The Difference Between Graphite Crucible And Quartz Crucible
Nov 08, 2022
Crucible is an important part of chemical instrument. It is a container for condensing and refining metal liquid and solid-liquid heating and reaction. It is the basis for ensuring the smooth stop of chemical reaction. They differ in:
1. The graphite crucible is black and the quartz crucible is white.
2.The thermal conductivity of graphite crucible is much better than that of quartz crucible, and due to different components,
- There is resistance in graphite material
(1) When the high-frequency current passes through, the graphite crucible heats the metal material through its own induction heating. it can be directly conductive and heated by electrode.
(2) Smelting range: copper, gold, K gold, silver, alloy, etc.
- Quartz has no resistance
(1) When the medium frequency current passes through, the metal material in the quartz crucible generates induction heating.
(2) Quartz crucible does not generate heat. It is suitable for smelting: gold, palladium, stainless steel, gold, iron, aluminum, etc.
3. The melting point of the contents of graphite crucible that can stop heat treatment and burning is more than 1000 degrees higher than that of quartz crucible, but the Quartz crucible is more resistant to high temperature than graphite crucible.
4. Quartz crucible is cheaper which compared with graphite crucible.
