SiC Crucibles,SIC Graphite Crucible, Graphite Crucible 2015

SiC Crucibles,SIC Graphite Crucible, Graphite Crucible 2015 System 1

SiC Crucibles,SIC Graphite Crucible, Graphite Crucible 2015 System 2

SiC Crucibles,SIC Graphite Crucible, Graphite Crucible 2015 System 3

SiC Crucibles,SIC Graphite Crucible, Graphite Crucible 2015

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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

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

SiC Crucibles,SIC Graphite Crucible, Graphite Crucible 2015

Graphite crucible can withstand the high temperature, and has good resistance to chemical erosions and thermal shock. Especially graphite crucible is ideal for the melting of aluminum, copper and etc.

Bulk Density	g/cc	1.70-1.88
Specific Resistance	μΩ.m	6.0-15.0
Compressive Strength	MPa	30-80
Bending Strength	MPa	20-45
Shore hardness		30-70
C.T.E.(100-600°C)	x10-6 /°C	2.5-5.5
Ash	%	0.01-0.2
Maximum Grain Size	mm	0.044-0

Q:Cast iron into a casting. What is the state of the matter, change, sublimation?: In metallurgy, casting, machinery, chemical and other industrial sectors, it is widely used in smelting of alloy tool steel and smelting of nonferrous metals and their alloys. And has better technical and economic results.

Q:How is a graphite crucible used in the production of carbon composites?: The production of carbon composites relies heavily on the utilization of a graphite crucible. These composites are composed of carbon fibers embedded in a matrix material, typically a resin or a metal. During the production process, the graphite crucible serves as both a container and a mold for the molten matrix material. Its composition of graphite is specifically chosen due to its high melting point and exceptional thermal conductivity. This allows it to endure the extreme temperatures required for melting the matrix material, which can range anywhere from several hundred to several thousand degrees Celsius, depending on the specific composite being created. Initially, the carbon fibers are prepared by aligning them in a specific manner to achieve the desired mechanical properties of the final composite. These fibers are then inserted into the graphite crucible, taking on a predetermined shape or structure. Following this, the matrix material, such as a resin or metal, is heated until it reaches its melting point and is subsequently poured into the graphite crucible. By virtue of its superb heat conducting abilities, the crucible aids in distributing heat uniformly throughout the molten matrix material. This ensures consistency and prevents the formation of any hotspots or uneven curing. As the molten matrix material cools down, it solidifies around the carbon fibers, completely encapsulating them. This process, known as impregnation or infiltration, involves the matrix material filling the gaps between the carbon fibers, effectively binding them together and forming a solid composite structure. The graphite crucible plays a vital role in maintaining the desired shape and structure of the composite throughout this process. After the impregnation process is complete, the composite is allowed to cool and cure, resulting in a rigid and durable material with exceptional mechanical properties. Subsequently, the crucible is removed, leaving behind the carbon composite in the desired shape. In conclusion, the use of a graphite crucible is indispensable in the production of carbon composites. It provides a stable and controlled environment for the impregnation process, ensuring uniformity and consistency in the final composite product.

Q:Are there any specific storage requirements for graphite crucibles?: Yes, graphite crucibles have specific storage requirements. They should be stored in a dry and cool environment to prevent oxidation and damage. It is essential to keep them away from moisture, direct sunlight, and extreme temperature fluctuations. Additionally, they should be stored in a clean area to avoid contamination from dust or other substances.

Q:What's the pot in the lab that puts in the oven?: There are many kinds of crucibles, such as cast iron crucibles, stainless steel crucibles, clay crucibles, graphite crucibles, silicon carbide and corundum crucibles.

Q:What are the different methods of preventing graphite crucible breakage?: There are several methods that can be employed to prevent graphite crucible breakage. 1. Proper handling and storage: One of the most effective ways to prevent graphite crucible breakage is by ensuring proper handling and storage. Crucibles should be handled with care, avoiding any rough or sudden movements that may cause impact or stress on the crucible. Additionally, crucibles should be stored in a safe and secure location, away from any potential hazards or sources of damage. 2. Controlled heating and cooling: Graphite crucibles are subjected to high temperatures during the melting process. To prevent breakage, it is important to follow proper heating and cooling procedures. Gradual heating and controlled cooling can help minimize thermal shock and stress on the crucible, reducing the risk of breakage. 3. Preheating: Preheating the graphite crucible before use can help prevent breakage. This process involves gradually heating the crucible to a specific temperature range prior to adding the molten material. Preheating helps to reduce the temperature differential between the crucible and the molten material, minimizing the risk of thermal shock and potential breakage. 4. Use of protective coatings: Applying a protective coating to the graphite crucible can provide an added layer of protection against breakage. Coatings such as boron nitride or alumina can help improve thermal shock resistance and reduce the likelihood of crucible failure. 5. Regular inspection and maintenance: Regularly inspecting the graphite crucible for any signs of damage or wear is crucial in preventing breakage. Any cracks, chips, or other defects should be addressed immediately to avoid further deterioration. Additionally, routine maintenance, such as cleaning and removing any build-up or impurities, can help prolong the life of the crucible and prevent breakage. By implementing these methods, individuals or industries can significantly reduce the risk of graphite crucible breakage, ensuring their longevity and performance in various high-temperature applications.

Q:Can graphite crucibles be used for carbon and graphite production?: Yes, graphite crucibles can be used for carbon and graphite production. Graphite crucibles are specifically designed to withstand high temperatures and are commonly used in various industries, including carbon and graphite production. They provide a stable and reliable container for melting and refining carbon and graphite materials.

Q:Can a graphite crucible be used for aluminum melting?: Aluminum melting is possible using a graphite crucible. Graphite crucibles are widely utilized due to their high melting point, thermal conductivity, and resistance to chemical attack. They can endure the elevated temperatures needed for aluminum melting, typically ranging from 660°C to 700°C (1220°F to 1290°F). Additionally, graphite crucibles exhibit excellent thermal shock resistance, enabling them to withstand the rapid temperature fluctuations inherent in the aluminum melting process. However, it is crucial to note that graphite crucibles may oxidize when exposed to high temperatures, resulting in the formation of a graphite oxide layer on the crucible's surface. This oxide layer can impact the purity of the melted aluminum. Thus, it is recommended to employ a new or thoroughly cleaned graphite crucible to minimize the potential for contamination.

Q:Can graphite crucibles be used for heat treatment processes?: Yes, graphite crucibles can be used for heat treatment processes. Graphite has excellent thermal conductivity and high melting point, making it suitable for withstanding extremely high temperatures required for heat treatment. Additionally, graphite crucibles have good resistance to chemical corrosion, which is important when dealing with reactive or corrosive substances during heat treatment.

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. One common method is to apply a protective coating such as boron nitride or silicon carbide to create a barrier between the crucible and the materials being melted. Another approach is to use a sacrificial lining made of materials like clay or refractory cement, which can be replaced periodically to protect the crucible. Additionally, using a crucible cover or lid can help prevent contamination and oxidation of the graphite surface. Regular cleaning and maintenance of the crucible is also crucial to prolong its lifespan and protect the surface from damage.

Q:Can graphite crucibles be used for electron beam melting processes?: Graphite crucibles are indeed capable of being used in electron beam melting processes. They possess exceptional thermal conductivity, a high melting point, and commendable resistance to chemical attack, rendering them appropriate for high-temperature applications like electron beam melting. The remarkable thermal conductivity of graphite aids in the effective transfer of heat, thereby enabling uniform heating and melting of the material. Moreover, graphite crucibles exhibit excellent dimensional stability, a vital factor in ensuring precise control over the melting process. Consequently, graphite crucibles are widely favored in electron beam melting processes due to their advantageous attributes.

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