Graphite Vs Ceramic Crucible - SIC Graphite Crucibles for Melting Aluminium, Copper, Brass 2024
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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 Graphite Crucibles For Gold, Melting Aluminium And Copper, Brass
| 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
Product Description
Specifications for Graphite Silicon Carbide Crucible For Aluminum Melting :
1.Long working lifetime: its working lifetime is increased 3-5 times over normal clay-crucible due to the compact body formed under high pressure.
2.High thermal conductivity: high-density body and low apparent porosity greatly improve its heat conductivity.
3.New-style materials: new heat conduction material ensures faster heat conductivity and pollution-free product, reduces adherent slag.
4.Resistance to corrosion:better anti-corrosion than normal clay-crucible.
5.Resistance to oxidation: advanced process dramatically improves its oxidation resistance, which ensures persistent heat conductivity and long working lifetime.
6.High-strength: high-density body and logical structure make the product better compression property.
7.Eco-friendly: energy-efficient and pollution-free, not only ensure metal product purity, but also ensure sustainable development on environment.
8.Multi-function: Can be used in induction graphite crucible furnace
Physicochemical Properties of graphite crucible:
The crucible is an utensil or melting tank vessels that is made of refractory material (such as clay, graphite, quartz or difficult molten metal iron, etc.).
Graphite crucible, with is special advantages and Plasticity, is widely used in the smelting area, e.g. gold smelting, silver smelting, aluminum smelting, cooper smelting, etc.
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 |
NO | Top diameter | Bottom diameter | Height | Tolerance | Capacity(Kg5%) |
2 | 90 | 50 | 55 | 2 | 0.3 |
3 | 105 | 80 | 93 | 2 | 0.5 |
4 | 102 | 80 | 100 | 2 | 0.6 |
5 | 112 | 82 | 130 | 2 | 0.8 |
6 | 120 | 82 | 141 | 2 | 0.9 |
8 | 138 | 90 | 153 | 2 | 1.2 |
12 | 148 | 100 | 181 | 2 | 1.8 |
16 | 156 | 110 | 190 | 2 | 2.3 |
20 | 180 | 120 | 230 | 2 | 3 |
25 | 186 | 128 | 248 | 2 | 3.7 |
- Q: What material can be used to build a furnace for intermediate frequency melting of aluminium bronze?
- Pingdu City Penghui crucible refractory equipment factory is good, you can try
- Q: Can a graphite crucible be used for laser melting applications?
- Yes, a graphite crucible can be used for laser melting applications. Graphite crucibles are known for their high melting point, excellent thermal conductivity, and resistance to chemical reactions, making them suitable for high-temperature applications like laser melting. They can withstand the intense heat generated by laser beams and efficiently transfer heat to the material being melted, ensuring uniform and controlled melting. Additionally, graphite crucibles are often preferred for their durability and longevity, making them a cost-effective choice for laser melting applications.
- Q: The biggest problem with graphite crucibles must be to use in a vacuum or a reducing atmosphere
- Reducing atmosphere is in such as crucible with coke and he is using a principle that because the air has been burning up!
- Q: What are the differences in production techniques for different graphite crucible models?
- This paper introduces the production technology of graphite crucible, process forming method, technological process and requirements of production process and process of coating and sintering.
- Q: How do you prevent graphite crucibles from thermal expansion-related issues?
- To prevent graphite crucibles from thermal expansion-related issues, several measures can be taken: 1. Preheating: Before using a graphite crucible, it is essential to preheat it gradually. This process helps to eliminate any residual moisture and volatile substances within the crucible. Gradual preheating also allows the crucible to expand uniformly, reducing the risk of thermal shock. 2. Controlled cooling: After use, it is crucial to cool down the graphite crucible carefully. Sudden temperature changes can cause thermal stress and lead to cracking or fracturing. By allowing the crucible to cool gradually, the thermal expansion will be more controlled and minimize the risk of damage. 3. Avoiding extreme temperatures: Graphite crucibles have a certain temperature range within which they can safely operate. Exposing the crucible to temperatures beyond its capacity can result in thermal expansion-related issues. It is essential to adhere to the manufacturer's guidelines and avoid subjecting the crucible to extreme temperatures. 4. Proper handling and storage: Graphite crucibles are relatively fragile and can be susceptible to damage if mishandled or stored improperly. Avoid dropping or impacting the crucible, as this can weaken its structure and make it more prone to thermal expansion issues. Additionally, store the crucibles in a cool and dry environment to prevent moisture absorption, which can impact their thermal stability. 5. Regular inspection: Regularly inspect the graphite crucibles for any signs of wear, cracks, or other damage. It is important to replace any crucibles that show signs of degradation to prevent potential thermal expansion-related issues during use. By following these preventive measures, the risk of thermal expansion-related issues in graphite crucibles can be significantly reduced, ensuring their longevity and optimal performance.
- Q: How to judge the thermal stability of rubber oil?
- 1.2 sample containers, crucibles, aluminium crucibles, copper crucibles, platinum crucibles, graphite crucibles, etc. shall not react with specimens and reference materials. 1.3 air source, air, nitrogen and so on, the purity should reach the purity of industrial gas. 1.4 the cooling temperature of the cooling device of the cooling device should be up to -50 degrees centigrade. No enthalpy change occurs in the range of test temperature of 1.5 reference substance. Typical reference materials are calcined alumina, glass beads, silicone oil, or empty containers. Store in a dryer.
- Q: Is it possible to cast or mold materials using a graphite crucible?
- Yes, it is possible to cast or mold materials using a graphite crucible. Graphite crucibles are commonly used in various industries, such as metal casting, jewelry making, and foundries, due to their high melting point and excellent thermal conductivity. Graphite crucibles can withstand extreme temperatures, making them ideal for melting and casting materials like metals and alloys. Graphite crucibles also have good chemical resistance, which prevents contamination of the molten material. Additionally, graphite crucibles have low thermal expansion and are non-wetting, meaning they do not adhere to the melted material, making it easier to remove the cast or molded material once it has solidified. Overall, graphite crucibles are widely used and highly effective for casting and molding various materials.
- Q: What are the different methods of preventing graphite crucible leakage?
- There are several methods that can be employed to prevent graphite crucible leakage. One method is to ensure proper preparation and installation of the crucible. This includes thorough cleaning of the crucible surface and the mating surface of the crucible lid or cover. By removing any dirt or debris, a better seal can be achieved. Additionally, applying a thin layer of graphite lubricant or a high-temperature sealant to the mating surfaces can help create a tighter seal and prevent leakage. Another method is to use a gasket or an O-ring between the crucible and the lid. These gaskets are typically made of materials such as graphite, ceramic fiber, or metal and are designed to provide a reliable seal. The gasket is placed between the crucible and the lid, creating a barrier that prevents any molten metal or other substances from leaking out. Furthermore, proper tightening of the crucible lid or cover is crucial to prevent leakage. Over-tightening can cause damage to the crucible or the lid, leading to leaks. On the other hand, insufficient tightening can result in a loose seal, allowing for leakage. It is important to follow the manufacturer's recommendations regarding torque specifications for the lid or cover to ensure a proper seal. Regular inspection and maintenance of the crucible are also important preventive measures. Any signs of cracks, chips, or deterioration should be addressed promptly. These issues can compromise the integrity of the crucible, leading to leakage. By replacing damaged crucibles or repairing them in a timely manner, the risk of leakage can be minimized. In addition to these methods, proper handling and usage of the crucible can also contribute to preventing leakage. Avoiding sudden temperature changes, thermal shocks, and excessive mechanical stresses can help prolong the lifespan of the crucible and maintain its integrity. It is important to follow the recommended operating procedures and guidelines provided by the manufacturer to ensure the crucible's longevity and prevent leakage. Overall, by employing these methods - proper preparation and installation, using gaskets or O-rings, tightening the lid correctly, regular inspection and maintenance, and proper handling - graphite crucible leakage can be effectively prevented, ensuring a safe and efficient operation.
- Q: How is a graphite crucible used in the production of graphite electrodes?
- The production of graphite electrodes relies heavily on the use of a graphite crucible, an indispensable tool. Industries such as steelmaking and electric arc furnaces heavily rely on graphite electrodes, making the crucible an essential component in the production process. When creating graphite electrodes, the first step involves placing the raw materials into the graphite crucible. These materials usually consist of a mixture of petroleum coke, coal tar pitch, and other additives. The crucible, made from high-quality graphite material, possesses exceptional thermal conductivity and can endure extremely high temperatures. Once loaded, the crucible is then subjected to intense heat within a furnace or electric arc furnace. As the temperature rises, the raw materials within the crucible begin to melt and react with one another, resulting in various chemical reactions. These reactions ultimately lead to the formation of a homogenous molten mass. The molten mixture is then carefully poured into molds, solidifying into the desired shape of a graphite electrode. The graphite crucible is crucial in this process for several reasons. Firstly, its high melting point allows it to contain and withstand the extreme temperatures required for melting the raw materials. Additionally, it ensures that the molten mixture remains isolated from the furnace, preventing any impurities or contaminants from compromising the quality of the final electrode. Moreover, the thermal conductivity of graphite enables efficient heat transfer, resulting in the uniform melting of the raw materials. This uniformity is vital in obtaining consistent and high-quality graphite electrodes. Lastly, the chemical inertness of graphite prevents any reactions between the crucible and the molten mixture, safeguarding the purity of the final electrode. To summarize, the graphite crucible performs a crucial role in the production of graphite electrodes. Its high melting point, thermal conductivity, and chemical inertness make it the ideal choice for melting raw materials to create high-quality graphite electrodes. These electrodes meet the strict requirements of various industries such as steelmaking and electric arc furnaces.
- Q: What material of graphite is used in arc furnace production?
- Today, large diameter semi graphitic carbon electrodes have been adopted in industrial silicon electric furnaces. Can effectively save production costs, and the technology is relatively mature.
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Graphite Vs Ceramic Crucible - SIC Graphite Crucibles for Melting Aluminium, Copper, Brass 2024
- 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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