The important application of molybdenum electrodes in high-temperature furnaces
Molybdenum electrodes play a key role in high-temperature industrial furnaces due to their excellent high-temperature resistance, high electrical conductivity and good corrosion resistance. High-temperature furnaces are widely used in processes such as material sintering, smelting, and heat treatment. Their working temperatures can typically reach over 1600° C. Molybdenum electrodes can operate stably and have become indispensable electric heating elements or conductive components. In high-temperature furnaces, the main functions of molybdenum electrodes include: serving as electric heating elements to directly generate electricity and heat, providing a high-temperature environment for the smelting or sintering of metals (such as titanium, zirconium, and tungsten) and ceramic materials; As a conductive electrode, it transmits large currents, such as in an electron beam melting furnace (EBM) or a plasma melting furnace; And as a supporting and connecting component, it takes advantage of its property of maintaining high strength at high temperatures to fix or connect other high-temperature resistant materials. Its typical application scenarios include vacuum sintering furnaces (for high-temperature sintering of hard alloys, ceramics or special powder metallurgy), single crystal growth furnaces (such as sapphire and silicon single crystal preparation), and metal heat treatment furnaces (such as molybdenum wire furnaces for annealing or heat treatment of tungsten and molybdenum alloys, with temperatures up to over 2000°C).
The advantages and challenges of molybdenum electrodes
Molybdenum electrodes have significant advantages, such as a melting point as high as 2620°C and superior high-temperature strength compared to most metals. Low vapor pressure, suitable for use in a vacuum environment; And it is resistant to corrosion by molten metals and ceramics, with a long service life. However, molybdenum electrodes also face some challenges, such as being prone to oxidation at high temperatures and requiring protection with argon or hydrogen. In addition, it is relatively brittle and mechanical shock should be avoided during use.
Future development trends and conclusions
With the continuous increase in the requirements for energy efficiency and precision in high-temperature processes, the purity and structural optimization of molybdenum electrodes will become a research focus. For instance, by doping rare earth elements to enhance their oxidation resistance, they can better meet the demands of high-end manufacturing industries such as aerospace and semiconductors. Overall, molybdenum electrodes are the core components of high-temperature furnaces, and their performance directly affects the stability of the furnace and the quality of the products. Despite challenges such as anti-oxidation, molybdenum electrodes will still maintain an irreplaceable position in high-temperature industries through reasonable process control.
Mosten Alloy can produce molybdenum sheet, molybdenum block, molybdenum foil, molybdenum rod, molybdenum wire, molybdenum processing workpiece according to customer demand.
