$Refractory Crucibles Sic Crucible For Melting Copper System 1$
$Refractory Crucibles Sic Crucible For Melting Copper System 2$
$Refractory Crucibles Sic Crucible For Melting Copper System 3$
$Refractory Crucibles Sic Crucible For Melting Copper System 4$
$Refractory Crucibles Sic Crucible For Melting Copper System 5$
$Refractory Crucibles Sic Crucible For Melting Copper System 6$

$Refractory Crucibles Sic Crucible For Melting Copper$

$Refractory Crucibles Sic Crucible For Melting Copper System 1$

$Refractory Crucibles Sic Crucible For Melting Copper System 2$

$Refractory Crucibles Sic Crucible For Melting Copper System 3$

$Refractory Crucibles Sic Crucible For Melting Copper System 4$

$Refractory Crucibles Sic Crucible For Melting Copper System 5$

$Refractory Crucibles Sic Crucible For Melting Copper System 6$

Refractory Crucibles Sic Crucible For Melting Copper

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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

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.

$Refractory Crucibles Sic Crucible For Melting Copper$

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%

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.

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: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:Can a graphite crucible be used for laboratory applications?: Yes, a graphite crucible can be used for laboratory applications. Graphite has excellent thermal conductivity and resistance to high temperatures, making it suitable for various laboratory processes such as melting, heating, and chemical reactions. It is commonly used in applications like sample preparation, metal analysis, and organic synthesis in laboratories.

Q:How do you prevent thermal shock in graphite crucibles?: To prevent thermal shock in graphite crucibles, there are several key steps that can be taken: 1. Preheating: Before using a graphite crucible, it is important to preheat it gradually. This can be done by placing the crucible in a furnace or kiln at a low temperature and slowly increasing the temperature over a period of time. This ensures that the crucible is uniformly heated and minimizes the risk of sudden temperature changes. 2. Avoiding rapid temperature changes: Graphite crucibles should be handled with care to prevent sudden temperature changes. They should not be exposed to extreme heat or cold, as this can cause thermal shock. Similarly, they should not be placed directly onto a hot surface or immersed in cold water immediately after use. 3. Proper handling and storage: Graphite crucibles should be stored in a dry and controlled environment to prevent moisture absorption, which can lead to thermal shock. Care should be taken when handling crucibles to avoid dropping or banging them against hard surfaces, as this can also cause thermal shock. 4. Adequate cooling: After use, graphite crucibles should be allowed to cool naturally and slowly. Placing a hot crucible in a cool environment or exposing it to a sudden temperature change can result in thermal shock. It is recommended to place the crucible on a non-conductive surface and allow it to cool at room temperature before further handling. 5. Regular inspection: Regularly inspecting graphite crucibles for any signs of damage or wear is crucial. Any cracks, chips, or other abnormalities should be addressed immediately, as they can weaken the crucible and increase the risk of thermal shock. If any damage is detected, it is advisable to replace the crucible to ensure its integrity during future use. By following these preventive measures, thermal shock in graphite crucibles can be minimized, resulting in improved durability and performance.

Q:How do you prevent oxidation of the graphite crucible during use?: To prevent oxidation of the graphite crucible during use, there are several steps you can take: 1. Pre-condition the crucible: Before using the graphite crucible, it is important to pre-condition it by heating it gradually. This process helps remove any residual binders or impurities on the surface of the crucible, making it less prone to oxidation. 2. Apply a protective coating: Applying a protective coating to the graphite crucible can help prevent oxidation. There are various coatings available, such as boron nitride or zirconium oxide, which create a barrier between the crucible and the atmosphere, thus reducing the likelihood of oxidation. 3. Control the atmosphere: The atmosphere in which the crucible is used plays a crucial role in preventing oxidation. If possible, use a controlled atmosphere such as vacuum or inert gas (e.g., argon or nitrogen) during the heating process. This helps minimize the presence of oxygen, which can lead to oxidation. 4. Avoid rapid temperature changes: Rapid temperature changes can cause thermal shock, which can lead to cracks and increased susceptibility to oxidation. To prevent this, ensure a gradual and controlled heating and cooling process. 5. Clean the crucible after use: After each use, it is important to clean the graphite crucible to remove any residues or contaminants that may promote oxidation. Use a suitable cleaning agent and gently scrub the surface to ensure its cleanliness. By following these preventative measures, you can significantly reduce the oxidation of the graphite crucible during use, prolonging its lifespan and maintaining its effectiveness.

Q:How do you use crucibles to process copper?: How to play lining, you can check the relevant information on Baidu. The working principle of intermediate frequency furnace is induction heating, the inductor is energized, producing dense magnetic lines, cutting the metal in the crucible, generating an electric furnace, and the metal itself generates heat to melt the metal. The power frequency furnace can also pull copper wires.

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:What is the porcelain crucible with a small hole under it?: The main material of the graphite crucible is crystalline natural graphite. Therefore, it keeps all kinds of physical and chemical characteristics of natural right ink. That is: good thermal conductivity and high temperature resistance, in the process of high temperature use, the coefficient of thermal expansion is small, and has a certain strain resistance to hot and cold. The corrosion resistance of acid and alkaline solution is strong, and it has good chemical stability.

Q:Can a graphite crucible be used for melting curium?: No, a graphite crucible cannot be used for melting curium. Curium is a radioactive element and requires specialized equipment, such as high-temperature refractory materials, to handle and contain its unique properties.

Q:What are the different methods of protecting the surface of a graphite crucible?: There are several methods of protecting the surface of a graphite crucible to ensure its longevity and prevent any contamination or damage. Here are some of the different methods commonly used: 1. Coating: Applying a protective coating to the surface of the graphite crucible is one of the most popular methods. Different types of coatings can be used, such as boron nitride, silicon carbide, or refractory metals like tungsten or molybdenum. These coatings act as a barrier, preventing the crucible from reacting with the materials being melted or causing contamination. 2. Glazing: Glazing involves applying a layer of glass or ceramic material to the surface of the crucible. This creates a protective barrier that helps reduce chemical reactions and corrosion. Glazing is commonly used for applications involving aggressive chemicals or high-temperature environments. 3. Oxidation: Oxidizing the surface of the graphite crucible can provide protection against certain reactive materials. This process involves exposing the crucible to high temperatures in an oxygen-rich environment, forming a thin layer of oxidized graphite on the surface. This layer acts as a barrier to prevent further oxidation or chemical reactions. 4. Preheating: Preheating the graphite crucible before use can help to eliminate any moisture or impurities present on the surface. It also helps to stabilize the crucible, reducing the risk of thermal shock and cracking. 5. Proper handling and storage: Another important method of protecting the graphite crucible is through proper handling and storage. Avoiding rough handling, excessive impacts, or dropping the crucible can prevent physical damage. Proper storage in a clean and dry environment is also crucial to prevent contamination or deterioration. Overall, utilizing a combination of these methods can greatly enhance the lifespan and performance of a graphite crucible, ensuring it remains in optimal condition for various applications in industries such as metallurgy, foundries, and laboratories.

Q:What is the white product in the crucible?: Reacts with oxygen in the air to produce a white Zinc Oxide, producing white smoke, which does not melt into brass liquid, and the remaining copper in the crucible is also Zinc Oxide, so the phenomenon that you describe

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