• 100 oz Kerr Graphite Crucible System 1
100 oz Kerr Graphite Crucible

100 oz Kerr Graphite Crucible

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China Main Port
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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:How do you determine the appropriate crucible insulation for a specific application?
To determine the appropriate crucible insulation for a specific application, several factors need to be considered. Firstly, it is important to understand the temperature requirements of the application. Different materials have different temperature limits, and it is crucial to select an insulation material that can withstand the desired temperature range. For high-temperature applications, materials like ceramic fiber or refractory bricks may be suitable, while for lower temperatures, materials like vermiculite or perlite could be used. Secondly, the thermal conductivity of the insulation material should be taken into account. Lower thermal conductivity ensures better heat retention and insulation capabilities. Insulation materials with low thermal conductivity, such as ceramic fiber or refractory bricks, are often preferred for applications where heat needs to be retained and controlled efficiently. The physical properties of the insulation material are also important. Factors like density, compressive strength, and resistance to thermal shock need to be considered. A denser material may provide better insulation, but it could also be heavier and more challenging to handle. Compressive strength is crucial if the crucible will be subjected to pressure or loads. Additionally, resistance to thermal shock is essential if the crucible will undergo rapid temperature changes. Furthermore, the compatibility of the insulation material with the substance being processed in the crucible should be evaluated. Some materials may react or corrode when in contact with certain chemicals or metals, potentially compromising the integrity of the crucible. It is important to select an insulation material that is chemically inert and resistant to the substances being handled. Lastly, cost and availability should be considered. Some insulation materials might be more expensive or harder to source than others. It is essential to strike a balance between the desired properties and the budgetary constraints. Ultimately, the determination of the appropriate crucible insulation for a specific application requires a comprehensive evaluation of the temperature requirements, thermal conductivity, physical properties, compatibility, and cost considerations. Consulting with experts or conducting thorough research can help in choosing the most suitable insulation material for a given application.
Q:What is the conductivity of graphite and copper, iron and zinc?
Graphite and copper, iron, and zinc are electrically conductive. The conductivity and thermal conductivity are different for different grades of materials.
Q:How is a graphite crucible used in the production of graphite electrodes?
The production of graphite electrodes relies heavily on the use of a graphite crucible, an indispensable tool. Industries such as steelmaking and electric arc furnaces heavily rely on graphite electrodes, making the crucible an essential component in the production process. When creating graphite electrodes, the first step involves placing the raw materials into the graphite crucible. These materials usually consist of a mixture of petroleum coke, coal tar pitch, and other additives. The crucible, made from high-quality graphite material, possesses exceptional thermal conductivity and can endure extremely high temperatures. Once loaded, the crucible is then subjected to intense heat within a furnace or electric arc furnace. As the temperature rises, the raw materials within the crucible begin to melt and react with one another, resulting in various chemical reactions. These reactions ultimately lead to the formation of a homogenous molten mass. The molten mixture is then carefully poured into molds, solidifying into the desired shape of a graphite electrode. The graphite crucible is crucial in this process for several reasons. Firstly, its high melting point allows it to contain and withstand the extreme temperatures required for melting the raw materials. Additionally, it ensures that the molten mixture remains isolated from the furnace, preventing any impurities or contaminants from compromising the quality of the final electrode. Moreover, the thermal conductivity of graphite enables efficient heat transfer, resulting in the uniform melting of the raw materials. This uniformity is vital in obtaining consistent and high-quality graphite electrodes. Lastly, the chemical inertness of graphite prevents any reactions between the crucible and the molten mixture, safeguarding the purity of the final electrode. To summarize, the graphite crucible performs a crucial role in the production of graphite electrodes. Its high melting point, thermal conductivity, and chemical inertness make it the ideal choice for melting raw materials to create high-quality graphite electrodes. These electrodes meet the strict requirements of various industries such as steelmaking and electric arc furnaces.
Q:What is the conductivity of graphite and the conductivity of graphite?
Graphite and copper, iron, and zinc are electrically conductive.
Q:Are there any special precautions to be taken while using graphite crucibles?
Yes, there are a few special precautions to be taken while using graphite crucibles. Firstly, it is important to handle them with care as they can be brittle and prone to cracking. It is advisable to avoid sharp impacts or sudden temperature changes to prevent damage. Additionally, graphite crucibles can release small amounts of graphite dust, so it is recommended to wear protective gloves and a mask while handling them to avoid inhalation. Lastly, it is crucial to clean the crucibles properly after each use to remove any impurities or residues that may affect future experiments or reactions.
Q:How does the thermal shock resistance of graphite affect the performance of a crucible?
The performance of a crucible is greatly influenced by the thermal shock resistance of graphite. Graphite is well-known for its exceptional thermal conductivity and high melting point, making it an ideal material for crucibles used in high-temperature applications. However, compared to other materials, the thermal shock resistance of graphite is relatively low. Thermal shock resistance refers to a material's capacity to endure sudden and extreme temperature changes without cracking or breaking. In the case of a crucible, it undergoes rapid heating and cooling cycles during various processes like melting, casting, or chemical reactions. These temperature fluctuations can impose stress on the material, potentially leading to thermal shock failure if the crucible lacks sufficient resistance. A crucible with low thermal shock resistance is more susceptible to cracking or fracturing when subjected to rapid temperature changes. This can result in the leakage of molten materials, loss of containment, or contamination of the process. Additionally, the overall structural integrity of the crucible may be compromised, negatively impacting its performance and longevity. On the contrary, a crucible with high thermal shock resistance can withstand rapid temperature changes without significant damage. It can maintain its structural integrity, ensuring the effective containment of molten materials throughout the process. This enhances the reliability and efficiency of the crucible, facilitating consistent and uninterrupted operations. Thus, it is evident that the thermal shock resistance of graphite plays a pivotal role in determining the performance of a crucible. Crucibles with superior thermal shock resistance offer increased reliability, durability, and efficiency, guaranteeing the successful execution of high-temperature processes without the risk of premature failure or contamination.
Q:How does the surface tension of graphite affect crucible performance?
The surface tension of graphite can have a significant impact on crucible performance. Graphite is known for its high surface tension, which refers to the ability of a liquid or solid to minimize its surface area by forming droplets or a curved surface. This property is crucial in crucible performance as it affects the wettability, thermal conductivity, and erosion resistance of the graphite material. Firstly, the surface tension of graphite affects its wettability with molten metals or other materials being processed in the crucible. High surface tension allows the graphite crucible to repel or resist wetting by the molten material, preventing it from sticking to the crucible walls. This is particularly important in processes such as melting or pouring metals, where the crucible needs to facilitate easy release of the molten material without any adherence or contamination. Secondly, surface tension plays a role in thermal conductivity within the crucible. Graphite has excellent thermal conductivity, and its high surface tension ensures that the heat is efficiently distributed throughout the crucible. This uniform heat distribution helps in maintaining a consistent temperature profile, reducing thermal gradients, and ensuring a more effective and controlled processing of materials. Lastly, the surface tension of graphite affects its erosion resistance, which is crucial for the crucible's longevity. The high surface tension of graphite enables it to resist erosion caused by the molten materials or any mechanical forces acting upon it. This property helps in preventing wear and tear, maintaining the structural integrity of the crucible, and prolonging its lifespan. In conclusion, the surface tension of graphite significantly affects crucible performance. It influences the wettability, thermal conductivity, and erosion resistance of the graphite material, ensuring efficient material release, uniform heat distribution, and long-lasting crucible durability.
Q:How do you determine the appropriate crucible lid seal for a specific application?
To determine the suitable crucible lid seal for a specific application, several factors must be taken into account. The first step is to evaluate the type of material used in the crucible, as different materials may require different seal types. For instance, if the application involves high temperatures or corrosive materials, a seal that can withstand these conditions is necessary. Next, the operating temperature of the application should be considered. It is important to select a lid seal that can endure the temperature range without deteriorating or compromising the seal's integrity. In high-temperature applications, specialized seals made from materials like graphite or ceramic might be required. Pressure conditions inside the crucible are another crucial factor. If the application involves high-pressure environments, a lid seal that can handle the pressure without leaking or failing is essential. It is vital to choose a seal that can maintain a tight seal specifically under the pressure conditions of the application. Additionally, the size and shape of the crucible and lid should be taken into account. The seal must fit snugly and securely to ensure a proper seal. Accurate measurements of the dimensions are necessary, and a seal that matches the shape and size of the crucible and lid should be selected. Moreover, the frequency of lid removal should also be considered. If the crucible needs to be frequently opened and closed, a seal that is easy to install and remove without compromising effectiveness is required. Quick-release or reusable seals may be suitable for such applications. Lastly, seeking guidance from experts or manufacturers specializing in crucible lid seals is recommended. They can offer valuable advice based on their knowledge and experience. They can recommend specific seals based on the application requirements and provide information on the performance and compatibility of various seal options. In conclusion, determining the appropriate crucible lid seal for a specific application involves considering factors such as the material, operating temperature, pressure conditions, size, shape, lid removal frequency, and seeking expert advice. By carefully assessing these factors, a lid seal can be selected to ensure a secure and reliable sealing solution for the crucible application.
Q:Are there different sizes available for graphite crucibles?
Yes, there are different sizes available for graphite crucibles.
Q:Can a graphite crucible be used for melting californium?
No, a graphite crucible cannot be used for melting californium. Californium is a highly reactive and radioactive element, and it requires specialized equipment to handle and melt. Graphite crucibles are commonly used for melting and casting a variety of metals and alloys due to their high melting point and resistance to heat. However, californium has different properties and chemical behavior compared to metals, and it requires a crucible made from a material that can withstand its high levels of radioactivity and reactivity.
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1. Manufacturer Overview

Location Guangdong,China (Mainland)
Year Established 2010
Annual Output Value
Main Markets North America
South America
Eastern Europe
Southeast Asia
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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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