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: Can a graphite crucible be used for iron melting?: Using a graphite crucible is not suitable for melting iron since iron has a higher melting point compared to graphite. Therefore, a crucible made of a material with a higher melting point, such as clay graphite or silicon carbide, is necessary for iron melting. If a graphite crucible were used, it would melt or deteriorate, resulting in contamination of the molten iron and possible harm to the furnace or equipment. To ensure safe and effective melting operations, it is vital to select the appropriate crucible material based on the metal's melting point.

Q: Why is it a change of gold? Now it's black and muddy: Extraction principleThe use of ferrous chloride to gold reduction precipitation from waste liquor, the reaction is as follows: AuCl3+3FeCl2 and 3FeCl3+Au:

Q: Electromagnetic induction heating device into the copper coil heater, to use more power consumption to reach the melting temperature of iron?: The roommate's induction heater comes from a copper tube with water through it

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: Are graphite crucibles suitable for use in microwave heating?: Microwave heating is not suitable for the use of graphite crucibles. This is because graphite is an electrical conductor, while microwaves generate heat through electromagnetic waves that make water molecules vibrate and generate heat. Because graphite conducts electricity, it does not efficiently absorb microwave energy and can potentially cause arcing or damage to the microwave oven. Furthermore, graphite crucibles may release particles into the food or substance being heated, making them unsuitable for microwave use. It is recommended to use containers that are specifically designed for microwave heating and are labeled as microwave-safe.

Q: What can replace a graphite crucible?: Installation of crucible:1. The crucible base (crucible station) requires the same crucible bottom diameter or greater height of the crucible platform to prevent fire from spraying into the crater above the crucible.2. Using refractory bricks, the crucible station shall be a round brick, flat without bending, and shall not be made of brick or semi - uniformly, preferably imported graphite crucibles.3. The unit is placed in a crucible melting, melting of the solution in the center, the coke powder, made of ash or refractory cotton mat, in order to avoid the crucible and crucible Taiwan rod, erected after the crucible, need to melt and the need for the central level (highest level ruler).4. The size of the crucible and furnace fit, the distance between the crucible and the molten wall, shall be suitable for at least 40mm.5. When the furnace crucible is installed, the gap in the gap below the contact brick, the crucible should be set aside about 30-50MM dollars gap, not the bottom pad, things, mouth and smooth cotton, refractory material, furnace wall. Requires a fixed furnace wall, refractory bricks, thermal expansion, space heating after the required corrugated cardboard, 3mm thick pad crucible.

Q: What are the different methods of preventing graphite crucible leakage?: To prevent graphite crucible leakage, there are various approaches that can be utilized. To begin with, ensuring the crucible is properly prepared and installed is essential. This involves thoroughly cleaning the surfaces of the crucible and the lid or cover that it mates with. By eliminating any dirt or debris, a tighter seal can be achieved. Additionally, applying a thin layer of graphite lubricant or a high-temperature sealant to the mating surfaces can aid in creating a more secure seal, thus preventing leakage. Another effective method is the utilization of gaskets or O-rings between the crucible and the lid. These gaskets, typically composed of materials like graphite, ceramic fiber, or metal, are designed to provide a reliable seal. Placing the gasket between the crucible and the lid establishes a barrier, effectively preventing any molten metal or other substances from escaping. Proper tightening of the crucible lid or cover is also crucial in preventing leakage. Excessive tightening can lead to damage and subsequent leaks, while insufficient tightening can result in a loose seal. Adhering to the manufacturer's recommended torque specifications for the lid or cover is imperative to ensure a proper seal. In addition, regular inspection and maintenance of the crucible play a vital role in preventing leakage. Promptly addressing any signs of cracks, chips, or deterioration is essential, as these issues can compromise the crucible's integrity. By either replacing damaged crucibles or carrying out timely repairs, the risk of leakage can be minimized. Furthermore, proper handling and usage of the crucible contribute significantly to leakage prevention. Avoiding sudden temperature changes, thermal shocks, and excessive mechanical stresses can help prolong the crucible's lifespan and maintain its integrity. It is essential to follow the manufacturer's recommended operating procedures and guidelines to ensure the crucible remains intact and leakage-free. In conclusion, by implementing these methods - proper preparation and installation, utilization of gaskets or O-rings, correct lid tightening, regular inspection and maintenance, and appropriate handling - leakage in graphite crucibles can be effectively prevented, guaranteeing a safe and efficient operation.

Q: How does the reactivity of graphite affect the performance of a crucible?: The reactivity of graphite directly affects the performance of a crucible. Graphite is known for its low reactivity and high thermal conductivity, making it an excellent material for crucibles. Its low reactivity means that it does not easily react with the substances being melted or heated inside the crucible, ensuring that the purity of the materials is maintained. This is particularly important in applications such as chemical analysis and metallurgy, where maintaining the integrity of the sample is crucial. Furthermore, the high thermal conductivity of graphite allows for efficient heat transfer, ensuring that the heat is evenly distributed throughout the crucible. This property helps in achieving uniform heating and melting of substances inside the crucible, leading to consistent and accurate results. In addition to its low reactivity and high thermal conductivity, graphite also has a high melting point, making it capable of withstanding high temperatures without deforming or breaking. This is essential for applications that involve high-temperature processes, such as melting metals or performing high-temperature chemical reactions. Overall, the reactivity of graphite plays a vital role in the performance of a crucible by ensuring the purity of the substances being heated, facilitating efficient heat transfer, and withstanding high temperatures.

Q: How does the erosion resistance of graphite affect the performance of a crucible?: The performance of a crucible is significantly influenced by the erosion resistance of graphite. Graphite is renowned for its exceptional ability to withstand the gradual destruction caused by factors like heat, chemicals, and mechanical forces. In the case of a crucible, which is utilized for melting and holding substances at high temperatures, erosion resistance is of utmost importance in order to preserve the crucible's integrity and longevity. The erosion resistance of graphite ensures that the crucible can endure the harsh conditions it encounters during the melting process. To begin with, the erosion resistance of graphite helps prevent the crucible from deforming or cracking when exposed to high temperatures. Due to its high melting point and ability to withstand extreme heat, graphite is an ideal material for crucibles. Without erosion resistance, the crucible would be susceptible to thermal shock, resulting in cracks or failure. Additionally, erosion resistance is vital for maintaining the chemical stability and purity of the crucible. Graphite is chemically inert, meaning it does not react with most substances. This property allows the crucible to contain a wide range of materials without the risk of contamination. Moreover, the erosion resistance of graphite ensures minimal loss of graphite particles into the molten materials, preventing impurities from entering the final product. Furthermore, the erosion resistance of graphite contributes to the durability and overall performance of the crucible. Graphite crucibles are often subjected to mechanical stresses, such as stirring or pouring molten substances. The erosion resistance of graphite prevents the crucible from wearing away or deteriorating over time, guaranteeing that it can be used repeatedly without compromising its functionality. In conclusion, the erosion resistance of graphite is essential for the performance of a crucible. It helps maintain structural integrity, withstand high temperatures, preserve chemical stability, and enhance durability. Without erosion resistance, the crucible would be susceptible to failure, resulting in potential contamination, material loss, and reduced lifespan.

Q: How to maintain the graphite crucible?: In this way, the graphite crucible can not be used when the graphite crucible is used, and the residue left in the graphite crucible is damaged by the graphite crucible itself

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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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