Refractory Crucibles Sic Crucible For Brass
- Ref Price:
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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 Refractory Crucibles Sic Crucible For Melting Copper/Brass/Aluminum
| 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 |
Refractory Crucibles Sic Crucible For Melting Copper/Brass/Aluminum
Physicochemical Properties
Type of Crucible | Type S | Type D |
Carbon Content/% | ≥38 | ≥45 |
Bulk Density/(g/cm3) | ≥1.70 | ≥1.85 |
Apparent Porosity/% | ≤29 | ≤21 |
Compression Strength/MPa | ≥20 | ≥25 |
Refractoriness/°C | ≥1400 | ≥1400 |
Type S: Clay graphite crucible
Type D: Isostatic pressing graphite crucible
Cited from CNS China National Standard of Graphite Crucible, which is solely drifted by TIANFU company.
Content Composition
C% | Sic% | AL2O3% | SIO2% |
45%-50% | 20%-30% | 10%-12% | 15-25% |
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.
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- Q: Can a graphite crucible be used for sapphire crystal growth?
- Yes, a graphite crucible can be used for sapphire crystal growth. Graphite crucibles are commonly used in high-temperature applications, such as crystal growth processes. Sapphire crystal growth requires high temperatures, typically above 2000°C, and graphite crucibles are capable of withstanding these extreme temperatures without reacting or contaminating the crystal. Additionally, graphite crucibles have excellent thermal conductivity, which helps in maintaining a uniform and consistent temperature during the crystal growth process. Hence, graphite crucibles are a suitable choice for sapphire crystal growth.
- Q: How do you determine the appropriate crucible diameter for a specific application?
- The appropriate crucible diameter for a specific application is typically determined by considering factors such as the desired sample size, the melting or reaction temperature, the thermal conductivity of the material being heated, and the available heating equipment. Additionally, the crucible should have sufficient room for the sample to expand during heating without overflowing. It is important to consult relevant literature, technical specifications, or seek expert advice to ensure the appropriate crucible diameter is selected for the specific application.
- Q: Can a graphite crucible be used for lead melting?
- Yes, a graphite crucible can be used for lead melting. Graphite crucibles are commonly used in foundries and metallurgical industries for melting various metals, including lead. Graphite has a high melting point, excellent thermal conductivity, and chemical resistance, making it suitable for high-temperature applications like lead melting. Additionally, graphite crucibles are durable and can withstand repeated use, making them a cost-effective choice for melting lead. However, it is important to ensure that the graphite crucible is in good condition and free from any impurities or contaminants that could affect the quality of the melted lead.
- Q: How do you prevent graphite crucibles from erosion during use?
- To prevent erosion during the use of graphite crucibles, it is crucial to follow several key measures: 1. Begin with Proper Preconditioning: Prior to using a new graphite crucible, it is imperative to gradually heat it to high temperatures and then gradually cool it down. This process eliminates any impurities on the surface and enhances its erosion resistance. 2. Handle with Care: It is vital to handle graphite crucibles cautiously to prevent physical damage that may result in erosion. Avoid dropping or banging them against hard surfaces, and use appropriate tools for handling. 3. Control Heating and Cooling: Rapid and extreme temperature fluctuations can lead to thermal shock and expedite erosion. It is essential to heat and cool the crucible gradually and uniformly, avoiding sudden changes in temperature. 4. Choose the Right Flux: The selection of flux greatly impacts crucible erosion. It is important to opt for a flux that is compatible with graphite and has a minimal corrosive effect. Regularly check and maintain the flux composition to prevent erosion. 5. Maintain Regular Cleaning: After every use, it is crucial to thoroughly clean graphite crucibles to eliminate any residue or impurities that could cause erosion. Utilize appropriate cleaning techniques and materials to avoid scratching or damaging the crucible. 6. Prevent Contamination: Contamination from foreign materials can contribute to erosion. It is vital to ensure that only suitable materials are used in the crucible and that it does not come into contact with any foreign substances during use. By implementing these preventive measures, erosion can be significantly reduced, extending the lifespan of graphite crucibles and ensuring their optimal performance and cost-effectiveness.
- 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 crucibles are widely used in various industries, including metal casting and melting, due to their unique properties. Graphite has a high melting point, excellent thermal conductivity, and good resistance to thermal shock, making it suitable for handling high-temperature materials. To achieve controlled pouring with a graphite crucible, several factors need to be considered. Firstly, the crucible should be properly preheated to the desired pouring temperature. This ensures that the molten material remains at the desired temperature during pouring, preventing premature solidification. Secondly, the design of the crucible and its pouring lip should allow for precise control over the flow of the molten material. The pouring lip can be shaped to achieve a steady and controlled stream, reducing the risk of splashing or spilling. Furthermore, the operator's skill and experience play a crucial role in achieving controlled pouring. They need to have a good understanding of the material being poured, its characteristics, and the appropriate pouring techniques. They should also be aware of any potential hazards and take necessary precautions to ensure safety during the pouring process. In summary, while achieving controlled pouring with a graphite crucible is possible, it requires proper preheating, appropriate crucible design, and skilled operators. By considering these factors, it is possible to achieve precise and controlled pouring for various applications.
- Q: Can a graphite crucible be used for titanium melting?
- No, a graphite crucible cannot be used for titanium melting. Titanium has a very high melting point of 1,668 degrees Celsius (3,034 degrees Fahrenheit), which exceeds the maximum temperature capability of graphite (around 3,000 degrees Celsius or 5,432 degrees Fahrenheit). As a result, using a graphite crucible for titanium melting would cause the crucible to deteriorate and potentially contaminate the titanium. Instead, a crucible made of materials such as zirconium or ceramic should be used for titanium melting, which can withstand the high temperatures required for the process.
- Q: What are the considerations for selecting a crucible support for graphite crucibles?
- When selecting a crucible support for graphite crucibles, several considerations come into play. Firstly, the material of the support must be compatible with graphite, as graphite crucibles can reach high temperatures and require a support that can withstand these conditions without reacting or degrading. Common materials for crucible supports include ceramic and refractory metals. Secondly, the design of the crucible support should provide stability and proper alignment for the crucible. It should be able to securely hold the crucible in place to prevent any shifting or tipping during heating or pouring processes. Furthermore, the size and shape of the crucible support should be selected to accommodate the specific dimensions and weight of the graphite crucible. It is important to ensure that the support is strong enough to safely bear the weight of the crucible, avoiding any potential breakage or accidents. Lastly, cost-effectiveness and ease of maintenance should also be considered. The crucible support should be reasonably priced and should not require frequent replacement or extensive maintenance. Overall, when selecting a crucible support for graphite crucibles, one must consider compatibility, stability, dimensions, cost, and maintenance requirements.
- Q: Can quartz ceramic crucibles instead of graphite crucibles?
- Graphite conducts electricity. Sometimes it takes graphite to heat it, though it is rare, so it can not be replaced
- Q: How does the shape of a graphite crucible affect the melting process?
- The shape of a graphite crucible can significantly affect the melting process. Graphite crucibles are commonly used in high-temperature applications such as melting metals, alloys, and other materials. The shape of the crucible determines the efficiency and effectiveness of the melting process. Firstly, the shape of the crucible affects the heating and cooling rates of the material being melted. A crucible with a wider and flatter shape will have a larger surface area exposed to the heat source, allowing for faster and more uniform heating. This can result in a quicker melting process and better heat distribution throughout the material. On the other hand, a crucible with a narrower and taller shape will have a smaller surface area exposed to the heat, which can lead to slower and less uniform heating. Secondly, the shape of the crucible can influence the convection currents within the material being melted. Convection currents are the flow of liquid or gas due to temperature differences. A crucible with a wide and shallow shape promotes the movement of the molten material, allowing for better mixing and homogenization. This can be particularly important when melting alloys or materials with different melting points. Conversely, a crucible with a narrow and deep shape may impede the movement of the molten material, resulting in less effective mixing and potential stratification. Additionally, the shape of the crucible can also affect the crucible's ability to withstand thermal expansion and contraction. During the melting process, the crucible is exposed to extreme temperatures, which can cause it to expand and contract. A crucible with a shape that allows for more even and controlled expansion and contraction is less likely to crack or break under thermal stress. In conclusion, the shape of a graphite crucible plays a crucial role in the melting process. A well-designed crucible shape can promote faster and more uniform heating, improve mixing and homogenization, and enhance the crucible's durability against thermal stress. Therefore, selecting the appropriate crucible shape is essential for achieving optimal melting results.
- Q: Why graphite and diamond is composed of carbon graphite, but not light, is black, and the diamond is urgently in light!
- Because they are allotropes. The structure determines the nature of diamond (diamond). The spatial configuration is tetrahedron structure (SP3 hybrid), and graphite is a planar type (hybrid SP2).
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Refractory Crucibles Sic Crucible For Brass
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 1000 pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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