Tungsten Crucible
Products Features
In industries that use high heat, tungsten crucibles are very crucial. They function truly well. Formerly, these were constructed from very pure tungsten powder using unique techniques. These cups remain durable and perform well even when it's super hot. This helps ensure operations are very precise in sophisticated areas like cultivating specific gemstones and liquefying particular substances.
High temperature resistance
Tungsten crucibles can manage extremely high warmth (they melt at 3422°C), significantly superior compared to carbon (which turns to. Suddenly, gas at high temperatures), pottery (which gets malleable around 1500 - 1800°C), and common precious metals (which function securely up to 2200°C).
Corrosion resistant
They are also resistant to counter-corrosives and alkalis. Meanwhile, subsequently, they create a defensive coating to prevent them from corroding in the atmosphere. Eventually, their capability to transmit energy remains effective even when hot, so the objects' thermal energy is distributed evenly and performs more effectively. They are also highly solid and durable, so they don't shatter easily from striking alternatively abrupt temperature changes. Variations, dissimilar to earthenware, which can fissure or else blacken the one that exists pliable.
Products Parameter
| Specific Index | Technical Requirements/Ranges |
| Tungsten Powder Purity | ≥99.95% |
| Tungsten Powder Particle Size | 2.5μm - 3.0μm |
| Tungsten Powder Tap Density | 2.8g/cm³ - 3.2g/cm³ |
| Oxygen Content | ≤0.1% |
| Isostatic Pressing Pressure | 245MPa - 260MPa |
| Sintering Temperature | 2200°C - 2250°C |
| Mold Taper | Adapted to demolding requirements |
| Latex Sleeve Specification | Inner diameter 6mm - 10mm larger than core mold; thickness 2mm - 4mm |
| Thermal Conductivity | Stable thermal conductivity at high temperatures |
| Structural Integrity | Arc transition between bottom and wall, no stress concentration areas |
Application Advantages
Sapphire Single Crystal Growth
Sapphire crystal production (2050°C Al₂O₃ melting) relies on tungsten-molybdenum thermal fields, with tungsten crucibles as core components. Since 2008, the company has supplied Kyropoulos method thermal fields globally with positive feedback. Advanced equipment ensures crucible density >18.6 g/cm³, improving grain uniformity and service life.
Semiconductor Material Preparation
Tungsten crucibles are used for silicon and compound semiconductor growth. Their low vapor pressure and chemical inertness guarantee high-purity environments, while high-temperature resistance (≥2000°C) meets requirements for GaN PVD and SiC sublimation growth.
Laser Crystal Preparation
Tungsten crucibles facilitate high-quality laser crystal growth (e.g., YAG) via uniform temperature distribution and high thermal conductivity, supporting precise high-temperature control.
After-Sales Service
The company provides full after-sales support: technical advice is available. Confirmed quality issues require intact material retention for handling. Adhering to the tenet of "keeping promises, practical work", we deliver high-quality products and services.
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