sapphire Crystal Furnace:
1). Purity :W≥99.95%；
2). Density:≥18.2g/cm3；
3 ).Application temperature environment:2300℃.
| Product Name | Tungsten crucible |
| Material Composition | Tungsten |
| Purity | 99.95% |
| Density | ≥17.8g/cm3 |
| Using temperature | within2000℃ |
| Highest temperature Tolerance | 2400℃ ±0.5mm |
| Smooth degree | Ra≤3.2 |
| Quantitative analysis |
| Element | Si | Al | Fe | Bi | Mg | Pb | Ni | Mo | Ca | P |
| Concentration(%) | 0.001 | 0.0005 | 0.002 | 0.0001 | 0.0005 | 0.0001 | 0.001 | 0.002 | 0.0005 | 0.001 |
| Element | C | O | N | Sb | Cu | | | | | |
| Concentration(%) | 0.001 | 0.003 | 0.0006 | 0.0006 | 0.0006 | | | | | |
| Purity(Metallic Base) W≥99.95% |
3.Manufacturing process and equipment of Sintered 99.95% Tungsten Crucible:
| 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 quality |
4.Application of Sintered 99.95% Tungsten Crucible For Sapphire Crystal Furnace:
Since the melting point of tungsten has reached 3410℃, tungsten crucible is widely applied in industry furnace such as sapphire growth furnace, quartz glass melting furnace, and a furnace for smelting rare earths. The tungsten crucible's operating environment has a temperature of more than 2000°C. For sapphire crystal growth furnace, high-purity, high- density, a tungsten crucible without an internal fracture that also has precise measurement and a smooth surface has a significant impact on the sapphire growing process's success ratio for seed growth, pulling crystal quality control, metamictization pot commitment, and service life.
Tungsten crucible Liners are highly helpful in electron-beam evaporation because they frequently speed up the rate at which the material is being deposited and make switching between different evaporation materials easier. There are many sizes of Crucible Liners.
Company profile:
Shaanxi Peakrise Metal Co., Ltd. is an rich experienced tungsten and molybdenum non-ferrous metal production enterprise,main products include tungsten-copper alloy, molybdenum-copper alloy, tungsten-molybdenum alloy, high specific gravity tungsten alloy, tungsten alloy, molybdenum alloy and other more than 100 kinds of products.In 2010, with the surge in export sales of products in this industry, we began to focus on foreign trade export business,provide high-quality non-ferrous metal products for the international market.After years of development,at present, it has become a comprehensive non-ferrous metal production enterprise integrating manufacturing and processing, material research and development, product testing, and stock inventory.The development of nearly ten years reminds us that high-quality products and services are always our top priority,at the same time, we continue to expand into new fields and provide high-quality products and services for more domestic and global customers.Products are exported to Taiwan, Ukraine, South Korea, the United States, Australia, Germany, Iran and other countries, and have established long-term good cooperative relations with customers. Our products are highly recognized and evaluated by customers.
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