Tungsten Crucible in Aerospace High Temperature Alloy Melting
Tungsten crucible in aerospace high temperature alloy melting refers to a critical refractory vessel manufactured from high-purity tungsten material (W≥99.95%), primarily used for high-temperature melting and thermal field control of aerospace materials such as nickel-based superalloys, cobalt-based superalloys, titanium alloys, and refractory metals.
With the highest melting point among all metals, tungsten enables tungsten crucibles to operate stably for extended periods at temperatures ranging from 1800°C to 2600°C under vacuum or an inert atmosphere, highly resisting melting, softening, or appreciable deformation. Its extremely low vapor pressure minimizes evaporation loss at elevated temperatures, effectively reducing material volatilization and contamination. Furthermore, tungsten crucibles feature a low coefficient of thermal expansion, high thermal conductivity, and excellent thermal creep resistance, which helps maintain a uniform temperature distribution and enhances melting process stability and alloy quality consistency.
Why Use Tungsten Crucibles for Aerospace High Temperature Alloy Melting?
Why choose tungsten crucibles for superalloy melting instead of graphite or ceramic crucibles? The melting process of superalloys requires more than just containing high-temperature liquid metal; it demands strict control over the content of oxygen, carbon, and other impurity elements to guarantee the high-temperature strength, creep resistance, and oxidation performance of the alloys. Standard graphite crucibles easily introduce carbon contamination at elevated temperatures, compromising alloy purity. Meanwhile, conventional ceramic crucibles suffer from poor thermal shock stability and a high risk of cracking, failing to meet the demands of extreme temperatures and prolonged melting cycles. High-purity tungsten crucibles exhibit strong chemical inertness, effectively minimizing metal contamination and volatilization risks. This makes them ideal for aerospace superalloy systems with stringent purity standards, ensuring stable melt composition and the ultimate performance of critical components.
Applications of CTIA's Tungsten Crucibles in Aerospace High Temperature Alloy Melting
（1）Vacuum induction melting (VIM).
（2）Electron beam melting (EBM) and vacuum metallurgical systems.
（3）Aerospace engine blade materials and single crystal superalloy preparation.
（4）Melting experiments of titanium alloys, tungsten alloys, and refractory metals.
（5）Thermal field research of ultra-high temperature materials and high-purity metal refining.
Specifications of CTIA's Tungsten Crucibles
（1）Purity：W ≥ 99.95%
（2）Density：17.8 ~ 18.5 g/cm³
（3）Diameter：20 ~ 700 mm
（4）Height：20 ~ 800 mm
（5）Wall Thickness：2 ~ 35 mm
（6）Operating Temperature：≤ 2600°C, in vacuum or protective atmosphere
（7）Structural Configurations：Cylindrical, tapered, thickened bottom, lidded, or customized
CTIA GROUP has specialized in tungsten crucible manufacturing for over 30 years, providing high-purity tungsten crucibles in diverse structures and processing routes for aerospace material enterprises, superalloy manufacturers, and vacuum metallurgical equipment suppliers.
For any inquiry, please contact tungsten crucible manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: www.tungsten.com.cn
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