High Temperature Foundry Large Clay Graphite Crucible
Physical and chemical index
Refractory temperature: 1600℃
Carbon content: 40%
Bulk density: 1.7g/cm3
Apparent porosity : 32%
Silicon carbide content: 24%
Quality stable and reliable, and suitable for coke fired furnace and oil furnace, gas furnace,
electric furnace.Also have many models and specifications of the crucible, when the application
is not affected by the scale of production,batch size and the limitation of smelting material
varieties,can be arbitrary choice, with a strong applicability.
low caustic soda,low iron content,high silicon content, high temperature resistance and
refractoriness, quick heat transfer, high mechanical strength, oxidation resistance, thermal
shock, high density, corrosion resistance, low porosity, stable chemical performance,
good conductive performance, have a strong resistance with snap-chilling , have strong
corrosion resistance of acid and alkaline solution , excellent chemical stability.
1.Crucible need to stored in ventilated and dry environment, avoid moisture to affected application.
2.Crucible should be handling gently, do not roll, in case not to damage the protective layer on the surface of crucible
3,Before use,need baking crucible,the baking temperature from low to high slowly heat up, and constantly flipping crucible and let its uniform heat, eliminate moisture , preheating temperature gradually rises to more than 500℃ (if preheating undeserved, will lead to blowout, spalling,this not belong to quality problems, won’t be refund)
4.Crucible furnace need mating with crucible, the gap of around need to meet the requirements, furnace cover can’t pressure on the crucible.
5.Need to avoid flame spray on the side of crucible, should be sprayed to the crucible bottom.
6.When feeding raw material, should be slowly, big size material don’t install too much and tight,avoid to crack crucible.
7.Crucible tongs need suitable with crucible, to avoid damage crucible.
8.Crucible better be continuous used, in order better to play its high performance.
9.Need to periodic rotation when using crucible, for heated evenly, prolonged use
10.When remove the slag and stick cokes of crucible, should tap gently, to avoid damage to the crucible.