High Temperature Melting Graphite Crucibles - SIC Grade
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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
| Application: | melting metals | Height: | depends on your requirement | Top Diameter: | 10-1200mm |
| Bottom Diameter: | 10-1200mm | Place of Origin: | China (Mainland) | Brand Name: | |
| product name: | SiC graphite crucible china graphite crucible | top diameter: | 10-1200mm | bottom diameter: | 10-1200mm |
| height: | depends on your requirement | application: | melting gold,silver and other metals | Specific resistance: | ≤14μΩ.m |
| Bending strength: | ≥25MPa | Compressive strength: | ≥50MPa | Bulk densit: | ≥1.68g/cm3 |
| Ash content: | ≤0.15% |
Packaging & Delivery
| Packaging Details: | woden case for SiC graphite crucible china graphite crucible |
| Delivery Detail: | within 20 days |
Introduction
1. Graphite crucible can be used for non-ferrous metal smelting and casting, dissolving gold
or silver ornaments, analysis of special type steel, sintering hard metal.
2. graphite crucible for smelting gold is specialized in melting gold in headgear and jewelryindustry. That requests graphite material has high density and purity, ablation-resistance, and it can be used many times. We can machine various crucibles accordingto customer's requirement.
3. Machined from high pure graphite and widely used in the gold,silver,platinum and other noble metal's melting.If it's used in oxygen atmosphere,it wil start to be oxygenized when the temperature is higher than 700-800°c. If it's used in the protective atmosphere, it can stand more than 2000°c.
4. widely used in such fields as industrial furnaces, mono-crystalline silicon machinery, mono-crystalline silicon machinery, electron, semi-conductor, metallurgy, oil, chemistry, textile, electrical machinery, electrical equipment, electrical furnace, traffic, communication industry, medicine, etc.
Advantages
1.good thermal conductivity
2.High-temperature resistance
3. Small thermal expansion coefficient.
4.Strong corrosion resistance to acid and alkali liquid
5.Good chemical stability
Technology parameter
Item | Unit | High pure graphite | ||
baked twice | baked three time | baked four times | ||
impregnated once | impregnated twice | impregnated three times | ||
Grain size | mm | ≤325mesh | ≤325mesh | ≤325mesh |
Bulk density | g/cm3 | ≥1.68 | ≥1.78 | ≥1.85 |
Specific resistance | μΩ.m | ≤14 | ≤14 | ≤13 |
Bending strength | MPa | ≥25 | ≥40 | ≥45 |
Compressive strength | MPa | ≥50 | ≥60 | ≥65 |
Ash content | % | ≤0.15 | ≤0.1 | ≤0.05 |
We accept small orders,please inquiry us freely. | ||||
Item | Unit | Fine-grain Specialty Graphite model 1 | Fine-grain Specialty Graphite model model2 | ||
Guarantee value | Typical value | Guarantee value | Typical value | ||
Max grain size | mm | 0.8 | 0.8 | 0.8 | 0.8 |
Bulk density | g/cm3 | ≥1.70 | 1.73 | ≥1.73 | 1.76 |
Specific resistance | μΩ.m | ≤8.5 | 7.5 | ≤8.0 | 7 |
Bending strength | MPa | ≥10.0 | 11 | ≥12.0 | 12.5 |
Compressive strength | MPa | ≥24.0 | 27 | ≥31.0 | 34 |
Thermal Condcutivity | W/(m.k) | ≥120 | 150 | ≥130 | 160 |
C.T.E.(100-600) °C | 10-6/°C | ≤2.5 | 2.2 | ≤2.5 | 2.1 |
Ash content | % | ≤0.3 | 0.09 | ≤0.3 | 0.09 |
We are always avliable to service you! | |||||
Parts sizes of graphite crucible table
Product name | Dimensions(mm) | Weight(g) | |||
Φ1 | Φ2 | Φ3 | H | ||
1 kg graphite crucible | 58 | 47 | 35 | 88 | 160 |
2kg graphite crucible
| 65 | 58 | 44 | 110 | 240 |
2.5kg graphite crucible
| 65 | 58 | 44 | 126 | 300 |
3kg graphite crucible
| 85 | 75 | 60 | 105 | 390 |
4kg graphite crucible
| 85 | 75 | 60 | 130 | 500 |
4kg graphite crucible
| 85 | 75 | 60 | 136 | 500 |
5kg graphite crucible
| 100 | 89 | 69 | 130 | 700 |
5.5kg graphite crucible
| 105 | 90 | 70 | 156 | 800 |
6kg graphite crucible
| 110 | 97 | 79 | 174 | 970 |
We have all kinds of sizes graphite crucibles in stock,please feel free to contact us. | |||||
packaging & shipping
Packaging
1. For each type, we can send you the detailed high-resolution pictures since we have the sample in our hand.
2. For packaging, we have the professional packaging starff, pls. don't worry about the shipping.
Our service
1.Delivery time is 5~7 days for sample and 15 working days for bulk order;
2. Strong production capacity and strict quality control system;
3. Your inquiry and problems related to our products or prices will be replied in 24 hours;
4. Well-trained and experienced staffs to answer all your inquires;
5. After-sale tracking service for all of our clients;
6. OEM is available; small quantities, mixed bulk orders are also welcome;
7. Payment: L/C, D/A, D/P, T/T, Paypal , Western Union, MoneyGram;
8. Delivery way: UPS, DHL, TNT, FEDEX, EMS, CHINA POST.
After-Sales Service
1.1year warranty for most of our products;
2.We will arrange delivery of the goods on time:
3.Within the warranty period, we will bear all the qulity problem of our produts;
4.Beyond the warranty period, we will despatch the replacement parts to help fix the products;
5.Without any problem, we will gain the feedbacks of our products to help improve better products.
FAQ
Q:How to get in touch with us?
A:You can clik "Contact Supplier" above, or click "Chat Now!". We provide 24-hour service!
Q: How can I get free samples?
A: Only carbon brush for power tools/automobiles/motorcycle----no more than 4 sets for each model is free of charge.
Q:How to order?
A:Quotation→Price comfirming→Sign a contract→Mass production→Delivery
Q:How to pay?
A:30% T/T deposit.→70% balance by T/T against B/L copy.
Q:How to get after-sales service?
A:You can contact with your appointed sales.
You can also get in touch with our Quality Assurance Department: zdatzddt.com
Company Information
Other refractory materials for High temperature industry
- Q: Can graphite crucibles be used for precious metal refining?
- Yes, graphite crucibles can be used for precious metal refining. Graphite crucibles are commonly used in the metallurgical industry due to their high temperature resistance and chemical inertness. They can withstand the intense heat required for the refining process and prevent contamination of the precious metals.
- Q: Can graphite crucibles be used for semiconductor manufacturing?
- No, graphite crucibles cannot be used for semiconductor manufacturing.
- Q: Are graphite crucibles suitable for melting radioactive materials?
- No, graphite crucibles are not suitable for melting radioactive materials. Graphite crucibles are commonly used for melting non-reactive substances like metals and alloys, but they are not designed to handle radioactive materials. Radioactive materials can release harmful radiation, which can potentially react with or contaminate the graphite crucible. Therefore, special crucibles made from materials that are resistant to radiation, such as ceramics or refractory metals, should be used for melting radioactive materials to ensure safety and prevent contamination.
- Q: How to improve the service life of graphite crucible
- From the product point of view:1., raw materials are chosen from natural graphite to ensure that the graphite is not easily oxidized;2. cold isostatic pressing process is adopted to ensure high density and strength of crucible;3., the crucible surface high temperature, low temperature protection glaze layer, isolated oxygen and graphite contact contact;From the production point of view:1., scientific warming, to prevent cold, hot;2. add proper and proper amount of refining agent;3. do not stop the furnace abnormally;
- Q: Are there any safety concerns associated with using graphite crucibles?
- Using graphite crucibles comes with certain safety concerns. To begin with, graphite crucibles can reach high temperatures when used in applications involving melting metals. Mishandling them can result in burns. It is crucial to wear appropriate protective gear, such as heat-resistant gloves and clothing, when working with hot graphite crucibles. Moreover, graphite can release fine particles or dust during use or manipulation. Inhaling graphite dust can be harmful to the respiratory system, especially when exposed for extended periods or in high concentrations. It is advisable to work in a well-ventilated area or use respiratory protection, like masks, to minimize the risk of inhalation. In addition, graphite crucibles can react with certain chemicals or substances, especially strong oxidizers. This can lead to chemical reactions that may potentially cause fires or explosions. It is essential to be aware of the compatibility of graphite crucibles with the materials being handled and to handle them accordingly to prevent any hazardous reactions. Lastly, graphite crucibles can be fragile and easily break if mishandled or exposed to sudden temperature changes. Broken crucibles can have sharp edges or fragments that can cause injuries if not handled carefully. Overall, although graphite crucibles are widely used and generally considered safe, it is crucial to be aware of and address these safety concerns to ensure safe handling and minimize potential risks.
- Q: How do you determine the appropriate crucible material for a specific application?
- To ascertain the suitable crucible material for a particular application, one must take into account several factors. First and foremost, it is crucial to assess the temperature range of the application. Different crucible materials possess varying temperature limitations. For applications that involve high temperatures, materials like graphite or refractory metals such as tungsten or molybdenum might be appropriate. Conversely, for applications with lower temperatures, materials like porcelain or alumina may suffice. Secondly, one should evaluate the chemical compatibility between the crucible material and the substances employed in the application. Certain materials may react with specific chemicals or gases, resulting in contamination or deterioration of the crucible. Therefore, it is imperative to choose a material that is chemically inert or resistant to the substances utilized. Thirdly, consideration should be given to the thermal conductivity and thermal shock resistance of the crucible material. Some applications necessitate rapid heating and cooling cycles, which can subject the crucible to thermal stress. In such cases, materials with high thermal shock resistance, such as quartz or boron nitride, may be more suitable. Furthermore, the mechanical strength and durability of the crucible material should be taken into account. Certain applications involve mechanical forces, stirring, or pouring of molten materials, which can impose physical stress on the crucible. Materials like silicon carbide or stainless steel exhibit good mechanical strength and can withstand such conditions. Lastly, the cost and availability of the crucible material should be considered. While certain materials, like platinum or iridium, offer exceptional performance, they can be expensive and challenging to procure. Thus, striking a balance between performance and cost-effectiveness is important. In conclusion, determining the appropriate crucible material for a specific application necessitates careful consideration of factors such as temperature range, chemical compatibility, thermal conductivity and shock resistance, mechanical strength, and cost. By thoroughly evaluating these factors, one can select a crucible material that will effectively meet the requirements of the application.
- Q: Can quartz ceramic crucibles instead of graphite crucibles?
- Graphite heat resistance is much higher than that of quartz ceramics; graphite can be more than 2000, while the highest resistant quartz ceramics 1700 degrees.
- Q: How does the erosion resistance of graphite affect the performance of a crucible?
- The erosion resistance of graphite plays a significant role in determining the performance of a crucible. Graphite is known for its excellent erosion resistance, which refers to its ability to withstand the wearing away or gradual destruction caused by various factors such as heat, chemicals, and mechanical forces. In the context of a crucible, which is a vessel used for melting and holding substances at high temperatures, erosion resistance is crucial for maintaining the integrity and longevity of the crucible. The erosion resistance of graphite ensures that the crucible can withstand the harsh conditions it is exposed to during the melting process. Firstly, the erosion resistance of graphite helps to prevent the crucible from deforming or cracking under high temperatures. Graphite has a high melting point and can withstand extreme heat, which makes it an ideal material for crucibles. Without erosion resistance, the crucible would be prone to thermal shock, resulting in cracking or failure. Secondly, erosion resistance is important for preserving the chemical stability and purity of the crucible. Graphite is chemically inert, meaning it does not react with most substances. This property allows the crucible to hold a wide range of materials without the risk of contamination. Additionally, the erosion resistance of graphite ensures that there is minimal loss of graphite particles into the molten materials, preventing impurities from being introduced into the final product. Furthermore, the erosion resistance of graphite contributes to the crucible's durability and overall performance. Graphite crucibles are often subjected to mechanical stresses, such as stirring or pouring of molten substances. The erosion resistance of graphite prevents the crucible from wearing away or deteriorating over time, ensuring that it can be used repeatedly without compromising its functionality. In summary, the erosion resistance of graphite is crucial for the performance of a crucible. It helps to maintain the structural integrity, withstand high temperatures, preserve chemical stability, and enhance the durability of the crucible. Without erosion resistance, the crucible would be prone to failure, leading to potential contamination, loss of material, and reduced lifespan.
- Q: What is the conductivity of graphite and the conductivity of graphite?
- The conductivity and thermal conductivity are different for different grades of materials.
- Q: Can graphite crucibles be used for melting organic materials?
- No, graphite crucibles are not suitable for melting organic materials. Organic materials are typically flammable and can react with the high temperatures of the crucible, leading to combustion or contamination of the melted material. It is recommended to use crucibles made of materials like glass or ceramic for melting organic substances.
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High Temperature Melting Graphite Crucibles - SIC Grade
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 1 pc
- Supply Capability:
- 1000 pc/month
OKorder Service Pledge
OKorder Financial Service
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