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:What are the uses of graphite crucibles?: Used in automotive, electronic and new material industries, graphite crucibles are hot containers for melting and containing non-ferrous metals and new materials.

Q:How does the gas permeability of graphite affect crucible performance?: The performance of a crucible heavily relies on the gas permeability of graphite. Graphite possesses exceptional gas permeability, which means it allows gases to pass through it effortlessly. This characteristic proves advantageous in a crucible because it permits the release of gases that may be produced during high-temperature procedures, like melting or heat treatment. When a crucible is exposed to elevated temperatures, it may undergo several chemical reactions that lead to the generation of gases, such as carbon dioxide or carbon monoxide. If these gases become trapped inside the crucible, they can create a buildup of pressure, resulting in cracks or even explosions. However, thanks to the gas permeability of graphite, these gases can escape through the walls of the crucible, averting any potential damage. Furthermore, the gas permeability of graphite also aids in eliminating impurities or volatile substances from the crucible. During certain processes, impurities or volatile materials might be present in the material being melted or treated. If these substances are not allowed to escape, they can contaminate the final product or compromise the quality of the procedure. The gas permeability of graphite facilitates the effortless removal of these impurities, ensuring a cleaner and more efficient process. In conclusion, the gas permeability of graphite is crucial for the performance of a crucible as it enables the secure release of gases produced during high-temperature procedures and facilitates the removal of impurities. By permitting gases to escape and preventing pressure buildup, graphite crucibles can maintain their structural integrity and durability. Additionally, the gas permeability of graphite supports cleaner procedures and guarantees the quality of the end product.

Q:Can a graphite crucible be used for iron melting?: No, a graphite crucible cannot be used for iron melting. Iron has a higher melting point than graphite, and therefore requires a crucible made of a material with a higher melting point, such as clay graphite or silicon carbide. Using a graphite crucible for iron melting would cause the crucible to melt or degrade, leading to contamination of the molten iron and potential damage to the furnace or equipment. It is crucial to choose the appropriate crucible material based on the melting point of the metal being melted to ensure proper and safe melting operations.

Q:Can graphite crucibles be used for melting refractory metals?: Yes, graphite crucibles can be used for melting refractory metals. Graphite crucibles have a high melting point and excellent resistance to heat, making them suitable for use in high-temperature applications such as melting refractory metals. Additionally, graphite crucibles offer good thermal conductivity, chemical inertness, and low thermal expansion, which makes them an ideal choice for melting and casting refractory metals.

Q:What is the maximum temperature that a graphite crucible can withstand?: The maximum temperature that a graphite crucible can withstand can vary depending on the specific type and quality of the graphite material used. Generally, graphite crucibles are designed to withstand extremely high temperatures, typically ranging from 2000 to 3000 degrees Celsius (3632 to 5432 degrees Fahrenheit). However, it is important to note that prolonged exposure to temperatures at the upper end of this range can potentially cause damage or degradation to the graphite crucible over time. Therefore, it is recommended to carefully follow the manufacturer's guidelines and specifications to ensure the crucible's maximum temperature limit is not exceeded.

Q:Who can give a detailed description of the degree of volatility of graphite at various temperatures?: The melting point of graphite is 3850 + 50 DEG C, and the boiling point is 4250 DEG C. Even though the arc is burnt by ultra high temperature, the weight loss is very small, and the coefficient of thermal expansion is very small

Q:How do you prevent graphite crucibles from cracking due to thermal stress?: To prevent graphite crucibles from cracking due to thermal stress, there are several measures that can be implemented: 1. Preheating: Before using a new graphite crucible, it is important to preheat it gradually. This helps to eliminate any moisture or volatile components that may be present in the crucible, reducing the risk of thermal shock. 2. Avoid sudden temperature changes: Rapid and extreme temperature changes can cause thermal stress, leading to cracking. To prevent this, it is essential to heat and cool the crucible gradually. A gradual heating and cooling process allows the crucible to expand and contract uniformly, reducing the risk of cracking. 3. Use proper heating techniques: When heating the crucible, it is important to use appropriate heating techniques such as applying a uniform heat source. Uneven heating can lead to localized expansion and contraction, increasing the chances of cracking. 4. Maintain proper temperature limits: Each type of graphite crucible has a specific temperature limit. Exceeding this limit can result in thermal stress and eventual cracking. It is crucial to operate within the recommended temperature range to prevent damage. 5. Handle with care: Graphite crucibles are delicate and can be easily damaged if mishandled. To prevent cracking, it is important to handle them with care, avoiding any sudden impacts or rough handling. 6. Regular inspection: Regularly inspecting the crucibles for any signs of wear, cracks, or damage is vital. If any issues are identified, it is best to replace the crucible immediately to prevent any further damage or potential accidents. By following these preventive measures, the risk of thermal stress and cracking in graphite crucibles can be significantly reduced, ensuring their long-lasting performance.

Q:How to calculate the loss of aluminum slag melting?: Look at the size of aluminum slag, big saw recovery rate is high, small saw fine chip is low.

Q:Can graphite crucibles be used for metal powder atomization?: Yes, graphite crucibles can be used for metal powder atomization. Graphite crucibles are commonly used in metallurgical processes due to their high thermal conductivity, chemical inertness, and resistance to high temperatures. In metal powder atomization, the crucible is heated to a high temperature, and the metal feedstock is melted and then atomized into fine powder particles using a gas or water jet. The graphite crucible helps to maintain a stable temperature during the atomization process and allows for efficient heat transfer, resulting in consistent and high-quality metal powder production. Additionally, graphite crucibles can withstand the corrosive nature of molten metals, making them suitable for various metal powder atomization applications.

Q:Can graphite crucibles be used for carbon fiber production?: Yes, graphite crucibles can be used for carbon fiber production. Graphite crucibles are able to withstand high temperatures and are chemically inert, making them suitable for the production process of carbon fibers.

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
Company Certifications

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

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