Best Crucible Graphite - SIC Crucibles with High Heat Resistance
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 1000 pc/month
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Quick Details for SiC Crucibles,SIC Graphite Crucible, Graphite Crucible with Hihg Heat Resistance 2015
| Type: | High Strength, graphite crucible crucible | Application: | melting metal | Height: | as your requirements |
| Composition: | High Pure | Top Diameter: | 10-600mm | Bottom Diameter: | 10-1000mm |
| Place of Origin: | China (Mainland) | Brand Name: | Model Number: | ||
| Color: | Black grey | Si3N4%: | 5min | Fe2O3%: | 0.7max |
| C%: | 30-45 | Apparent porosity: | 30max | Refractoriness: | 1680 |
| Bulk Density: | 1.71min | Using life: | >5000 hours | MAX temperature: | 1600c |
Packaging & Delivery
| Packaging Details: | Seaworty packing or as per customer's detail requirement of graphite crucible. |
| Delivery Detail: | within 20-30 days after confirm order of graphite cru |
SiC Graphite Crucibles For Melting Aluminium And Copper, Brass
Physicochemical Properties of graphite crucible:
Features of SiC 95% silicon carbide sic crucible
1. resistance to deformation at high temperature,
2. thermal shock resistance, wear resistance, corrosion resistance.
3. anti-oxidation, anti- erosion.
Usage of SiC 95% silicon carbide sic crucible
electricity and steel slag trench,
coal chemical and mining transport pipeline.
high pure graphite | ||||
Item | Unit | baked twice | baked three time | baked four times |
impregnated once | impregnated twice | impregnated three times | ||
grain size | mm | ≤325μm | ≤325μm | ≤325μm |
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 |
Fine-grain Specialty Graphite FXG-1 | Fine-grain Specialty Graphite FXG-2 | ||||
Item | Unit | Guarantee value | Typical value | Guarantee value | Typical value |
Max grain size | mm | 0.8 | 0.8 | 0.8 | 0.8 |
Bulk density | g/cm3 | ≥1.70 | 1.73 | ≥1.73 | 1.76 |
Specific resistance | μΩ.m | ≤8.5 | 7.5 | ≤8.0 | 7 |
Bending strength | MPa | ≥10.0 | 11 | ≥12.0 | 12.5 |
Compressive strength | MPa | ≥24.0 | 27 | ≥31.0 | 34 |
Thermal Condcutivity | W/(m.k) | ≥120 | 150 | ≥130 | 160 |
C.T.E.(100-600) °C | 10-6/°C | ≤2.5 | 2.2 | ≤2.5 | 2.1 |
Ash content | % | ≤0.3 | 0.09 | ≤0.3 | 0.09 |
FAQ
1.What's your MOQ?
We will indicate the MOQ for each item in the quotation list. We accept the sample and trail order.
2.Can I negotiate the Prices?
Sure, we may consider discounts for bulk order of products.
3.How long will it take to complete my order?
For the stock items, we can arrange the shippment within 2~3days after received your payment. For the customized items, we will indicate the delivery time in the quotation list.
4.Can you give warranty of your products?
Yes, we extend a 100% satifisfaction guarantee on all items. Please feel free to provide timely feedback if you're not satisfied with N&D's Quality and Service. For the overseas orders, if there is a quality problem, please kindly to provide the picturers to show the problem by e-mail. We will provide the replacements to you at our cost according to actual conditions.
5.Can I visit you?
Sure. If you're a volume buyer and would like to visit our in-house products and production line, please contact us to make an appointment.
- Q: Can a graphite crucible be used for iron melting?
- No, a graphite crucible cannot be used for iron melting. Iron has a higher melting point compared to graphite, and it requires a crucible made of a material that can withstand the high temperatures and chemical reactions involved in iron melting, such as a clay or silicon carbide crucible.
- Q: How to cast aluminum parts
- After the molten aluminum, the temperature increased to more than 850 degrees, adding silicon powder mixing, heat preservation 40-60min, the temperature of 720-750 degrees into the metal mold can be.
- Q: Why is it a change of gold? Now it's black and muddy
- The gold ingot melting drying powder into a quartz crucible, the high temperature furnace is heated to 1200 DEG C (homemade coke furnace without high temperature furnace, use a hair dryer blowing), to be full of gold powder melted out into the pre made ingot graphite good. If the gold powder is pure, after melting adding a small amount of borax, at this time should be placed in the graphite crucible melting ingot. The purification, the purity of gold reaches more than 99.6%.
- Q: Can graphite crucibles be used for melting radioactive materials?
- Graphite crucibles can indeed be used for melting radioactive materials. Graphite is known for its high melting point, excellent thermal conductivity, and chemical inertness, making it a suitable material for containing and melting various substances, including radioactive materials. Additionally, graphite has low neutron absorption properties, which is crucial when dealing with radioactive materials as it minimizes the risk of neutron-induced reactions. However, it is important to note that special precautions and safety measures should be taken when handling and melting radioactive materials to ensure the safety of personnel and prevent any potential contamination or release of harmful radiation.
- Q: You solved it. What happens if a quartz crucible is coated with a graphite crucible?
- It doesn't work, but it just adds heat resistance. You get a pretty bad heating effect when you put things in. Of course, if you put it very, very tight, the graphite crucible may crack when heated.
- Q: How does the surface tension of graphite affect crucible performance?
- Crucible performance can be significantly impacted by the surface tension of graphite. Graphite is renowned for its high surface tension, which refers to its ability to minimize surface area by forming droplets or a curved surface. This characteristic is vital in crucible performance as it affects the wettability, thermal conductivity, and erosion resistance of the graphite material. To begin with, the wettability of graphite with molten metals or other processed materials in the crucible is influenced by its surface tension. The high surface tension allows the graphite crucible to repel or resist wetting by the molten material, preventing it from sticking to the crucible walls. This is especially important in processes such as metal melting or pouring, where the crucible needs to facilitate easy release of the molten material without any adhesion or contamination. Additionally, thermal conductivity within the crucible is influenced by surface tension. Graphite possesses excellent thermal conductivity, and its high surface tension ensures efficient distribution of heat throughout the crucible. This uniform heat distribution aids in maintaining a consistent temperature profile, reducing thermal gradients, and ensuring more effective and controlled material processing. Lastly, the erosion resistance of graphite is affected by its surface tension, which is vital for the longevity of the crucible. The high surface tension of graphite enables it to resist erosion caused by molten materials or any mechanical forces acting upon it. This property helps in preventing wear and tear, maintaining the structural integrity of the crucible, and prolonging its lifespan. In conclusion, the surface tension of graphite has a significant impact on crucible performance. It affects the wettability, thermal conductivity, and erosion resistance of the graphite material, ensuring efficient material release, uniform heat distribution, and long-lasting durability of the crucible.
- Q: Is it possible to achieve controlled pouring with a graphite crucible?
- Yes, it is possible to achieve controlled pouring with a graphite crucible. Graphite is known for its excellent thermal conductivity and high melting point, which allows for precise control over the pouring process. Additionally, the smooth and non-reactive surface of graphite minimizes the risk of contamination, ensuring accurate and controlled pouring of molten materials.
- Q: How does the electrical resistivity of graphite affect the performance of a crucible?
- The performance of a crucible is heavily influenced by the electrical resistivity of graphite. Graphite, known for its conductivity, exhibits a low electrical resistivity. This characteristic has multiple impacts on the crucible's performance. To begin with, the low electrical resistivity ensures that the crucible heats up efficiently. When an electric current is applied to the graphite crucible, its low resistivity allows the current to flow easily. Consequently, heat is quickly generated, which is crucial for tasks like melting metals, glass, or other materials. The crucible's efficient heating capability enables it to reach and maintain high temperatures, ensuring the successful execution of various industrial processes. Furthermore, graphite's low electrical resistivity also aids in maintaining a uniform temperature distribution within the crucible. As the current passes through the crucible, its low resistivity guarantees that heat is evenly spread across the surface. This uniform heating prevents the formation of localized hotspots or cold spots, which could result in uneven melting or reactions within the crucible. Hence, graphite's low electrical resistivity contributes to the crucible's consistent and dependable performance. Moreover, graphite's low electrical resistivity facilitates the efficient transfer of heat from the crucible to the surroundings. As the crucible heats up, its low resistivity allows for the rapid dissipation of heat, preventing excessive temperature buildup. This aspect is particularly crucial in applications where precise temperature control is necessary to prevent damage to the crucible or the processed materials. In conclusion, the electrical resistivity of graphite has a significant impact on the performance of a crucible. Its low resistivity enables efficient heating, uniform temperature distribution, and effective heat dissipation. These attributes make graphite crucibles highly sought after in various industrial applications that require high temperatures, precise temperature control, and consistent performance.
- Q: Can a graphite crucible be used for melting americium?
- No, a graphite crucible cannot be used for melting americium. Americium is a radioactive element with a low melting point and high reactivity. Graphite crucibles are typically used for melting non-reactive materials such as metals that have higher melting points. Americium requires specialized equipment and crucibles made from materials that can handle its reactivity and potential radiation hazards.
- Q: How do you prevent thermal shock in graphite crucibles?
- To prevent thermal shock in graphite crucibles, it is essential to gradually heat and cool them. This can be achieved by preheating the crucibles before use and avoiding sudden temperature changes. Additionally, ensuring a proper and even distribution of heat during heating and cooling processes can help minimize the risk of thermal shock.
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Best Crucible Graphite - SIC Crucibles with High Heat Resistance
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 1000 pc/month
OKorder Service Pledge
OKorder Financial Service
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