What is a Graphite Crucible?
- A graphite crucible is a container used for melting and casting non-ferrous, non-iron, metals such as gold, silver, aluminum, and brass.
- The quality of a graphite crucible is determined by how it is manufactured, which influences its structure, density, porosity, and strength.
- Graphite crucibles are ideal for melted metal processes because they are non-reactive and able to survive extremely high temperatures.
- The type of metal to be processed determines the type of graphite crucible that will be used.
- The manufacturing of graphite crucibles involves the use of clay-graphite-ceramic bonded or silicon-carbide-carbon bonded materials that use the refractory properties of silicon and graphite to conduct heat but add structural strength.
- There are two forms of graphite used in the production of graphite crucibles - synthetic and natural.