Refractory Crucibles Sic Crucible For Brass/Aluminum
- Ref Price:
-
- 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% |
Packaging & Shipping
Package: Wooden case and wooden pallet or pack as customer's requirement of graphite crucible.
Delivery time: depend on distance, usually 20 days to 50days after deposit of graphite crucible.
We can supply the products according to customer's drawings, samples and performance requirement.
Other Products
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.
Welcome to visit our factory.
- Q:Medium frequency furnace plus graphite crucible does not start
- If the furnace does not start, that the magnetic induction coil is touched, because the graphite graphite crucible and conduct electricity, may be you do not match the intermediate frequency furnace
- Q:How do you prevent graphite crucibles from thermal shock during use?
- To prevent graphite crucibles from thermal shock during use, it is important to preheat them gradually before exposure to high temperatures. This can be done by placing the crucible inside the furnace and slowly increasing the temperature over a period of time. Additionally, it is crucial to avoid sudden temperature changes, such as placing a hot crucible directly on a cold surface or immersing it in cold water immediately after use. By following these precautions, the risk of thermal shock and potential damage to the crucible can be minimized.
- Q:How do you determine the appropriate crucible handle for a specific application?
- Determining the appropriate crucible handle for a specific application involves considering several factors. Firstly, you need to assess the material being used in the crucible. Different materials have different properties, such as weight, melting point, and corrosiveness, which will impact the type of handle needed. Next, you need to evaluate the size and weight of the crucible. Larger crucibles with heavier loads may require sturdier handles that can support the weight without compromising safety. The handle should be able to provide a secure grip to prevent accidental dropping or spillage. Another important consideration is the temperature at which the crucible will be used. High-temperature applications require handles that are heat-resistant and can withstand the extreme temperatures without transferring heat to the operator's hands. Handles made of heat-resistant materials like ceramic or specialized alloys can be suitable for such applications. The ergonomics and comfort of the handle should also be taken into account. A handle that allows for a comfortable grip and easy maneuverability can enhance the user's experience and reduce the risk of accidents or injuries. Lastly, it is crucial to follow any specific guidelines or regulations provided by the manufacturer or industry standards. Some applications may have specific requirements for handle materials, designs, or attachment methods to ensure optimal safety and performance. By considering these factors and conducting thorough research, you can determine the appropriate crucible handle that meets the requirements of your specific application, ensuring safe and efficient use of the crucible.
- Q:How do you prevent graphite crucibles from sticking to the melted material?
- There are several steps that can be taken to avoid the graphite crucibles from sticking to the melted material: 1. Applying a release agent: Prior to placing the material in the crucible, it is possible to apply a thin layer of a release agent to the inside surface of the crucible. This can be done either by using a brush or a spray. The purpose of the release agent is to create a barrier between the crucible and the melted material, thus preventing them from sticking together. 2. Preheating the crucible: By preheating the graphite crucible before adding the material, the chances of sticking can be reduced. Heating the crucible to a temperature slightly higher than the melting point of the material can establish a thermal barrier that prevents the material from adhering to the crucible. 3. Incorporating flux: In certain situations, the addition of flux can help prevent sticking. Flux is a chemical compound that lowers the melting point of the material and facilitates its flow. It can also function as a protective barrier between the crucible and the melted material, preventing them from sticking together. 4. Controlling the temperature: Maintaining the appropriate temperature throughout the melting process is crucial. If the temperature is too high, the material can become more reactive with the crucible, leading to sticking. Conversely, if the temperature is too low, the material may not fully melt, increasing the chances of sticking. Adhering to the recommended temperature range for the specific material being melted can help avoid sticking. 5. Properly cleaning and maintaining the crucible: It is vital to regularly clean the crucible after each use in order to prevent buildup or contamination that can result in sticking. Utilizing appropriate cleaning methods to remove any residual material or debris from the crucible is important. Additionally, inspecting the crucible for any signs of wear or damage and replacing it when necessary can help prevent sticking. By following these preventive measures, the risk of graphite crucibles sticking to the melted material can be significantly minimized, ensuring a smooth and efficient melting process.
- Q:How do you prevent graphite crucibles from reacting with the melted material?
- There are several measures that can be taken to prevent the reaction between graphite crucibles and melted material: 1. Prior to use, it is advisable to pre-treat the graphite crucible by heating it in an inert atmosphere like argon or nitrogen. This pre-treatment forms a protective layer on the crucible's surface, preventing any reaction with the melted material. 2. Applying a protective coating on the inner surface of the crucible can also prevent chemical reactions. Materials such as boron nitride, zirconium oxide, or alumina can be used for this purpose. 3. Depending on the reactivity of the melted material with carbon or graphite, it may be more appropriate to use a crucible made of refractory metals like tungsten or molybdenum. 4. The atmosphere in which the crucible and melted material are exposed plays a crucial role in preventing reactions. Using an inert or reducing atmosphere such as argon or hydrogen can minimize reactions and ensure the crucible's stability. 5. Care should be taken to avoid exposing the crucible to excessively high temperatures, as this can accelerate reactions between the crucible material and the melted material. Maintaining temperature within the recommended range is important to prevent such reactions. By implementing these preventive measures, the risk of graphite crucibles reacting with melted material can be significantly reduced, thereby ensuring the integrity of the crucible and the quality of the process or experiment.
- Q:Electromagnetic induction heating device into the copper coil heater, to use more power consumption to reach the melting temperature of iron?
- Ten on the theory but can't stand hot kilowatts, ah
- Q:How do you determine the appropriate crucible lid for a graphite crucible?
- In order to determine the appropriate lid for your graphite crucible, there are several factors that should be considered: 1. Consider the size and shape of the crucible. It is important for the lid to fit securely onto the crucible, creating a tight seal. Take measurements of the diameter and height of the crucible and select a lid that matches these dimensions. 2. Ensure that the lid material is compatible with the high temperatures and chemicals used in the crucible. Graphite crucibles are commonly used for applications involving high temperatures, so the lid should be able to withstand extreme heat without warping or cracking. 3. Take into account any ventilation needs that may be required for your specific process. Some processes release gases or vapors during heating, so it may be necessary to choose a lid with a vent or hole to allow for proper ventilation. This will help prevent pressure buildup and potential damage to the crucible. 4. Consider any application-specific requirements that are unique to your process. For example, if you need to observe the contents of the crucible during heating, you may want to select a lid with a transparent window or a removable cover. 5. It is also important to check the recommendations provided by the crucible manufacturer. They may offer specific lid options that are designed to work well with their crucibles. By taking these factors into consideration, you will be able to determine the most suitable crucible lid for your graphite crucible. This will ensure optimal performance and safety during your heating processes.
- Q:How does the thermal shock resistance of graphite affect the performance of a crucible?
- The thermal shock resistance of graphite greatly affects the performance of a crucible. Graphite is known for its excellent thermal conductivity and high melting point, making it an ideal material for crucibles used in high-temperature applications. However, graphite's thermal shock resistance is relatively low compared to other materials. Thermal shock resistance refers to a material's ability to withstand sudden and extreme temperature changes without cracking or breaking. In the case of a crucible, it is subjected to rapid heating and cooling cycles during various processes such as melting, casting, or chemical reactions. These temperature changes can cause stress on the material, leading to thermal shock failure if the crucible is not adequately resistant. When a crucible has low thermal shock resistance, it is more prone to cracking or fracturing when exposed to rapid temperature changes. This can result in leakage of molten materials, loss of containment, or contamination of the process. Additionally, the structural integrity of the crucible may be compromised, affecting its overall performance and longevity. On the other hand, a crucible with high thermal shock resistance can withstand rapid temperature changes without significant damage. It can maintain its structural integrity, ensuring the containment of molten materials throughout the process. This increases the reliability and efficiency of the crucible, allowing for consistent and uninterrupted operations. Therefore, the thermal shock resistance of graphite directly influences the performance of a crucible. Crucibles with higher thermal shock resistance are more reliable, durable, and efficient, ensuring the successful execution of high-temperature processes without the risk of premature failure or contamination.
- Q:What are the different methods of preventing cracks in a graphite crucible?
- There are several methods to prevent cracks in a graphite crucible, including preheating the crucible before use, avoiding rapid temperature changes, using a protective coating, and ensuring proper handling and storage of the crucible.
- Q:Can a graphite crucible be used for melting non-metallic materials?
- Yes, a graphite crucible can be used for melting non-metallic materials. Graphite has a high melting point and excellent thermal conductivity, making it suitable for melting various non-metallic substances such as glass, ceramics, and certain minerals.
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Refractory Crucibles Sic Crucible For Brass/Aluminum
- 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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