SiC Crucibles,SIC Graphite Crucible, Graphite Crucible with Hihg Heat Resistance 2015
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- Shanghai
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- 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 graphite crucibles be used for powder metallurgy?
- Indeed, powder metallurgy can utilize graphite crucibles. Graphite proves to be an exceptional substance for applications involving high temperatures, and it is frequently employed in powder metallurgy procedures. Graphite crucibles possess a melting point that is notably high and exhibit outstanding thermal conductivity, rendering them perfectly suited for the process of melting and retaining metal powders during sintering or melting operations. Furthermore, graphite crucibles demonstrate commendable chemical resistance, enabling them to endure the corrosive impact of specific metal powders. In summary, graphite crucibles present themselves as a dependable and efficient option for applications within the realm of powder metallurgy.
- Q:How does the shape of a graphite crucible affect the melting process?
- The shape of a graphite crucible can affect the melting process in several ways. Firstly, the shape determines the surface area exposed to the heat source, which affects the rate of heat transfer. A larger surface area allows for faster heat transfer, leading to a quicker melting process. Additionally, the shape can also impact the convection currents within the crucible. A crucible with a wider and more open shape encourages better circulation of the molten material, promoting uniform heating and melting. On the other hand, a crucible with a narrow and deep shape might impede the flow of heat and result in uneven melting. Therefore, the shape of a graphite crucible plays a crucial role in determining the efficiency and uniformity of the melting process.
- Q:What are the advantages of a graphite furnace atomizer compared to a flame atomizer?
- Graphite furnace atomic device is a type of system will be placed in the pipe wall, graphite platform, carbon sample holes or graphite crucible with electric heating to a high temperature to achieve atomization. Tubular graphite furnace is the most commonly used atomization device.
- Q:How is a graphite crucible manufactured?
- A graphite crucible is typically manufactured using a process called isostatic pressing. Isostatic pressing involves placing graphite powder into a mold and subjecting it to high pressure from all directions. This process ensures that the graphite particles are evenly compacted, resulting in a dense and homogeneous crucible. The first step in manufacturing a graphite crucible is to select the appropriate graphite material. High-quality graphite with a low ash content is typically chosen for its excellent thermal conductivity, high temperature resistance, and chemical stability. The graphite is then milled into a fine powder to ensure a consistent particle size. Next, the graphite powder is poured into a flexible rubber mold. The rubber mold is designed to withstand the high pressure that will be applied during the isostatic pressing process. The mold is carefully sealed to prevent any leakage of graphite powder. The sealed mold is then placed into a high-pressure vessel. Hydraulic pressure is applied from all directions, exerting uniform pressure on the graphite powder. This pressure compacts the graphite particles, eliminating any voids or porosity that may be present. The high pressure also helps to align the graphite particles, resulting in improved mechanical properties. Once the pressing process is complete, the mold is removed, leaving behind a green crucible. The green crucible is then subjected to a baking process called carbonization. During carbonization, the crucible is heated to temperatures of around 3000 degrees Celsius in an inert atmosphere. This process removes any volatile materials and further strengthens the crucible. After carbonization, the crucible undergoes a final machining process to achieve the desired dimensions and smooth surface finish. This may involve precision grinding, turning, or milling to ensure the crucible meets the required specifications. In conclusion, a graphite crucible is manufactured through a process called isostatic pressing, which involves compacting graphite powder under high pressure. This process, along with subsequent carbonization and machining, ensures the crucible has excellent thermal conductivity, high temperature resistance, and chemical stability.
- Q:Is it possible to repair a cracked or damaged graphite crucible?
- Repairing a cracked or damaged graphite crucible is indeed possible, but the success of the repair depends on the extent and location of the damage. Typically, specialized graphite repair compounds or pastes are used to fix these crucibles. These compounds are applied to the cracked or damaged area, and then heated to cure and bond with the existing graphite material. Once repaired, the crucible can be used again for various high-temperature applications. It is worth mentioning that the repair process might not always succeed, particularly if the damage is severe or if the crucible is compromised in a critical area. In such cases, replacing the crucible becomes necessary to guarantee the process's integrity and safety.
- Q:Does the graphite metal pad have any requirements on the sealing surface?
- Metal wound gasket:Metal wound gasket is a sealing gasket is used widely at present, in order to return to the best elastic gasket semi metallic gasket, by V or W shaped steel strips with various fillers alternately wound together, high temperature, high pressure and adapt to the use of ultra low temperature or under vacuum conditions, by changing the gasket combination of materials, can solve the problem of all kinds of chemical corrosion medium on the gasket, the structure density can according to different requirements to lock force production, in order to strengthen the body and accurate positioning, the gasket ring and the outer ring is provided with positioning reinforced metal, using internal and external steel ring to control the maximum compaction degree, the sealing surface precision requirement is not high the surface of the flange gasket contact.
- Q:Can graphite crucibles be used for carbon fiber production?
- Carbon fiber production can utilize graphite crucibles, which are often employed in high-temperature situations due to their exceptional thermal conductivity, high melting point, and chemical resistance. To create carbon fiber, graphite crucibles can be utilized to heat and liquefy the precursor materials like polyacrylonitrile (PAN) or pitch. These materials then undergo a series of steps to generate carbon fiber. Graphite, known for its high-temperature stability and lack of reactivity, serves as an ideal substance for maintaining the necessary conditions during the carbonization process. Furthermore, the smooth surface of graphite crucibles plays a significant role in achieving uniform heat distribution, an essential factor in ensuring the quality and consistency of carbon fiber production. As a result, graphite crucibles prove to be a suitable choice for the production of carbon fiber.
- Q:Is the heat conductivity of the crucible good for graphite or iron?
- Purely from thermal conductivity, it must be graphite good. Graphite crucible in addition to resistance to fall, short life, all the performance is good.
- Q:Who knows the method for determining the total iron content in iron ore?
- Iron is one of the most widely distributed metal elements in the earth, with an average content of 5% in the earth's crust and fourth after oxygen, silicon and aluminum in the element abundances. Iron minerals in nature are known to have 300 kinds, but in the current technical conditions, with industrial utilization value is mainly magnetite (iron containing 72.4% Fe3O4 (Fe2O3), hematite iron containing 70% (FeCO3) and siderite iron containing 48.2% (Fe2O3 / nH2O), limonite iron containing 48% ~ 62.9%).
- Q:How do you determine the appropriate crucible handle for a specific application?
- To determine the appropriate crucible handle for a specific application, one must consider factors such as the size and weight of the crucible, the material being melted or heated, and the temperature at which it will be used. The handle should be sturdy enough to support the weight of the crucible and provide a comfortable grip for the user. Additionally, it is important to choose a handle material that can withstand the high temperatures without melting or deforming. Consulting the manufacturer's guidelines or seeking expert advice can help in selecting the right crucible handle for the specific application.
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SiC Crucibles,SIC Graphite Crucible, Graphite Crucible with Hihg Heat Resistance 2015
- 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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