Description
What is a graphite crucible?
Graphite crucible has good thermal conductivity and high temperature resistance. During high temperature use, the thermal expansion coefficient is small and has certain strain resistance to rapid heating and cooling. It has strong corrosion resistance to acid and alkaline solutions and excellent chemical stability.
In metallurgy, casting, machinery, chemical industry and other industrial sectors, it is widely used in the smelting of alloy tool steel and the smelting of non-ferrous metals and their alloys, and has good technical and economic effects.
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Composition chimique
| Élément | Ingrédients principaux | Percent Range(%) |
|---|---|---|
| graphite | C | 70-90 |
| clay | Al₂O₃·2SiO₂·2H₂O | 5-20 |
| additive | Silicon (Si), etc.. | 0-15 |
Propriétés physiques
| Performance Indicators | Numérique |
|---|---|
| Conductivité thermique | 150-200 W/m·K |
| Expansion coefficient | 2.5-5.0 × 10^-6 /°C |
| Maximum operating temperature | 3000 °C |
| densité | 1.8-2.3 g/cm³ |
Key Features
- Good thermal conductivity and high temperature resistance: it can work stably in high temperature environment, with small thermal expansion coefficient and certain strain resistance to rapid heating and cooling.
- Résistance à la corrosion: It has strong corrosion resistance to acid and alkaline solutions and is suitable for a variety of chemical environments.
- Stabilité chimique: it has strong corrosion resistance to acid and alkaline solutions and has excellent chemical stability
- Does not participate in chemical reactions: During the smelting process, it does not participate in any chemical reactions
- Good metal fluidity: The inner wall of the graphite crucible is smooth, and the molten metal liquid is not easy to leak and adhere to the inner wall of the crucible, so that the metal liquid has good fluidity and castability
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how to make a graphite crucible？
plastic forming production process et cold isostatic pressing production process
- Although the plastic forming process requires less investment, it has high labor intensity, low efficiency and high pollution;
- The cold isostatic pressing process uses clean energy natural gas sintering, which fundamentally solves the pollution problem and reduces nearly 10 production processes, with a short cycle and high efficiency.
graphite crucible size chart
| model | high (mm) | diameter (mm) | capacity (L) |
|---|---|---|---|
| 250 | 100 | 120 | 1.5 |
| 300 | 120 | 150 | 2.5 |
| 400 | 150 | 200 | 5.0 |
| 500 | 180 | 230 | 8.0 |
| 600 | 220 | 300 | 12.0 |
The above data is for reference only. If you have any customized requirements, please contact us at Henan LiTe Refractory Materials Co., Ltée.
How many times can you use a graphite crucible?
200 fois
According to the Chinese Academy of Sciences, the number of times the negative electrode material uses the crucible is 200 fois. If it exceeds this number, it will be damaged and affected.
how to temper a graphite crucible
Preheating, removing metal residues, using additives properly, pre-installation preparations, and heating and cooling processes are all important steps to extend the service life of a graphite crucible.
how to clean a graphite crucible
Include water cleaning, acid cleaning, high temperature cleaning, inorganic salt melting cleaning, and physical grinding.
Precautions for using graphite crucible
- Before use, it needs to be heated and baked next to the furnace, and the temperature gradually rises to 500℃.
- When adding materials, it should be based on the capacity of the crucible. Do not add too much material or too tight to prevent the crucible from shrinking.
- The furnace removal tool and crucible clamp should conform to the shape of the crucible, and clamp the middle to prevent damage to the crucible.
- During use, turn the crucible once a week to extend its service life.
Utilisations
Used in the auto parts, electronics and new materials industries, graphite crucibles are high-temperature vessels for melting and holding non-ferrous metals and new materials.
It can also be used for refining and purifying non-ferrous metals and new materials.
Graphite crucible near me
graphite crucible manufacturers in china Henan LiTe welcomes you! Henan LiTe graphite crucible for sale
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