10kg Graphite Crucible - High Quality Graphite Products

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 50 Sets set

Supply Capability:: 5000 Sets per Month set/month

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Detailed Product Description

high purity graphite block, has good mechanical and chemical behaviours

High Purity Graphite is suitable for the graphite( anode, inner grid, outside grid,reverberation pole, and excitation) which is applied in all kinds of small size silver rectifier, and for the graphite(anode, grid) which is appplied in electronics tubes. It is used in monocrystal furnace as grapite heater, heating preservation cover,crucibles etc. The specification that our company mainly produces is as follows: Dia.40mm---275mm; height 100---150 and 2*120, 200*200, 200*320(Cube); Thickness 50---12. The special request can be customized.

Q: Can graphite crucibles be used for carbon nanotube synthesis?: Yes, graphite crucibles can be used for carbon nanotube synthesis. Graphite is a suitable material for this purpose due to its high melting point and chemical stability at high temperatures. When carbon nanotubes are synthesized, a carbon source is typically heated to a high temperature, and graphite crucibles can withstand these extreme conditions without reacting or contaminating the nanotubes. Additionally, graphite crucibles have good thermal conductivity, which helps to maintain a uniform temperature during the synthesis process. Therefore, graphite crucibles are commonly used in laboratories and industries for the production of carbon nanotubes.

Q: Can graphite crucibles be used for both melting and casting?: Yes, graphite crucibles can be used for both melting and casting. Graphite is known for its excellent heat resistance and high melting point, which makes it an ideal material for containing molten metals during the melting process. Additionally, graphite crucibles have good thermal conductivity, allowing for efficient heat transfer and uniform heating of the molten metal. Once the metal is melted, the graphite crucible can also be used for casting. The molten metal can be poured directly from the crucible into a mold, allowing for the creation of various shapes and forms. Graphite crucibles are typically durable and can withstand repeated heating and cooling cycles, making them suitable for both melting and casting processes. However, it is important to note that graphite crucibles may not be suitable for all types of metals. Some reactive or corrosive metals may react with graphite at high temperatures, leading to contamination of the molten metal. In such cases, alternative crucible materials like ceramic or refractory metals may be more appropriate.

Q: What are the properties of diamond, graphite and charcoal? What is the relationship between the nature of the material and its use?: Charcoal has adsorption, can be a large number of gas or dye particles adsorbed on its surface. Diamond hardness, high temperature can be used as drilling machine bit; can be glass cutter;

Q: Rotary kiln dust removal, zinc coated sand and Zinc Oxide Technology: The use of Nianzi extracted from zinc in zinc,

Q: What are the different methods of preventing cracks in a graphite crucible?: To prevent cracks in a graphite crucible, there are several effective methods that can be utilized: 1. Employing preheating: Prior to use, it is beneficial to preheat the graphite crucible. This can be achieved by gradually increasing the temperature to the desired operating level. This gradual heating allows for uniform expansion of the graphite, thus reducing the possibility of thermal shock and subsequent cracking. 2. Implementing gradual cooling: After use, it is crucial to cool the crucible in a gradual manner. Abrupt changes in temperature can result in thermal stress and ultimately lead to cracks. By allowing the crucible to cool slowly, the risk of such stress is minimized. 3. Avoiding sudden temperature fluctuations: It is imperative to utilize the graphite crucible in a controlled manner, avoiding rapid temperature changes. Swift heating or cooling can induce thermal shock and increase the likelihood of cracking. Thus, maintaining a consistent temperature during both the heating and cooling processes is of utmost importance. 4. Exercising proper handling techniques: The careful handling of the crucible is vital in the prevention of cracks. Any instances of dropping or forcefully impacting the crucible against hard surfaces should be avoided, as this can result in physical damage and weaken the graphite structure. 5. Applying protective coatings: An additional layer of insulation and prevention of direct contact between the molten material and the graphite can be achieved by employing a protective coating on the inner surface of the crucible. This coating serves to reduce chemical reactions and thermal stress, thereby diminishing the risk of cracks. 6. Engaging in regular maintenance and inspection: Consistently inspecting the crucible for any indications of wear, damage, or cracks is indispensable. Identifying potential issues at an early stage can prevent further harm and ensure the longevity of the crucible. Through the implementation of these methods, the risk of cracks in a graphite crucible can be minimized. This ensures the crucible's durability and effectiveness in various high-temperature applications.

Q: How do you use crucibles to process copper?: The medium frequency furnace crucible is made of quartz sand lining material, and the crucible has a long service life, usually in three months. The power frequency furnace is also sintered with quartz sand.

Q: Can a graphite crucible be used for melting berkelium?: No, a graphite crucible cannot be used for melting berkelium. Graphite crucibles are commonly used for melting metals with lower melting points, such as iron, aluminum, or copper. However, berkelium is a highly radioactive and rare element with a melting point of around 986 degrees Celsius. To handle and melt berkelium, specialized equipment and materials that can withstand high temperatures and the corrosive nature of the element are required. These materials are typically made from refractory metals like tungsten or tantalum, which have higher melting points and better resistance to corrosion. Therefore, it is not recommended to use a graphite crucible for melting berkelium due to its unsuitability for the extreme conditions associated with this element.

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: Are graphite crucibles suitable for use in a vacuum environment?: Yes, graphite crucibles are suitable for use in a vacuum environment. Graphite has a high melting point and excellent thermal conductivity, making it an ideal material for containing and heating materials in a vacuum. Additionally, graphite is chemically inert and has low outgassing properties, which ensures minimal contamination or reaction with the vacuum environment.

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).

Our products are sold all over the country, and exported to America, Germany, Spain, India, Japan and Korea. Besides, we have strict management and advanced production technology. We promise we will win more clients and a larger market with honest commercial credit, high quality of products, competitive price and good service.

1. Manufacturer Overview

Location	Inner Mongolia,China (Mainland)
Year Established	2006
Annual Output Value	US$2.5 Million - US$5 Million
Main Markets	7.14% North America 7.14% South America 7.14% Eastern Europe 7.14% Southeast Asia 7.14% Africa 7.14% Oceania 7.14% Mid East 7.14% Eastern Asia 7.14% Western Europe 7.14% Central America 7.14% Northern Europe 7.14% Southern Europe 7.14% South Asia 7.14% Domestic Market
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2. Manufacturer Certificates

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3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Xingang,Tianjin
Export Percentage	31% - 40%
No.of Employees in Trade Department	21-50 People
Language Spoken:	English, Chinese
b) Factory Information
Factory Size:	1,000-3,000 square meters
No. of Production Lines	7
Contract Manufacturing	1,000-3,000 square meters
Product Price Range	Low and/or Average