The properties of graphite make it an ideal material for components which are used inside vacuum furnaces.
In the case of furnace elements, graphite's excellent electrical characteristics and machinability means that complex shapes can be formed that provide the necessary power to heat the furnace.
In the production of hard metals, graphite's resistance to attack and stability at high temperature ensures that the final product meet its specification.
Vacuum brazing of components is carried out under strictly controlled conditions in the furnace. Parts have to be held within close tolerances and be heated with no distortion at all. Jigs and fixtures need to be made from a material with exceptional thermal properties, strength at high temperatures and high abrasion resistance.
Graphite is the preferred material. For those applications where graphite is unsuitable Silicon Carbide parts are available through TKK (Tokai Konetsu Kogyo).
