Tungsten mesh heater- A largely used material for furnaces

Tungsten mesh is a recommended material for use as a furnace heating component. By virtue of its outstanding properties, tungsten mesh withstands multiple heat cycles without degradation hence providing long service life. A large surface area provides good watt density and resistance can be adjusted to increase efficiency.

Tungsten is known to be easily oxidized even at moderate temperatures. Tungsten basis heater brings the revolutionary performance. Offering comfort over traditional portable heater while fueled by same gas cylinder, the tungsten basis heater provides directional and evenly heating in an effective and efficient manner.

Tungstenmesh’s unique properties maximize the heater performance while providing superior heat distribution. Tungsten mesh screen provides significant wind resistance when combined with double thermocouples, providing suitable service in winds running at speed of 12 km/h.

High temperature heating Tungsten mesh known for its high melting temperature is widely used in manufacturing high temperature furnaces, heating elements and insulation screens. Tungsten heating mesh can be used up to 2800oC or 5070oF in vacuum.

How to choose a furnace heating element

The commonly used materials for furnace manufacture are tungsten, molybdenum and tantalum. These metals are also widely used as racks, skids and boats for material processing for example sintering, annealing and vacuum brazing. Advantages of refractory metals comprise good electrical properties, low vapor pressure, low electrical resistivity and nominal heat capacity. A crucial property of a refractory metal is low thermal capacity. A furnace heating element with low heat capacity quickly heats up and cools down. Energy savings are ensured because heat does not waste during heating the materials.

Tungsten also provides outstanding resistance to molten glass hence is fit for use with dies and mandrels and as electrodes in the melting operations. While choosing a refractory metals for furnace applications, service conditions and properties of the product under processing is also considered. Tungsten is the most commonly used refractory metal in furnace conditions. The refractory metals are readily fabricated by traditional methods but tungsten is difficult to fabricate. It has major applications in high temperature applications up to 2800oC in inert or protective and reducing conditions. At such high temperatures, it is challenging to insulate the hot region. It is common to use tungsten in a vacuum or low partial pressure condition.

Tungsten mesh in the finished form inherits the properties of tungsten providing outstanding heat resistance and electrical resistivity. It is widely used for radiation shielding and as a heating element for vacuum furnace. For its outstanding corrosion resistance, it is used as filter or sieve material for service in acid and alkali environments.

Major application fields of Tungsten mesh include: acid production, filtration, heat shielding, electronics, battery, vacuum equipments, chemical plants and science research labs. Tungsten mesh when used in heaters is formed and welded. It is highly durable and can withstand higher temperature above 2000oC. For its excellent properties, Tungsten mesh is largely used in the construction and design of components for high temperature furnaces. Tungsten mesh heater provides high performance radiant heating to outdoor and semi-enclosed areas. Its high temperature performance makes it usable in all conditions.