Silicon carbide crucible

Silicon carbide crucible is mainly made of silicon carbide as the main raw material, clay or other components (reaction sintering) as a binder and is molded plastically.

Characteristics and Application of Silicon Carbide Crucible

Silicon carbide crucible has these characteristics, like high strength, wear resistance, erosion resistance, good corrosion resistance, high thermal conductivity, excellent resistance to thermal shock, etc., and widely used in powder metallurgy, calcination of materials of negative electrodes of batteries and other areas.

Types of crucibles

Crucibles are mainly divided into two types: oxide crucibles and graphite crucibles. Oxide crucibles mainly include alumina crucibles, magnesia crucibles, clay crucibles, ash cups, etc.. Graphite crucibles mainly include high purity graphite crucibles, graphite silicon carbide crucibles and silicon carbide crucibles

How to extend the service life of silicon carbide crucible？

Choosing only the right crucible size, that suits your purpose, is the first step towards ensuring long service life of the crucible

Keep careful records of crucible usage and check crucibles frequently. Accurate documentation of crucible usage is critical to efficient crucible use and safe operation..

Control scale formation with regular cleaning. Frequent removal of scale and slag is required.

Prevents chemical attack by minimizing the use of flux, which can only be added after, how the metal completely melts.

Each crucible has a maximum temperature limit. If this limit is exceeded, the crucible will be damaged and may not function properly..

Preheating SiC graphite crucible prevents thermal shock. Crucibles require careful preheating. Thermal shock can cause cracks in crucibles, that heat up too quickly.

Although installing the crucible is quick and easy, instructions regarding base dimensions must be followed, the gap between the crucible and the furnace and the initial preheating of the crucible.

Silicon carbide graphite crucibles should be cleaned and properly stored after each use. Avoid stacking crucibles on top of each other, this may damage them.

What is the difference between graphite crucible and silicon carbide crucible?

The difference between these two crucibles is the different composition of the crucible material. Graphite crucible is mainly made of graphite material, while silicon carbide crucible is mainly made of silicon carbide. Graphite crucibles are designed for melting such metals, like gold, silver, copper and aluminum. Silicon carbide crucibles are used for melting in large induction furnaces, they are durable and do not oxidize or decompose.