Graphite crucible is a commonly used high-temperature resistant container, which is widely used in metallurgy, chemical industry, electronics and other industries. The quality and service life of graphite crucibles directly affect production efficiency and product quality. Therefore, it is very important to store the graphite crucible correctly.
Characteristics of graphite crucibles
Graphite crucibles have the following properties:
High temperature resistance: Graphite has a melting point of up to 3500°C, so graphite crucibles can withstand high temperatures.
Good thermal conductivity: The thermal conductivity of graphite is 100 times that of steel, so the graphite crucible can be heated evenly and reduce heat loss.
Corrosion resistance: Graphite has good chemical stability and can resist corrosive media such as acids and alkalis.
How to preserve graphite crucibles
In order to prolong the service life of graphite crucibles, the following preservation methods should be noted:
Dry preservation: The surface of the graphite crucible has a glaze layer that prevents it from oxidation and corrosion. If the graphite crucible is wet, the glaze layer will fall off, causing the crucible to oxidize and corrode. Therefore, graphite crucibles should be stored in a dry place and sealed with a plastic bag or oiled paper.
Collision avoidance: Graphite crucibles are fragile despite their high strength. In the process of handling and use, attention should be paid to handling with care to avoid collision and falling.
Fair use: When using graphite crucibles, the following should be noted:
It should be preheated before use so that the crucible gradually warms up to the desired temperature.
Attention should be paid to uniformity when feeding, and local heating should be avoided too violently.
When melting metal, the temperature should be controlled to avoid overheating.
It should be cleaned up in time after use to prevent residues from corroding the crucible.