100 oz Kerr Graphite Crucible - Tempering A Graphite Crucible

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 50 Pieces pc

Supply Capability:: 10000 Pieces per Month pc/month

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Detailed Product Description

Graphite melting crucible

Metal type : gold , silver and brass & copper

3 Kilos melting capacity

Kerr electro melt oven

Graphite Crucible 3 Kilos, Fits Kerr Electric Auto Furnace

Item Description

Graphite Crucible 3 Kilos, Fits Electric Auto Furnace.
This is a new Graphite Crucible designed for the Hand held Melting Furnace.
Can be used for all metal types, like gold ,silver,copper etc.
This model has the groove in the top for the wire type crucible tongs.
Measurements :
Top outside diameter (mm) : 102mm
Top inside diameter (mm) : 85 mm
Height with the top (mm) : 125mm

Q: What are the common sizes available for graphite crucibles?: Graphite crucibles can be found in various sizes to accommodate different applications and industries. The typical sizes for graphite crucibles include 1kg, 2kg, 3kg, 4kg, 6kg, 8kg, 10kg, 12kg, 16kg, 20kg, 25kg, and 30kg. These sizes are commonly utilized in metallurgical, chemical, and scientific laboratories, as well as in jewelry making, metal casting, and manufacturing industries. Nevertheless, it is crucial to acknowledge that the range of available sizes might differ depending on the specific manufacturer or supplier.

Q: Graphite crucible heat resistance, then graphite crucible can ignite? Charcoal is mainly composed of graphite, why charcoal can be ignited?: Is not the same as the graphite crystal transition in carbon charcoal, but amorphous carbon, no C-C covalent bond. Charcoal ignition point is 320-370 DEG C, the general fire than the high temperature, so the charcoal can be ignited.

Q: How does a graphite crucible handle corrosive substances?: A graphite crucible is highly resistant to corrosion, making it an excellent choice for handling corrosive substances. Graphite has a non-reactive nature, which allows it to withstand the attack of various chemicals, acids, and alkalis. This resistance to corrosion ensures that the crucible maintains its integrity and does not contaminate the substances being processed or stored within it.

Q: Can graphite crucibles be used for electron beam melting processes?: Yes, graphite crucibles can be used for electron beam melting processes. Graphite crucibles have excellent thermal conductivity, high melting point, and good resistance to chemical attack, making them suitable for high-temperature applications such as electron beam melting. The high thermal conductivity of graphite helps in efficient heat transfer, allowing for uniform heating and melting of the material. Additionally, graphite crucibles have good dimensional stability, which is important for maintaining precise control over the melting process. Overall, graphite crucibles are commonly used in electron beam melting processes due to their favorable properties.

Q: How do you prevent oxidation of the graphite crucible during use?: In order to prevent oxidation of the graphite crucible during usage, there are several steps that can be taken: 1. Crucible pre-conditioning is essential: It is crucial to gradually heat the graphite crucible before using it. This process aids in the elimination of any residual binders or impurities on the crucible's surface, thereby reducing its susceptibility to oxidation. 2. Application of a protective coating: The graphite crucible can be safeguarded against oxidation by applying a protective coating. There are various coatings available, such as boron nitride or zirconium oxide, which create a barrier between the crucible and the surrounding atmosphere, thus minimizing the likelihood of oxidation. 3. Atmosphere control is key: The atmosphere in which the crucible is utilized plays a vital role in preventing oxidation. Whenever possible, it is advisable to employ a controlled atmosphere, such as vacuum or inert gas (e.g., argon or nitrogen), during the heating process. This helps to minimize the presence of oxygen, which can result in oxidation. 4. Avoidance of abrupt temperature changes: Rapid temperature fluctuations can cause thermal shock, leading to cracks and increased vulnerability to oxidation. To prevent this, it is important to ensure a gradual and controlled heating and cooling process. 5. Crucible cleaning after usage: After each use, it is imperative to clean the graphite crucible thoroughly in order to eliminate any residues or contaminants that may promote oxidation. Utilize an appropriate cleaning agent and gently scrub the surface to ensure its cleanliness. By adhering to these preventive measures, the oxidation of the graphite crucible during usage can be significantly reduced, thus prolonging its lifespan and maintaining its effectiveness.

Q: Can graphite crucibles be used for rapid thermal cycling?: Yes, graphite crucibles can be used for rapid thermal cycling. Graphite has excellent thermal conductivity and high heat resistance, making it suitable for rapid temperature changes. This means that graphite crucibles can withstand the rapid heating and cooling required for thermal cycling processes. Additionally, graphite has a low coefficient of thermal expansion, which means it has minimal dimensional changes during temperature variations, making it ideal for repetitive thermal cycling.

Q: Can a graphite crucible be used for ceramic molding?: Using a graphite crucible for ceramic molding is not possible. Graphite crucibles are mainly designed for melting and holding metals and alloys at high temperatures. They lack the necessary properties to endure the high temperatures required for ceramic firing and molding procedures. The firing process in ceramic molding usually involves temperatures ranging from 1000 to 1600 degrees Celsius, which can result in the degradation, cracking, or melting of graphite crucibles. To successfully carry out ceramic molding, it is advisable to utilize crucibles made from materials like alumina, zirconia, or other refractory substances that can withstand the extreme temperatures involved in the ceramic firing process.

Q: Can graphite crucibles be used for catalyst preparation?: Yes, graphite crucibles can be used for catalyst preparation. Graphite crucibles have excellent thermal stability and chemical resistance, making them suitable for various high-temperature processes, including catalyst preparation. Additionally, graphite crucibles are inert and do not react with most catalyst materials, ensuring the integrity and purity of the catalyst during preparation.

Q: Are there any safety precautions to take when using a graphite crucible?: Yes, there are several safety precautions to take when using a graphite crucible. Firstly, it is important to always wear proper personal protective equipment (PPE) such as heat-resistant gloves, safety goggles, and a lab coat to protect against heat and potential splashes. Additionally, one should ensure that the crucible is not cracked or damaged before use, as this may lead to thermal shock and breakage during heating. When handling or transporting a hot crucible, using appropriate tongs or tools is crucial to avoid burns or accidents. It is also important to be aware of the proper temperature range for the crucible and avoid exceeding its maximum temperature limit, as this can cause it to degrade or break. Finally, always allow the crucible to cool down sufficiently before handling it after use to prevent burns.

Q: Can the medium frequency furnace be made of silicon carbide crucible?: Glass is non-magnetic, can not be magnetic induction heating. And the silicon carbide crucible can not be heated because of the magnetic induction heating. So, no way.

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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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