Clay Graphite Foundry Crucible - Jewellery Induction Casting Crucible Galloni CG40(500), Graphite Melting Crucible

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 5 Pieces pc

Supply Capability:: 10000 Pieces per Month pc/month

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Detailed Product Description

Jewellery Casting crucible CG-40 induction casting machine. Crucible capacity 500 G

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Q: Can graphite crucibles be used for metal powder atomization?: Yes, graphite crucibles can be used for metal powder atomization. Graphite crucibles are often preferred for their high melting point, excellent thermal conductivity, and chemical resistance. These properties make them suitable for the high-temperature process of metal powder atomization, where fine metal powders are produced by rapidly cooling molten metal. Additionally, graphite crucibles provide good control over the atomization process, making them a popular choice in industries such as aerospace, automotive, and additive manufacturing.

Q: How long can a graphite crucible last for a long time?: High temperature resistance, graphite melting point is very high, in the vacuum of 3850 degrees, sublimation at low pressure, sublimation temperature of 2200 degrees, and the general material is different

Q: Can graphite crucibles be used for carbon nanotube synthesis?: Graphite crucibles are capable of being utilized in the synthesis of carbon nanotubes. Due to its high melting point and chemical stability at elevated temperatures, graphite serves as a suitable material for this purpose. In the process of synthesizing carbon nanotubes, a carbon source is commonly subjected to intense heat, and graphite crucibles have the ability to endure such extreme conditions without undergoing reactions or contaminating the nanotubes. Moreover, graphite crucibles possess efficient thermal conductivity, which aids in maintaining a consistent temperature throughout the synthesis procedure. Consequently, graphite crucibles are extensively employed in laboratories and industries for the fabrication of carbon nanotubes.

Q: Is it possible to customize the shape or design of a graphite crucible?: Yes, it is possible to customize the shape or design of a graphite crucible. Graphite is a highly versatile material that can be easily manipulated and molded into various shapes and sizes. This allows for customization to meet specific requirements or applications, such as different capacities, dimensions, or specialized designs.

Q: Can a graphite crucible be used for melting neptunium?: It is not possible to use a graphite crucible for melting neptunium due to its highly radioactive and pyrophoric nature, causing spontaneous ignition in the air. Graphite is unsuitable for containing such reactive and hazardous substances. To safely melt neptunium, a specialized crucible made of a more resistant material like tantalum or platinum is necessary. These materials have a higher melting point and are better equipped to withstand the extreme conditions associated with neptunium.

Q: How do you prevent graphite crucibles from cracking during cooling?: To prevent graphite crucibles from cracking during cooling, there are several measures that can be taken: 1. Gradual cooling: Graphite crucibles should be cooled slowly and gradually to prevent thermal shock. Rapid cooling can cause stress and lead to cracks. The crucible can be placed in a designated cooling area or inside an oven with controlled cooling rates. 2. Thermal insulation: Using thermal insulation materials such as ceramic fibers or refractory bricks can help regulate the cooling rate and minimize temperature gradients. These materials act as a buffer, preventing sudden temperature changes that can cause cracking. 3. Preheating and annealing: Before using a new graphite crucible, it is recommended to preheat it gradually to eliminate any moisture or volatile impurities. Additionally, annealing the crucible at a low temperature can help relieve internal stress and improve its resistance to cracking during subsequent usage. 4. Avoid direct contact with water: Graphite crucibles should not be exposed to direct contact with water or other coolants immediately after use or during the cooling process. Water can cause rapid cooling and thermal shock, leading to cracks. Instead, it is advisable to let the crucible cool naturally in a dry environment. 5. Proper handling and storage: Careful handling of graphite crucibles is crucial to prevent accidental impacts or drops that can cause cracks. When not in use, the crucibles should be stored in a dry and temperature-controlled environment to avoid exposure to excessive moisture or extreme temperature changes that could compromise their structural integrity. By following these preventive measures, the risk of cracking during cooling can be significantly reduced, ensuring the longevity and reliability of graphite crucibles.

Q: Can a graphite crucible be used for ceramic or porcelain production?: No, a graphite crucible cannot be used for ceramic or porcelain production. Graphite crucibles are primarily used for melting and holding metals, while ceramic and porcelain production requires crucibles made of materials such as alumina or silica, which can withstand high temperatures and chemical reactions specific to ceramic and porcelain materials.

Q: How does the oxidation resistance of graphite affect the performance of a crucible?: The oxidation resistance of graphite plays a crucial role in determining the performance of a crucible. Graphite is a commonly used material for crucibles due to its high melting point, thermal conductivity, and chemical inertness. However, graphite is susceptible to oxidation at high temperatures, which can significantly impact the performance of a crucible. Oxidation occurs when oxygen reacts with the carbon atoms in graphite, forming carbon dioxide (CO2) or carbon monoxide (CO) gas. This process leads to the degradation of the graphite structure, causing it to lose its desirable properties. As a result, the crucible may become weak, brittle, and develop cracks or holes, compromising its ability to contain and withstand high temperatures and corrosive environments. The oxidation resistance of graphite is therefore crucial in maintaining the integrity and longevity of a crucible. Graphite materials with higher oxidation resistance can withstand exposure to oxygen at elevated temperatures without significant degradation. They can resist the formation of CO2 or CO gas and retain their structural integrity, ensuring the crucible remains intact and capable of withstanding repeated heating and cooling cycles. A crucible with good oxidation resistance will have a longer lifespan, as it can endure high-temperature applications without significant wear or damage. It will also maintain its thermal conductivity, which is essential for efficient heat transfer and uniform temperature distribution during processes such as melting, casting, or chemical reactions. Furthermore, the oxidation resistance of graphite in a crucible affects the purity of the substances being processed. Oxidation can lead to the formation of impurities, such as carbon dioxide or carbon monoxide, which can contaminate the materials being held in the crucible. This can be particularly problematic in industries such as metallurgy or semiconductor manufacturing, where high purity is essential for the quality of the final product. In conclusion, the oxidation resistance of graphite greatly influences the performance of a crucible. A crucible made from graphite with high oxidation resistance will have a longer lifespan, maintain its structural integrity, and ensure the purity of the materials being processed. Thus, careful consideration of the oxidation resistance when selecting a crucible material is essential for optimal performance and cost-effectiveness in various industrial applications.

Q: Is it possible to cast or mold materials using a graphite crucible?: Yes, it is possible to cast or mold materials using a graphite crucible. Graphite crucibles are commonly used in various industries, such as metal casting, jewelry making, and foundries, due to their high melting point and excellent thermal conductivity. Graphite crucibles can withstand extreme temperatures, making them ideal for melting and casting materials like metals and alloys. Graphite crucibles also have good chemical resistance, which prevents contamination of the molten material. Additionally, graphite crucibles have low thermal expansion and are non-wetting, meaning they do not adhere to the melted material, making it easier to remove the cast or molded material once it has solidified. Overall, graphite crucibles are widely used and highly effective for casting and molding various materials.

Q: Graphite and diamond are elemental elements made of carbon. Why are physical properties so different?: Purpose: GraphiteIn the metallurgical industry, used in the manufacture of graphite crucible and foundry mold surface coating and furnace lining and protective slag;Electrical industry, do electrodes, brushes, batteries, positive conductive materials, carbon tubes and so on;In the chemical industry, it is used as catalyst material for acid and alkali products and chemical fertilizer industry, as well as high temperature resistant and high pressure seals;In addition, it can also be used as lubricant, anticorrosive paint, pigment, pencil core, gunpowder, neutron reduction agent in atomic reactor and anti corrosion agent in aerospace industry

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1. Manufacturer Overview

Location	Guangdong,China (Mainland)
Year Established	2010
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Main Markets	North America South America Eastern Europe Southeast Asia Africa Oceania Mid East Eastern Asia Western Europe
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Export Percentage	61% - 70%
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Factory Size:	1,000-3,000 square meters
No. of Production Lines	Above 10
Contract Manufacturing	OEM Service Offered
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