High-purity graphite crucibles are used to contain materials that require high-temperature processing, like melting and casting metals and alloys. They can withstand extreme heat up to 3000°C without melting or deforming. Graphite crucibles are chemically inert, resisting corrosion from acids, bases, and solvents, making them suitable for handling various materials without contamination or reactions. They also have good thermal shock resistance, enduring rapid temperature changes without cracking. Available in different sizes and shapes, they can be cylindrical, conical, or bowl-shaped, with optional lids or caps for protection during heating or cooling.
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high purity graphite crucible
Item Number : PMC
Alumina (Al2O3) Crucible With Lid Cylindrical Laboratory Crucible
Item Number : KM-C02
Arc-shaped alumina ceramic crucible/high temperature resistant
Item Number : KM-C016
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Item Number : PTFE-31
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Boron Nitride (BN) Ceramic Parts
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Item Number : KM-C08
Aluminum Oxide (Al2O3) Protective Tube - High Temperature
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Metal Alloy Grinding Jar With Balls
Item Number : GJ-1
Alumina (Al2O3) Ceramic Crucible For Laboratory Muffle Furnace
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Item Number : KMS02
Item Number : KES01
Item Number : KME07
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Alumina/zirconia Grinding Jar With Balls
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Laboratory formalin specimen jar sealed sample bottle
Item Number : KTG-3
Graphite crucibles are widely used in various industries, including metallurgy, foundries, jewelry manufacturing and chemical laboratories. They are commonly used in processes such as melting and casting of metals, alloys and other materials. Their high purity and inertness ensure the integrity and quality of processed materials.
It’s important to note that while high-purity graphite crucibles are extremely durable and resistant to high temperatures and chemicals, they can still experience wear and gradual oxidation over time. Proper care and maintenance, such as avoiding thermal shock and regular cleaning, can help extend the life and performance of your graphite crucible.
To sum up, high-purity graphite crucible is a special container made of high-quality graphite material. They are designed to withstand high temperatures, resist chemical attack, and have good thermal shock resistance. Graphite crucibles are used in processes involving high-temperature material processing, such as melting and casting. Their high purity and inertness make them suitable for processing a variety of materials without causing contamination or reactions. Proper care and maintenance are necessary to maximize its life and performance.
FAQ
How are high-purity graphite crucibles made?
High-purity graphite crucibles are typically manufactured through a process called isostatic pressing. In this method, graphite powder is placed in a rubber mold, and then subjected to high pressure from all directions. This pressure compacts the graphite particles into a dense and uniform crucible shape. The crucible is then heated to a high temperature to remove any impurities and improve its purity.
What are the common applications of high-purity graphite crucibles?
High-purity graphite crucibles have a wide range of applications in industries such as metallurgy, foundries, and laboratories. They are commonly used for melting and casting non-ferrous metals, including aluminum, copper, and precious metals. High-purity graphite crucibles are also utilized in the production of alloys and high-temperature ceramics. They are essential in processes such as chemical analysis, spectroscopy, and sample preparation in laboratories. Additionally, these crucibles find applications in the semiconductor industry for the melting and growing of silicon and other semiconductor materials.
What factors should be considered when selecting high-purity graphite crucibles?
When selecting high-purity graphite crucibles, several factors should be considered. Firstly, the size and capacity of the crucible should align with the intended application and the amount of material to be melted or processed. The crucible's thermal conductivity, thermal shock resistance, and chemical compatibility should be evaluated to ensure they meet the specific process requirements. It is important to select crucibles made from high-quality graphite material with high purity levels to minimize contamination and ensure excellent performance. The crucible's design and construction should also be considered, such as the presence of handles or pouring spouts for easy handling. Additionally, it is advisable to consult with manufacturers or experts in the field to ensure the selection of the most suitable high-purity graphite crucibles for specific applications.
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