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 alloy preparation?: Yes, graphite crucibles can be used for alloy preparation. Graphite is a suitable material for crucibles due to its high melting point, excellent thermal conductivity, and chemical inertness. It can withstand high temperatures and is commonly used in metallurgical processes for smelting and alloying different metals.

Q:Are there any health risks associated with using a graphite crucible?: Using a graphite crucible can pose certain health risks. Graphite crucibles are commonly utilized in high-temperature applications like metal casting, melting, and chemical reactions. However, when exposed to high temperatures or during handling, graphite itself can emit small particles or fine dust. Inhaling graphite particles can potentially lead to respiratory problems, particularly for individuals with pre-existing respiratory conditions like asthma or chronic bronchitis. Prolonged exposure to graphite dust can also result in the development of a lung disease known as graphite pneumoconiosis. Moreover, graphite crucibles have the ability to absorb and release trace amounts of impurities, such as heavy metals or other toxic substances, which can contaminate the materials being processed. This poses a risk to both the workers handling the crucibles and the final products. To minimize these health risks, it is crucial to handle graphite crucibles with caution and utilize appropriate personal protective equipment like gloves and masks. Maintaining a well-ventilated workspace and regularly cleaning the crucibles are also important to reduce the release of graphite particles. It is advisable to regularly monitor and evaluate the air quality in the working environment to ensure the safety of the workers.

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.

Q:Can graphite crucibles be used for eutectic growth?: Yes, graphite crucibles can be used for eutectic growth. Graphite has excellent thermal conductivity and can withstand high temperatures, making it suitable for many high-temperature applications, including the growth of eutectic alloys.

Q:How to extract pure silver from sundry Silver: In a dilute nitric acid solution of 10% concentration, silver reacts with nitric acid to produce silver nitrate.300 kg. This dilute nitric acid solution can treat 4000 kilograms of silver glass and become silver nitrate solution

Q:Is the graphite oven heating evenly?: There are two kinds of heating methods for general atomic absorption graphite furnace. One is light control mode, the other is current control mode. The light control mode at the beginning of atomization, the temperature exceeds the set temperature, and when the graphite tube is aging, the temperature is more than that. Replace the current control heating up, you try. Or try with a graphite tube.

Q:Are there any safety concerns associated with using graphite crucibles?: Using graphite crucibles comes with certain safety concerns. To begin with, graphite crucibles can reach high temperatures when used in applications involving melting metals. Mishandling them can result in burns. It is crucial to wear appropriate protective gear, such as heat-resistant gloves and clothing, when working with hot graphite crucibles. Moreover, graphite can release fine particles or dust during use or manipulation. Inhaling graphite dust can be harmful to the respiratory system, especially when exposed for extended periods or in high concentrations. It is advisable to work in a well-ventilated area or use respiratory protection, like masks, to minimize the risk of inhalation. In addition, graphite crucibles can react with certain chemicals or substances, especially strong oxidizers. This can lead to chemical reactions that may potentially cause fires or explosions. It is essential to be aware of the compatibility of graphite crucibles with the materials being handled and to handle them accordingly to prevent any hazardous reactions. Lastly, graphite crucibles can be fragile and easily break if mishandled or exposed to sudden temperature changes. Broken crucibles can have sharp edges or fragments that can cause injuries if not handled carefully. Overall, although graphite crucibles are widely used and generally considered safe, it is crucial to be aware of and address these safety concerns to ensure safe handling and minimize potential risks.

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:What are the different methods of sealing a graphite crucible?: Several methods exist for sealing a graphite crucible, each with its own advantages and considerations. One commonly used method involves the application of a graphite cement or adhesive to the joints or seams of the crucible, which is then allowed to dry or cure. This method ensures a strong and durable seal that remains intact even during high-temperature applications. However, it can be time-consuming and may require periodic reapplication. Another approach is to employ a graphite crucible cover or lid, placed on top of the crucible to create a seal. This method is relatively quick and easy to implement. However, it may not provide as tight of a seal as other methods, necessitating proper alignment and fitting of the lid or cover. In some cases, a combination of mechanical fasteners like bolts or clamps, along with a high-temperature gasket material, can be used to seal the crucible. This involves securing the crucible joints with the fasteners and applying gasket material for a tight seal. This method ensures a reliable and secure seal, even under high-temperature conditions. However, it may demand additional time and effort for installation and removal of the fasteners and gasket material. It is crucial to consider the specific application and requirements when selecting the appropriate sealing method for a graphite crucible. Factors such as operating temperature, duration, and the type of material being processed should be taken into account. Consulting the manufacturer's guidelines and instructions for the specific crucible being used is recommended to ensure proper sealing techniques are followed.

Q:How do you prevent graphite crucibles from contaminating the melted material with carbon?: To prevent graphite crucibles from contaminating the melted material with carbon, there are several steps that can be taken: 1. Preparing the crucible: Before using the crucible, it is important to properly prepare it. This involves heating the crucible to a high temperature, typically around 1000 degrees Celsius, in an oxygen-rich environment. This process, known as annealing, helps to remove any impurities and surface contaminants from the graphite crucible. 2. Coating the crucible: Applying a protective coating to the interior surface of the crucible can help prevent carbon contamination. One commonly used coating is a layer of boron nitride, which acts as a non-reactive barrier between the graphite crucible and the melted material. 3. Using a cover: When melting materials in a graphite crucible, it is advisable to use a cover or lid to minimize contact with air. This helps to prevent the crucible from reacting with the carbon in the atmosphere, reducing the risk of contamination. 4. Controlling the melting environment: Maintaining a controlled melting environment can also help prevent carbon contamination. This includes ensuring the crucible is properly sealed, using an appropriate heating method, and controlling the atmosphere inside the furnace or melting apparatus. 5. Regular maintenance and cleaning: Regularly inspecting and cleaning the crucible is essential to prevent carbon contamination. Any cracks, chips, or signs of wear should be addressed immediately, as they can lead to carbon contamination. Cleaning the crucible using appropriate methods and materials, such as mild acids or solvents, can help to remove any accumulated carbon or other contaminants. By following these preventive measures, it is possible to minimize the risk of graphite crucibles contaminating the melted material with carbon. However, it is important to note that complete elimination of carbon contamination may not always be possible, especially when working with highly reactive materials or under extreme conditions.

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
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