Graphite crucible is mainly used to smelt copper, brass, gold, silver, zinc and lead, and other non-ferrous metals and their alloys.
Our graphite crucible are processed with high purity isostatic pressed graphite, which has good thermal conductivity and high temperature resistance. In the process of high temperature use, the coefficient of thermal expansion is small, and it has certain strain resistance to acute heat and acute cooling. It has strong corrosion resistance to acid and alkaline solution and excellent chemical stability. The specific models can be customized with drawings and samples, and the materials are domestic graphite and imported graphite to meet the different needs of customers.
The main raw materials of graphite crucible are graphite, silicon carbide, silica, refractory clay, pitch, and tar, etc.
>High Pure Graphite Crucible
>Isostatic Graphite Crucible
>Silicon Carbide Graphite Crucible
>Silicon Carbide Crucible
>Clay Graphite Crucible
>Quarts Crucible
Features:
1. Long working life time
2. High thermal conductivity
3. New-style materials
4. Resistance to corrosion
5. Resistance to oxidation
6. High-strength
7. Multi-function
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Technical Data of Material |
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Index |
Unit |
Standard value |
Test value |
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Temperature Resistance |
℃ |
1650℃ |
1800℃ |
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Chemical Composition |
C |
35~45 |
45 |
|
SiC |
15~25 |
25 |
|
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AL2O3 |
10~20 |
25 |
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SiO2 |
20~25 |
5 |
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Apparent Porosity |
% |
≤30% |
≤28% |
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Compressive Strength |
Mpa |
≥8.5MPa |
≥8.5MPa |
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Bulk Density |
g/cm3 |
≥1.75 |
1.78 |
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Our silicon carbide crucible is isostatic forming, which can use 23 times in furnace, while others only can use 12 times |
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