Graphite Crucible Price for SIC Crucibles Melting Aluminium, Copper, Brass, Clay Graphite Crucible
- Ref Price:
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 1000 pc/month
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Quick Details for SiC Graphite Crucibles
| Type: | High Strength, graphite crucible crucible | Application: | melting metal | Height: | as your requirements |
| Composition: | High Pure | Top Diameter: | 10-600mm | Bottom Diameter: | 10-1000mm |
| Place of Origin: | China (Mainland) | Brand Name: | Model Number: | ||
| Color: | Black grey | Si3N4%: | 5min | Fe2O3%: | 0.7max |
| C%: | 30-45 | Apparent porosity: | 30max | Refractoriness: | 1680 |
| Bulk Density: | 1.71min | Using life: | >5000 hours | MAX temperature: | 1600c |
Packaging & Delivery
| Packaging Details: | Seaworty packing or as per customer's detail requirement of graphite crucible. |
| Delivery Detail: | within 20-30 days after confirm order of graphite cru |
SiC Graphite Crucibles For Melting Aluminium And Copper, Brass
Product Description
Specifications for Graphite Silicon Carbide Crucible For Aluminum Melting :
1.Long working lifetime: its working lifetime is increased 3-5 times over normal clay-crucible due to the compact body formed under high pressure.
2.High thermal conductivity: high-density body and low apparent porosity greatly improve its heat conductivity.
3.New-style materials: new heat conduction material ensures faster heat conductivity and pollution-free product, reduces adherent slag.
4.Resistance to corrosion:better anti-corrosion than normal clay-crucible.
5.Resistance to oxidation: advanced process dramatically improves its oxidation resistance, which ensures persistent heat conductivity and long working lifetime.
6.High-strength: high-density body and logical structure make the product better compression property.
7.Eco-friendly: energy-efficient and pollution-free, not only ensure metal product purity, but also ensure sustainable development on environment.
8.Multi-function: Can be used in induction graphite crucible furnace
Physicochemical Properties
Type of Crucible | Type S | Type D |
Carbon Content/% | ≥38 | ≥45 |
Bulk Density/(g/cm3) | ≥1.70 | ≥1.85 |
Apparent Porosity/% | ≤29 | ≤21 |
Compression Strength/MPa | ≥20 | ≥25 |
Refractoriness/°C | ≥1400 | ≥1400 |
Type S: Clay graphite crucible
Type D: Isostatic pressing graphite crucible
Cited from CNS China National Standard of Graphite Crucible, which is solely drifted by TIANFU company.
Content Composition
C% | Sic% | AL2O3% | SIO2% |
45%-50% | 20%-30% | 10%-12% | 15-25% |
- Q: Is it possible to repair a cracked graphite crucible?
- No, it is not possible to repair a cracked graphite crucible.
- Q: What is the use of graphite for corrosion resistance?
- Made of graphite crucibles; used for melting aluminium. Graphite electrode.
- Q: Can graphite crucibles be used for material synthesis?
- Material synthesis can utilize graphite crucibles, as they possess distinctive properties that make them an excellent choice. Graphite's high melting point, exceptional thermal conductivity, and chemical inertness render it appropriate for various high-temperature reactions and processes. Graphite crucibles find frequent use in synthesizing metals, alloys, ceramics, and compounds. They are particularly favored for tasks involving high temperatures, such as melting, heating, and vaporization. Graphite's high thermal conductivity enables efficient heat transfer, ensuring uniform heating and temperature distribution throughout the crucible. Chemical inertness is another advantage of graphite crucibles. They do not react with most materials, making them ideal for synthesizing compounds or alloys without contamination. Additionally, graphite exhibits low reactivity with oxygen, which is crucial in preventing unwanted oxidation during material synthesis. Graphite crucibles are also renowned for their durability and resistance to thermal shock. They can withstand rapid temperature changes without cracking or breaking, ensuring the integrity of the material synthesis process. This durability allows for repeated use of the crucibles, making them a cost-effective option in the long run. In conclusion, the widespread use of graphite crucibles in material synthesis can be attributed to their high melting point, excellent thermal conductivity, chemical inertness, and durability. These unique properties make them suitable for a wide range of applications and ensure the successful synthesis of various materials.
- Q: How do you prevent carbon contamination in a graphite crucible?
- To prevent carbon contamination in a graphite crucible, there are several steps that can be taken: 1. Proper cleaning: Before use, the graphite crucible should be thoroughly cleaned to remove any residual carbon or impurities. This can be done by scrubbing the crucible with a mild detergent and rinsing it with distilled water. It is important to avoid using abrasive cleaners or brushes that can damage the crucible. 2. Preheating: Preheating the graphite crucible before use can help to remove any remaining impurities. This can be done by placing the crucible in a furnace or kiln and gradually increasing the temperature to around 1000°C (1832°F). This process should be done slowly to prevent thermal shock and cracking of the crucible. 3. Proper handling: When handling the graphite crucible, it is important to avoid touching the inside surface with bare hands as this can transfer oils and contaminants. It is recommended to wear gloves or use clean, lint-free tools when working with the crucible. 4. Controlled atmosphere: Carbon contamination can also occur due to exposure to air or other reactive gases. To prevent this, it is advisable to use the crucible in a controlled atmosphere, such as in a vacuum or inert gas environment. This can help to minimize the chances of carbon contamination. 5. Avoid overheating: Excessive heat can cause the graphite crucible to react with the materials being processed, leading to carbon contamination. It is important to carefully monitor and control the temperature during heating or melting processes to prevent overheating of the crucible. By following these preventive measures, carbon contamination in a graphite crucible can be effectively minimized, ensuring the purity and integrity of the materials being processed.
- Q: The difference between single graphite furnace graphite furnace atomic absorption spectrophotometer and double graphite furnace
- Flame atomizer: it consists of three parts: sprayer, premixing chamber and burner. Features: easy operation and good reproducibility.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.The atomization program is divided into drying, ashing, atomization and high temperature purificationThe atomization efficiency is high: under the adjustable high temperature, the sample utilization rate is 100%High sensitivity: the detection limit is 10-6~10-14Small amount of sample: suitable for determination of refractory elements
- 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: Is it possible to cast or mold materials using a graphite crucible?
- Yes, it is possible to cast or mold materials using a graphite crucible. Graphite crucibles are widely used in various industries, including foundries, jewelry making, and metal casting. Graphite has high thermal conductivity and can withstand high temperatures, making it an ideal material for melting and casting processes. It is commonly used for melting metals, alloys, and other materials that require high heat resistance. The graphite crucible provides a controlled environment for the molten material, ensuring efficient and precise casting or molding.
- Q: How long does the graphite crucible extend its service life?
- Graphite crucible is still the correct way to use, how to cool down, how to preserve, are very important.
- Q: Are graphite crucibles suitable for use in a vacuum environment?
- Graphite crucibles are indeed appropriate for utilization in a vacuum setting. Graphite, being an exceptionally stable substance, has the ability to endure elevated temperatures and corrosive surroundings. Consequently, it is extensively favored in various industrial applications, including those within vacuum environments. Notably, graphite crucibles possess outstanding thermal conductivity and resistance to thermal shock, both of which are crucial attributes for upholding temperature stability in a vacuum. Moreover, graphite exhibits low outgassing properties, signifying that it releases negligible amounts of gas or vapor when subjected to a vacuum. This further enhances its suitability for employment in such environments. All in all, graphite crucibles emerge as a dependable and efficient alternative for conducting experiments or processes in vacuum conditions.
- Q: Is it possible to achieve a controlled atmosphere inside a graphite crucible?
- Yes, it is possible to achieve a controlled atmosphere inside a graphite crucible. Graphite crucibles are often used in high-temperature applications such as metallurgy and chemical processes. They have excellent thermal conductivity and can withstand extreme temperatures. To create a controlled atmosphere, various methods can be employed, such as using gas purging techniques or introducing specific gases into the crucible to create the desired environment. The ability to achieve a controlled atmosphere depends on the design and sealing capabilities of the crucible, as well as the specific requirements of the process being carried out.
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Graphite Crucible Price for SIC Crucibles Melting Aluminium, Copper, Brass, Clay Graphite Crucible
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 1000 pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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