30 oz Kerr 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 Crucible with 30 oz/1kg melting capacity which could fit Kerr electro melt oven to melting gold, silver, copper.,etc.

Graphite Crucible 1 Kilo, Fits Kerr Electric Auto Furnace

Item Description

Graphite Crucible 1 Kilo, 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) : 57mm
Top inside diameter (mm) : 43 mm
Height with the top (mm) : 125.9mm

Q:Can graphite crucibles be used for semiconductor doping?: No, graphite crucibles cannot be used for semiconductor doping because graphite can contaminate the semiconductor material, affecting its electronic properties.

Q:Are there any safety precautions to take when using a graphite crucible?: There are various safety measures that need to be taken into account when utilizing a graphite crucible. To start with, it is crucial to handle the crucible with caution and avoid any instances of dropping or striking it against hard surfaces. Graphite crucibles are relatively delicate and can easily crack or break if handled improperly, which could result in harm or equipment damage. Moreover, it is imperative that graphite crucibles are stored in a dry and clean area in order to prevent contamination or chemical reactions. Moisture or impurities can cause the crucible to deteriorate or react with the heated materials, compromising its reliability and potentially causing accidents or failures. In addition, it is of utmost importance to utilize appropriate personal protective equipment (PPE) when working with a graphite crucible. This includes wearing heat-resistant gloves, goggles, and a lab coat or protective clothing to shield against heat and potential splashes or spills. When heating or cooling the crucible, it is advised to do so gradually in order to avoid thermal shock. Quick temperature changes can lead to the crucible cracking or breaking, posing possible danger or damage. Furthermore, it is essential to be mindful of the materials being utilized in the crucible. Certain substances may produce toxic fumes or hazardous reactions when heated in a graphite crucible, thus proper ventilation and knowledge of the materials' properties are crucial. Finally, after usage, it is vital to allow the crucible to completely cool down before handling or storing it. Attempting to handle a hot crucible can result in severe burns or injuries. By adhering to these safety precautions, the likelihood of accidents, injuries, or damage when utilizing a graphite crucible can be significantly diminished, ensuring a safe and efficient working environment.

Q:How does the density of graphite crucibles affect their performance?: The performance of graphite crucibles is significantly influenced by their density. These crucibles find wide application in high-temperature scenarios such as metal and alloy melting. The density of the crucible impacts its strength, thermal conductivity, and resistance to thermal shock. Generally, a higher density graphite crucible is preferred due to its superior mechanical strength and durability. This is especially important in applications involving frequent heating and cooling cycles, as a lower density crucible may be susceptible to cracking or damage. A higher density crucible can endure higher temperatures and offers better resistance against the corrosive effects of various molten materials. Additionally, density plays a role in the thermal conductivity of the crucible. A higher density graphite crucible tends to have higher thermal conductivity, enabling more efficient heat transfer between the crucible and the material being melted. Consequently, this leads to faster melting times and enhanced overall performance. Moreover, the density of the crucible affects its resistance to thermal shock. Thermal shock occurs when there is a sudden temperature change, resulting in internal stress within the material. A higher density crucible generally exhibits greater resistance to thermal shock, thereby reducing the likelihood of cracking or failure during the melting process. To summarize, the performance of graphite crucibles is directly influenced by their density in terms of mechanical strength, thermal conductivity, and resistance to thermal shock. It is crucial to select a crucible with the appropriate density for a specific application to ensure optimal performance and longevity.

Q:Can graphite crucibles be used for melting composite materials?: Yes, graphite crucibles can be used for melting composite materials. Graphite crucibles are known for their high melting point and good thermal conductivity, which makes them suitable for melting a wide range of materials, including composite materials. Additionally, graphite crucibles are resistant to chemical reactions, making them ideal for handling and containing composite materials during the melting process. However, it is important to consider the specific composition and melting point of the composite material to ensure that it is compatible with the graphite crucible.

Q:What are the different accessories available for graphite crucibles?: There are several different accessories available for graphite crucibles that can enhance their performance and make them more suitable for specific applications. Some of the common accessories include: 1. Crucible Tongs: These are long-handled tools specifically designed to safely handle hot crucibles. They allow for easy and secure gripping of the crucible, preventing accidental burns or spills. 2. Crucible Covers: These are lids or covers that can be placed on top of the crucible to protect the contents from contamination or oxidation. They help maintain a controlled environment inside the crucible, ensuring the purity of the materials being melted or heated. 3. Crucible Holders: These are support structures that hold the crucible in place during heating or pouring. They provide stability and prevent the crucible from tipping over or spilling its contents. 4. Crucible Racks: These are storage racks or holders designed to safely store crucibles when they are not in use. They help keep the crucibles organized and prevent any accidental damage or breakage. 5. Crucible Stirrers: These are specialized tools used to stir the contents inside the crucible during melting or mixing processes. They assist in achieving uniform temperature distribution and homogeneity of the molten material. 6. Crucible Cleaning Tools: These tools are used to clean the graphite crucible after use, removing any residue or impurities. They may include brushes, scrapers, or solvents specifically designed for graphite crucibles. 7. Crucible Lids: In addition to covers, there are also specialized lids that can be used to seal the crucible tightly during certain applications. These lids help create a controlled atmosphere or prevent the escape of volatile substances. 8. Crucible Lifters: These tools are used to safely lift and transport hot crucibles from one location to another. They are designed to withstand high temperatures and provide a secure grip on the crucible. 9. Crucible Insulation: Insulating materials such as ceramic fiber blankets or jackets can be used to surround the graphite crucible, providing additional thermal insulation. This helps to maintain a consistent temperature and prevent heat loss. 10. Crucible Liners: Liners made of ceramic or other refractory materials can be used to protect the graphite crucible from chemical reactions or erosion caused by aggressive materials or corrosive environments. These accessories offer various advantages and options to optimize the performance and utilization of graphite crucibles based on specific requirements and applications.

Q:How does a graphite crucible handle abrasion resistance?: A graphite crucible has excellent abrasion resistance due to the unique properties of graphite.

Q:Can a graphite crucible be used for titanium melting?: It is not possible to use a graphite crucible for melting titanium. The melting point of titanium is extremely high, reaching 1,668 degrees Celsius (3,034 degrees Fahrenheit), surpassing the maximum temperature capability of graphite, which is approximately 3,000 degrees Celsius or 5,432 degrees Fahrenheit. Consequently, if a graphite crucible were employed for titanium melting, the crucible would degrade and potentially pollute the titanium. In lieu of this, a crucible composed of materials like zirconium or ceramic should be utilized for titanium melting, as they can endure the elevated temperatures necessary for the procedure.

Q:Can a graphite crucible be used for high-temperature reactions?: Indeed, high-temperature reactions can be carried out using a graphite crucible. With its exceptionally high melting point of approximately 3,500 degrees Celsius, graphite proves itself as an ideal material for enduring extreme temperatures. Moreover, its remarkable thermal conductivity not only facilitates effective heat transfer but also ensures consistent heating of the reactants. Furthermore, graphite exhibits chemical inertness and low reactivity, rendering it impervious to corrosion and applicable for diverse chemical reactions. Consequently, a graphite crucible finds widespread utilization in high-temperature scenarios, including the melting of metals, pyrolysis, and other thermally-driven reactions.

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:Corundum crucible and graphite crucibleSome enterprises use graphite crucibles in vacuum furnaces, while some larger ones use corundum crucibles. What I want to know is the advantages and disadvantages of corundum crucibles and graphite crucibles: Graphite crucible is a high temperature resistant and difficult to sinter material. But the biggest problem must be used in vacuum or reducing atmosphere. Otherwise, graphite is easily oxidized at high temperature. Moreover, this crucible is more expensive

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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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