Tungsten High Temperature Applications

Tungsten High Temperature Furnace

Tungsten high temperature resistance and melting point make it the most common choice for use in applications like high-temperature furnaces, whose heating elements, heat shields, and boats must resist working temperatures up to 1300 °C.

Likewise, in the metallurgical industry, some components of electric-resistance furnaces are made of tungsten flat products (tungsten plates, sheets, and foils). These furnaces are used to sinter refractory metals into billets and semi-finished products. The refractory metals include tungsten, molybdenum, tantalum, and niobium.

Tungsten heating elements are the core of high-temperature furnaces, where working temperatures can rise to 2800°C and remain in the 2300-2350°C range for long periods of time. Such heating elements are usually in the shape of a cylindrical shell or pieces of closed-end tungsten sheets riveted by tungsten bolts. Tungsten heat shields are the insulating components of high temperature furnaces, and riveted tungsten sheet is popular for use as the internal layers of these shields.

Tungsten High temperature Evaporation Source

Tungsten plates and sheets are a popular material for use as evaporation boats due to their very high melting point, low vapor pressure, and stable chemical properties under high temperature. During the evaporating process, tungsten ensures that no impure particles enter the vapor and penetrate the layer adhering to the base.