Graphite Crucible with Lid

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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

graphite crucible is featured by fast heat conduction,long service life and low cost and the product finds good application

1.Garphite crucible can withstand the high temperature, an has good resistance to chemical erosions and thermal shock.

2.Graphite crucible is ideal for the melting of gold,silver,aluminum,copper and other metals and is also used as a tool for smelting jewelry.

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: Graphite products are mainly used in what industry?: Soft, black, gray, greasy, dirty paper. Hardness is 1~2, along the vertical direction with the increase of impurities, its hardness can be increased to 3~5. The specific gravity is 1.9 ~ 2.3. The specific surface area is concentrated in 1-20m2/g. Under the condition of oxygen isolation, the melting point is above 3000 DEG C, and it is one of the most refractory minerals. It conducts electricity and conducts heat.

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 is a form of carbon that has a high melting point and is often used for melting metals and alloys due to its excellent heat resistance. However, when it comes to ceramic or porcelain production, higher temperatures are required, usually exceeding the melting point of graphite. Additionally, graphite crucibles are porous and can absorb moisture, which can cause issues during the firing process of ceramics or porcelain. For these reasons, specialized crucibles made of materials like alumina or zirconia are typically used in ceramic or porcelain production to ensure proper firing and prevent contamination.

Q: What is the importance of carbon graphite as biological material?: As a conductive material of graphite in the electrical industry widely used as electrode, brush, carbon, carbon nanotubes, mercury rectifier cathode, graphite gasket, telephone parts, TV tube coating etc.. The most widely application of graphite electrode in smelting, alloy steel, iron alloy, graphite electrode, the strong current through the melting zone, the arc electrode into the electric furnace, the electrical energy into heat, the temperature rises to 2000 degrees, so as to achieve the purpose of melting or reaction. In addition, in the electrolysis of metal, magnesium, aluminum and sodium, the anode of the electrolytic cell is also made of graphite electrode. The resistance furnace for carborundum is also made of graphite electrode as furnace head conducting material.

Q: What are the uses of graphite? What are the downstream products of graphite?: As refractory material: graphite and its products have the properties of high temperature resistance and high strength. They are mainly used in the metallurgical industry to make graphite crucibles. In the process of steelmaking, graphite is often used as a protective agent for steel ingots and lining of metallurgical furnaces

Q: Can graphite crucibles be used for melting rare earth metals?: Yes, graphite crucibles can be used for melting rare earth metals. Graphite is known for its high melting point, good thermal conductivity, and resistance to chemical reactions, making it an ideal material for high-temperature applications such as melting rare earth metals. Additionally, graphite crucibles are durable and can withstand the harsh conditions of molten metals, making them a suitable choice for melting and refining rare earth metals. However, it is important to note that some rare earth metals, such as cerium, can react with graphite at high temperatures, leading to the formation of carbonates. Therefore, it is advisable to consult the specific properties and reactivity of each rare earth metal before using graphite crucibles for melting.

Q: What are the different methods of preventing contamination from graphite dust?: There are several methods that can be employed to prevent contamination from graphite dust. 1. Ventilation Systems: Installing proper ventilation systems in areas where graphite dust is generated is crucial in preventing its spread. These systems help to capture and remove the dust particles from the air, reducing the chances of inhalation or settling on surfaces. 2. Enclosures and Barriers: Creating physical barriers and enclosures around graphite dust generating areas can help contain the dust particles within a controlled space. This prevents the dust from spreading to other parts of the facility or affecting nearby equipment. 3. Personal Protective Equipment (PPE): Workers who are exposed to graphite dust should wear appropriate PPE to minimize contamination. This may include wearing respiratory masks or respirators, goggles, gloves, and protective clothing to prevent direct contact with the dust. 4. Regular Cleaning and Maintenance: Implementing a strict cleaning and maintenance schedule is essential to prevent the buildup and spread of graphite dust. Surfaces, equipment, and machinery should be regularly cleaned using methods that minimize dust dispersion, such as wet cleaning or vacuuming with HEPA filters. 5. Process Modification: Modifying the production process can also help prevent graphite dust contamination. Implementing measures like wet cutting or machining instead of dry processes can significantly reduce the generation and spread of dust particles. 6. Training and Awareness: Educating workers about the hazards of graphite dust and providing training on proper handling, cleaning, and maintenance procedures is instrumental in preventing contamination. Workers should be aware of the risks associated with graphite dust exposure and be equipped with the knowledge to take necessary precautions. By adopting a combination of these methods, facilities can effectively prevent contamination from graphite dust, ensuring a safe and healthy working environment.

Q: Can graphite crucibles be used for melting brass?: Indeed, melting brass can be accomplished by utilizing graphite crucibles. Graphite is frequently employed in the fabrication of crucibles meant for applications involving high temperatures, such as the melting of metals like brass. The reason behind this is that graphite boasts a high melting point and possesses exceptional thermal conductivity, rendering it suitable for enduring the elevated temperatures necessary for brass liquefaction. Moreover, graphite crucibles are renowned for their durability and ability to withstand thermal shock, a crucial aspect when handling molten metals. Given that brass possesses a lower melting point when compared to metals like steel or iron, graphite crucibles offer an effective and dependable approach to melt brass.

Q: How do you prevent thermal shock in graphite crucibles?: Minimizing thermal shock in graphite crucibles can be achieved through the implementation of several important steps: 1. Gradual preheating: Prior to utilizing a graphite crucible, it is essential to gradually preheat it. This can be accomplished by placing the crucible in a furnace or kiln at a low temperature and gradually increasing it over time. By doing so, the crucible will be uniformly heated and the risk of sudden temperature changes will be minimized. 2. Avoidance of abrupt temperature fluctuations: It is crucial to handle graphite crucibles with caution in order to prevent sudden temperature changes. Exposing them to extreme heat or cold should be avoided, as this can result in thermal shock. Similarly, directly placing the crucibles on a hot surface or immersing them in cold water immediately after use is not recommended. 3. Proper handling and storage: To prevent moisture absorption and subsequent thermal shock, graphite crucibles should be stored in a dry and controlled environment. Care should also be taken when handling them to prevent dropping or banging against hard surfaces, as these actions can cause thermal shock as well. 4. Sufficient cooling: After utilization, graphite crucibles should be allowed to cool naturally and at a slow pace. Subjecting a hot crucible to a cool environment or sudden temperature change can lead to thermal shock. It is advisable to place the crucible on a non-conductive surface and let it cool at room temperature before further handling. 5. Regular examination: Conducting regular inspections of graphite crucibles to identify any signs of damage or wear is essential. Immediate attention should be given to any cracks, chips, or abnormalities, as they can weaken the crucible and increase the risk of thermal shock. If any damage is detected, it is recommended to replace the crucible to ensure its integrity in future use. By adhering to these preventive measures, the occurrence of thermal shock in graphite crucibles can be minimized, resulting in enhanced durability and performance.

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

a) Certification Name
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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