Overview
Product Details
Product Description :
Graphite Crucible
Graphite crucibles are widely used in the smelting of precious metals and the smelting of non-ferrous metals and their alloys inmetallurgy, foundry, machinery, chemical and other industrial areas because of their superior properties. And has a good technicaland economic effects.
Graphite crucible has more sizes, and not restricted to the production scale, quantity and smelting materials, it can be produced to any size, any quantity, and can ensure the purity of the smelting materials.
Graphite materials has the following characteristics：
1. High temperature resistance.2. Good thermal conductivity.3. Good corrosion resistance, long service life. 4. Small coefficient of thermal expansion, and it has a certain strain resistance to quench and heat. 5. Stable chemical property and hard to react.6. Smooth inner wall, molten metal is not easy to leak and adhere to the inner wall of the crucible.
Specification：
We can process and customize according to customers' requirements
Item | Unit | Guarantee value | Guarantee value |
Max grain size | mm | 0.8 | 0.8 |
Bulk density | g/cm3 | ≥1.70 | ≥1.73 |
Specific resistance | μΩ.m | ≤8.5 | ≤8.0 |
Bending strength | MPa | ≥10.0 | ≥12.0 |
Compressive strength | MPa | ≥24.0 | ≥31.0 |
Thermal Condcutivity | W/(m.k) | ≥120 | ≥130 |
C.T.E.(100-600) °C | 10-6/°C | ≤2.5 | ≤2.5 |
Ash content | % | ≤0.3 | ≤0.3 |
high pure graphite | ||||||
Item | Unit | baked twice | baked three time | baked four time | ||
impregnated once | impregnated twice | Impregnated three times | ||||
grain size | mm | ≤325mesh | ≤325mesh | ≤325mesh | ||
Bulk density | g/cm3 | ≥1.68 | ≥1.78 | ≥1.85 | ||
Specific resistance | μΩ.m | ≤14 | ≤14 | ≤13 | ||
Bending strength | MPa | ≥25 | ≥40 | ≥45 | ||
Compressive strength | MPa | ≥50 | ≥60 | ≥65 | ||
Ash content | % | ≤0.15 | ≤0.1 | ≤0.05 | ||
Item | Unit | Isostatic graphite |
grain size | μm | 5-22 |
Bulk density | g/cm3 | 1.75-1.85 |
Specific resistance | μΩ.m | 10-15 |
Bending strength | MPa | ≥40 |
Compressive strength | MPa | ≥70 |
Shore hardness | ≥5 | |
C.T.E.(100-600) °C | 10-6/°C | 3.2-5.2 |
Modulus of elasticity | GPa | 9.5-12.5 |
Note the use of the crucible:
1. Check whether there are cracks in the graphite crucible before use.
2. After the use of dry place, avoid rain intrusion; before use to be slowly baked to 500 degrees C before use.
3. Should be based on the capacity of the crucible feeding, avoid squeeze too tight, so as to avoid thermal expansion of metal cracking crucible.
How to choose the suitable graphite crucible?
1. Please provide us detailed drawings.
2. You can also give us size (diameter, inner diameter, hight and thickness)
3. Please let us know the density of the graphite material
4. Please tell us the processing technic, whether you need polishing.
5. Please let us know any special design you want.
6. After we make sure what design you need, we can calculate the price for you.
7. Provide sample for testing
Trading Area
Global