Graphite Crucible Sizes for Galloni/VCM

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 50 Sets set

Supply Capability:: 10000 Sets per Month set/month

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Detailed Product Description

Graphite casting crucible made of high pure graphite material, could be used with Galloni / VCM casting machine.

Graphite crucible for Galloni/VCM

Specification:

Graphite crucible: OD 78 * H 120 MM,

Graphite stopper: OD 19* L200 MM

Features:

High purity, fine grain, good performance of electrical conductivity and thermal conductivity, high density, good corrosion resistance, thermal shock resistance, thermal stability, high mechanical strength, low permeability, and good oxidation resistance. The raw material is capable of producing various semiconductor molds and radio tube.

Graphite Materials index:

Content: 99.99% graphite

Density: 1.87g/cm3

Compressive strength: 65mPa

Shore hardness: 55

Porosity: 15%

Q: How does the wall thickness of a graphite crucible affect the melting process?: The melting process is significantly influenced by the thickness of the graphite crucible walls. The walls' thickness determines both the crucible's heat transfer rate and overall efficiency. If the wall is thicker, it possesses greater thermal mass, enabling it to absorb and retain more heat. This proves advantageous in applications where a gradual and controlled heating or cooling process is desired. The increased thermal mass aids in stabilizing the temperature, preventing rapid fluctuations that can negatively impact the melting process. Alternatively, a thinner wall possesses less thermal mass and facilitates faster heat transfer. This proves beneficial when quick and efficient melting is required. The thinner walls allow for swifter heat transfer to the material being melted, resulting in shorter melting times and increased productivity. However, it is crucial to note that a thinner wall may be more susceptible to thermal stress and cracking due to the greater temperature differentials between the inner and outer parts of the crucible. This can potentially contaminate the melted material or even cause the crucible to fail. Moreover, the wall thickness affects the crucible's overall durability and lifespan. Thicker walls generally exhibit greater resistance to wear and tear, providing a longer operational life. This becomes particularly important in high-temperature applications where the crucible is exposed to extreme conditions. To summarize, the wall thickness of a graphite crucible directly impacts the melting process. Thicker walls provide improved temperature stability but may result in longer melting times, while thinner walls allow for faster heat transfer but may be more susceptible to thermal stress. Selecting the appropriate wall thickness depends on the specific requirements of the melting process and should be carefully considered to achieve optimal results.

Q: Can a graphite crucible be used for melting neptunium?: No, a graphite crucible cannot be used for melting neptunium. Neptunium is a highly radioactive and pyrophoric element, meaning it spontaneously ignites in air. Graphite is not suitable for containing such reactive and hazardous materials. Instead, a specialized crucible made of a more resistant material, such as tantalum or platinum, would be required to safely melt neptunium. These materials have a higher melting point and are better equipped to handle the extreme conditions associated with neptunium.

Q: Who knows the method for determining the total iron content in iron ore?: The routine analysis of iron ore is a simplified analysis of the determination of total iron (TFe), ferrous iron, soluble iron, silicon, sulfur, phosphorus. The analysis of the money also includes: alumina, calcium oxide, Magnesium Oxide, manganese oxide, arsenic, potassium, sodium, vanadium, iron, chromium, nickel, cobalt, bismuth, silver, barium, strontium, lithium, and rare dispersed elements. Absorb water, combine water, burn down, carbon dioxide and so on. This section focuses on the determination of total iron.

Q: How to extract gold from activated carbon filter?: Depends on the gold in your filter is what state, the ionic state can be used acid and other analytical solution, and then reducing agent or thiourea reduction of gold, simple gold can be replaced by Wang Shuirong, but the impurities will be more.

Q: Can graphite crucibles be used with induction heating?: Yes, graphite crucibles can be used with induction heating. Graphite is a good conductor of electricity and is highly resistant to heat, making it an ideal material for use in induction heating applications. Induction heating works by generating an alternating magnetic field, which induces electrical currents within conductive materials like graphite. These currents generate heat due to the resistance of the material, allowing the graphite crucible to reach high temperatures quickly and efficiently. Additionally, graphite crucibles have the advantage of being chemically inert, making them suitable for a wide range of applications, including inductive heating processes.

Q: What are the considerations for selecting a crucible stand for graphite crucibles?: When choosing a crucible stand for graphite crucibles, it is important to take into account several key factors: 1. Material: The material of the stand must be able to withstand the high temperatures associated with graphite crucibles. Common options include stainless steel, cast iron, and ceramic. 2. Stability: The stand should be sturdy and stable to ensure the crucible remains steady during heating. This is especially crucial when working with high temperatures or conducting experiments involving stirring or transferring materials. 3. Size and shape: The stand should be designed to accommodate the specific size and shape of the graphite crucible being used. It should provide a secure fit to prevent any movement or potential accidents. 4. Heat resistance: The stand should possess excellent heat resistance properties to avoid deformation or damage when exposed to high temperatures. It should be able to withstand the thermal expansion and contraction that occurs during heating and cooling cycles. 5. Support: The stand should offer sufficient support for the crucible, ensuring it is held securely in place. It should be designed in a way that minimizes contact between the crucible and the stand, reducing the risk of contamination. 6. Accessibility: The stand should allow for easy access to the crucible for loading and unloading materials. It should have a design that enables easy handling and manipulation of the crucible, ensuring safety and efficiency during operations. 7. Compatibility: The stand should be compatible with the heating equipment being used. It should fit properly on the heating apparatus and be able to withstand the associated heat sources, such as Bunsen burners or electric furnaces. By considering these factors, one can choose an appropriate crucible stand that ensures the safe and effective use of graphite crucibles in various applications, including chemical analysis, metal casting, or laboratory experiments.

Q: What are the different methods of preventing thermal shock in a graphite crucible?: Some of the different methods of preventing thermal shock in a graphite crucible include preheating the crucible before use, gradually heating or cooling the crucible to avoid rapid temperature changes, using a protective coating or refractory lining on the crucible, and avoiding direct contact with extremely hot or cold materials.

Q: Can graphite crucibles be used for material synthesis?: Yes, graphite crucibles can be used for material synthesis. Graphite is an excellent choice for crucibles in material synthesis applications due to its unique properties. It has a high melting point, exceptional thermal conductivity, and chemical inertness, which make it suitable for various high-temperature reactions and processes. Graphite crucibles are commonly used in the synthesis of materials such as metals, alloys, ceramics, and compounds. They are particularly favored in processes involving high temperatures, such as melting, heating, and vaporization. The high thermal conductivity of graphite allows for efficient heat transfer, ensuring uniform heating and temperature distribution throughout the crucible. Another advantage of graphite crucibles is their chemical inertness. They do not react with most materials, making them ideal for synthesizing compounds or alloys without contamination. Additionally, graphite has low reactivity with oxygen, which is crucial in preventing unwanted oxidation during material synthesis. Graphite crucibles are also known for their durability and resistance to thermal shock. They can withstand rapid temperature changes without cracking or breaking, ensuring the integrity of the material synthesis process. This durability allows for repeated use of the crucibles, making them a cost-effective option in the long run. Overall, graphite crucibles are widely used in material synthesis due to their high melting point, excellent thermal conductivity, chemical inertness, and durability. Their unique properties make them suitable for a wide range of applications and ensure the successful synthesis of various materials.

Q: How is a graphite crucible used in the manufacturing industry?: Various applications in the manufacturing industry necessitate the use of a graphite crucible. Its primary function is to melt and hold metals and alloys at elevated temperatures during casting and molding procedures. Materials with high melting points, such as steel, iron, copper, and aluminum, are frequently encountered in the manufacturing industry. To safely contain and endure these extreme temperatures without melting or reacting with the molten metal, a graphite crucible, composed of high-purity carbon, is employed. This is made possible by graphite's distinct properties, including its high thermal conductivity and resistance to chemical corrosion. During the manufacturing process, the graphite crucible is positioned in a furnace or a similar heating device, where it is gradually heated to the desired temperature. Once the crucible reaches the appropriate temperature, the metal or alloy is introduced into it, leading to its melting. The crucible serves as a container, retaining the molten metal until it is ready to be poured into a mold or utilized for other manufacturing procedures. In addition, graphite crucibles find wide application in smelting and refining processes. These procedures involve subjecting the metal to high temperatures in the crucible in order to eliminate impurities and unwanted elements. The high thermal conductivity of the crucible ensures even distribution of heat, enabling efficient and consistent refining. Furthermore, the manufacturing industry favors graphite crucibles due to their durability and longevity. They can endure repeated use at high temperatures without cracking or deteriorating, making them a cost-effective choice for continuous melting and casting in manufacturing processes. To summarize, a graphite crucible is an indispensable tool in the manufacturing industry. Its ability to withstand high temperatures, resist chemical corrosion, and facilitate efficient heat transfer makes it suitable for melting metals and alloys, as well as for smelting and refining processes. The durability and longevity of graphite crucibles contribute to their extensive use and effectiveness in the manufacturing industry.

Q: The difference between atomic absorption pyrolytic graphite tube and common graphite tube: Atomizer with different flame atomizer consists of three parts: atomizer, premixing chamber and burner. Features: easy operation and good reproducibility. Graphite furnace atomic device is a type of system will be placed in the pipe wall, graphite platform, carbon sample holes or graphite crucible with electric heating to a high temperature to achieve atomization. Tubular graphite furnace is the most commonly used atomization device. The atomization program is divided into drying, ashing, atomization and high temperature purification. The atomization efficiency is high: under the adjustable high temperature, the sample utilization rate is 100%. High sensitivity: the detection limit is 10-6~10-14. Small amount of sample: suitable for determination of refractory elements.

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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
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