Graphite heating elements

VINER Graphite heating elements are manufactured from a high purity carbon composite providing excellent temperature uniformity, longevity, mechanical strength and repeatability. Designs use rounded edges and proper gap spacing to minimize gas ionization at elevated temperatures, increasing life expectancy and maximum obtainable temperatures.

High density graphite is the ideal material for use in vacuum heating elements. High density graphite materials are very inert, they get stronger with temperature, has low expansion coefficient and will not seize after heating. High density graphite is brittle but inexpensive and machined conventionally from large blocks, therefore very large sized graphite heating elements can be produced in a variety of shapes and sizes. Our high strength ultra fine grained graphite enables small very intricate elements to be manufactured. Graphite has a low expansion coefficient and is not degraded by constant heating and cooling, and also gets stronger as its temperature increases. It can operate over 2000C in an inert atmosphere or in vacuum and <500C if oxygen is present. 

Graphite heating elements have the ability to take very high current density, and therefore very fast ramp up times can be achieved.

ü  High capability to machine; large length or small diameter are available

ü  Different applications, different graphite materials with good  effect

ü  Different requirements, different treatments, anti-oxidation, impermeability and strengthening

ü  Homogeneous structure

ü  High mechanical strength, precision machine

ü  Excellent thermal conductivity

ü  Proper electrical conductivity

ü  Minimum wettability to molten metals

ü  Hard surface and good flexural strengTH

ü  Resistance to chemical erosion and thermal shock.