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: Can a graphite crucible be used for melting einsteinium?: No, a graphite crucible cannot be used for melting einsteinium. Einsteinium is a highly radioactive element with a melting point of 860 degrees Celsius. Graphite crucibles typically have a maximum working temperature of around 3000 degrees Celsius, which is sufficient for most metal melting applications. However, einsteinium's extreme radioactivity poses significant health risks, and it requires specialized handling and containment procedures. Additionally, the properties of einsteinium make it highly reactive and corrosive, which can cause damage to the graphite crucible. Therefore, a graphite crucible is not suitable for melting einsteinium, and alternative materials and containment methods must be used.

Q: Can a graphite crucible be used for lead melting?: Yes, a graphite crucible can be used for lead melting. Graphite crucibles are commonly used in foundries and metallurgical industries for melting various metals, including lead. Graphite has a high melting point, excellent thermal conductivity, and chemical resistance, making it suitable for high-temperature applications like lead melting. Additionally, graphite crucibles are durable and can withstand repeated use, making them a cost-effective choice for melting lead. However, it is important to ensure that the graphite crucible is in good condition and free from any impurities or contaminants that could affect the quality of the melted lead.

Q: What are the common sizes available for graphite crucibles?: Graphite crucibles are available in a range of sizes to suit different applications and industries. The common sizes typically available for graphite crucibles include 1kg, 2kg, 3kg, 4kg, 6kg, 8kg, 10kg, 12kg, 16kg, 20kg, 25kg, and 30kg. These sizes are commonly used in metallurgical, chemical, and scientific laboratories, as well as in industries such as jewelry making, metal casting, and manufacturing. However, it is important to note that the availability of sizes may vary depending on the manufacturer or supplier.

Q: Can graphite crucibles be used for melting composite materials?: Indeed, composite materials can be melted using graphite crucibles. Renowned for their elevated melting point and excellent thermal conductivity, graphite crucibles are well-suited for the fusion of various materials, including composite ones. Moreover, their resistance to chemical reactions renders them optimal for managing and confining composite materials while undergoing the melting procedure. Nevertheless, it is crucial to thoroughly assess the composite material's specific composition and melting point to guarantee its compatibility with the graphite crucible.

Q: Can a graphite crucible be used for ceramic or porcelain production?: No, a graphite crucible cannot be used for ceramic or porcelain production. Graphite is a form of carbon that has a high melting point and is often used for melting metals and alloys due to its excellent heat resistance. However, when it comes to ceramic or porcelain production, higher temperatures are required, usually exceeding the melting point of graphite. Additionally, graphite crucibles are porous and can absorb moisture, which can cause issues during the firing process of ceramics or porcelain. For these reasons, specialized crucibles made of materials like alumina or zirconia are typically used in ceramic or porcelain production to ensure proper firing and prevent contamination.

Q: What are the advantages of a graphite furnace atomizer compared to a flame atomizer?: 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.

Q: Can graphite crucibles be used for melting nickel?: Indeed, nickel can be melted using graphite crucibles. These crucibles find widespread usage in high-temperature scenarios, such as the melting of different metals and alloys. Graphite boasts exceptional thermal conductivity and can endure extreme temperatures, rendering it an apt choice for melting nickel, which liquefies at approximately 1,455 degrees Celsius (2,651 degrees Fahrenheit). Furthermore, graphite crucibles exhibit commendable chemical resistance and do not undergo any reaction with nickel, thus facilitating a pristine and productive melting operation.

Q: Who is the melting point of graphite and diamond?: When diamond and graphite melt, the covalent bonds of C-C must be destroyed. With the C-C bond, the longer the bond length, the lower the bond energy (the length of the stick is easily broken). Therefore, the diamond bond length is larger than graphite, and the melting point is less than graphite.

Q: Why do laboratory crucibles use ceramics instead of glass?: Because the glass has a softening temperature, and the temperature is below 1000 DEG C, therefore, made of glass crucible at high temperature when the heating crucible may be softening deformation, and the glass crucible should not contact with alkaline substances.

Q: How do you prevent graphite crucibles from contaminating the melted material with carbon?: To avoid carbon contamination from graphite crucibles in the melted material, there are several steps that can be taken: 1. Crucible preparation: Before using the crucible, it is crucial to prepare it properly. This involves heating the crucible to a high temperature, typically around 1000 degrees Celsius, in an environment rich in oxygen. This process, called annealing, helps eliminate 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 boron nitride, which acts as a non-reactive barrier between the graphite crucible and the melted material. 3. Usage of a cover: When melting materials in a graphite crucible, it is advisable to use a cover or lid to minimize air contact. This helps prevent the crucible from reacting with the carbon in the atmosphere, reducing the risk of contamination. 4. Control of the melting environment: Maintaining a controlled melting environment can also help prevent carbon contamination. This includes ensuring proper sealing of the crucible, using an appropriate heating method, and controlling the atmosphere inside the furnace or melting apparatus. 5. Regular maintenance and cleaning: Regular inspection and cleaning of the crucible are 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 suitable methods and materials, such as mild acids or solvents, can help remove any accumulated carbon or other contaminants. By following these preventive measures, it is possible to minimize the risk of carbon contamination from graphite crucibles in melted materials. 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.

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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 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
Contract Manufacturing	OEM Service Offered
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