SIC Graphite Crucible
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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
- Q: What are the carbon elements? What are their structures? What are their properties and uses?
- At the vertex of the carbon atom and the carbon atom adjacent vertices by SP hybrid orbital overlap to form a bond, three sigma bonds each carbon atom was a pentagonal edges and two hexagonal edges. Three sigma bond of carbon atoms is not coplanar, the bond angle is about 108 degrees or 120 degrees therefore, the whole molecule is spherical. A p orbital of each carbon atom with the rest of the overlap each other to form a containing 60 pi electron closed shell electronic structure, so in the spherical cage and the cage around the pi electron cloud. Molecular orbital calculations show that footballene delocalized can greatly. In recent years, scientists have found that in addition to diamond, graphite, and some new existence in the form of element carbon. The earlier found and has made important progress in the study of the C60 molecule.
- Q: How do you prevent graphite crucibles from sticking to the melted material?
- There are several steps that can be taken to avoid the graphite crucibles from sticking to the melted material: 1. Applying a release agent: Prior to placing the material in the crucible, it is possible to apply a thin layer of a release agent to the inside surface of the crucible. This can be done either by using a brush or a spray. The purpose of the release agent is to create a barrier between the crucible and the melted material, thus preventing them from sticking together. 2. Preheating the crucible: By preheating the graphite crucible before adding the material, the chances of sticking can be reduced. Heating the crucible to a temperature slightly higher than the melting point of the material can establish a thermal barrier that prevents the material from adhering to the crucible. 3. Incorporating flux: In certain situations, the addition of flux can help prevent sticking. Flux is a chemical compound that lowers the melting point of the material and facilitates its flow. It can also function as a protective barrier between the crucible and the melted material, preventing them from sticking together. 4. Controlling the temperature: Maintaining the appropriate temperature throughout the melting process is crucial. If the temperature is too high, the material can become more reactive with the crucible, leading to sticking. Conversely, if the temperature is too low, the material may not fully melt, increasing the chances of sticking. Adhering to the recommended temperature range for the specific material being melted can help avoid sticking. 5. Properly cleaning and maintaining the crucible: It is vital to regularly clean the crucible after each use in order to prevent buildup or contamination that can result in sticking. Utilizing appropriate cleaning methods to remove any residual material or debris from the crucible is important. Additionally, inspecting the crucible for any signs of wear or damage and replacing it when necessary can help prevent sticking. By following these preventive measures, the risk of graphite crucibles sticking to the melted material can be significantly minimized, ensuring a smooth and efficient melting process.
- Q: Procedures for operating high temperature furnaces
- A, check the power line contact is goodB, check if the connection is normalC, check if the cooling water is normalD, check the tightness is normalE, prepare the necessary tools: dust-free paper, anhydrous alcohol, canvas gloves, operating gloves, masks, high temperature gloves, graphite trolley, stainless steel tray
- Q: Can a graphite crucible be used for melting steel?
- No, a graphite crucible cannot be used for melting steel. Graphite has a relatively low melting point (around 3,600 degrees Fahrenheit or 2,000 degrees Celsius), while steel requires much higher temperatures to melt (around 2,500 degrees Fahrenheit or 1,370 degrees Celsius). Thus, using a graphite crucible would result in the crucible itself melting before achieving the desired temperature to melt the steel. For melting steel, a crucible made of materials with higher melting points, such as clay-graphite or silicon carbide, would be more suitable.
- Q: Graphite crucible heat resistance, then graphite crucible can ignite? Charcoal is mainly composed of graphite, why charcoal can be ignited?
- Burning graphite under no oxygen at least 3000 degrees in the air in the ignition temperature is higher, not so high temperature of fire in the air, so the graphite can ignite. Charcoal contains carbon, hydrogen, oxygen, nitrogen containing and small amounts of other elements
- Q: Are graphite crucibles suitable for melting radioactive materials?
- Graphite crucibles, unfortunately, do not possess the suitability for melting radioactive materials. Typically, these crucibles find their application in the melting of non-reactive substances like metals and alloys. However, they lack the necessary design to handle radioactive materials. It is crucial to recognize that radioactive materials have the potential to emit harmful radiation, resulting in the potential for reactions with or contamination of the graphite crucible. Therefore, it becomes imperative to employ special crucibles manufactured from radiation-resistant materials such as ceramics or refractory metals when melting radioactive materials. This precautionary measure guarantees safety and prevents any form of contamination.
- Q: Graphite producer / graphite manufacturer / graphite enterprise brand, where is there?
- There are a lot of production of graphite materials manufacturers, such as Henan Pingdingshan Kaiyuan, Wuxing, exhausted Shi ah, abroad with the East China Sea, Japan, Roland, SGL etc.
- Q: Can a graphite crucible be used for zinc melting?
- Yes, a graphite crucible can be used for zinc melting. Graphite crucibles are known for their high melting point and excellent thermal conductivity, making them suitable for melting metals such as zinc. Graphite crucibles can withstand the high temperatures required for zinc melting without reacting or contaminating the metal. Additionally, graphite crucibles have good resistance to thermal shock, allowing them to withstand rapid temperature changes during the melting process. It is important, however, to properly clean and prepare the graphite crucible before use to ensure the purity of the melted zinc.
- Q: How does the electrical resistivity of graphite affect the performance of a crucible?
- The performance of a crucible is heavily influenced by the electrical resistivity of graphite. Graphite, known for its conductivity, exhibits a low electrical resistivity. This characteristic has multiple impacts on the crucible's performance. To begin with, the low electrical resistivity ensures that the crucible heats up efficiently. When an electric current is applied to the graphite crucible, its low resistivity allows the current to flow easily. Consequently, heat is quickly generated, which is crucial for tasks like melting metals, glass, or other materials. The crucible's efficient heating capability enables it to reach and maintain high temperatures, ensuring the successful execution of various industrial processes. Furthermore, graphite's low electrical resistivity also aids in maintaining a uniform temperature distribution within the crucible. As the current passes through the crucible, its low resistivity guarantees that heat is evenly spread across the surface. This uniform heating prevents the formation of localized hotspots or cold spots, which could result in uneven melting or reactions within the crucible. Hence, graphite's low electrical resistivity contributes to the crucible's consistent and dependable performance. Moreover, graphite's low electrical resistivity facilitates the efficient transfer of heat from the crucible to the surroundings. As the crucible heats up, its low resistivity allows for the rapid dissipation of heat, preventing excessive temperature buildup. This aspect is particularly crucial in applications where precise temperature control is necessary to prevent damage to the crucible or the processed materials. In conclusion, the electrical resistivity of graphite has a significant impact on the performance of a crucible. Its low resistivity enables efficient heating, uniform temperature distribution, and effective heat dissipation. These attributes make graphite crucibles highly sought after in various industrial applications that require high temperatures, precise temperature control, and consistent performance.
- 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 commonly used in high-temperature applications such as melting metals and alloys. In order to achieve a controlled atmosphere, various methods can be employed. One method is to use a gas purging system. This involves introducing a specific gas into the crucible to create the desired atmosphere. For example, if an inert atmosphere is required, gases like argon or nitrogen can be used to displace any oxygen or other reactive gases present. The flow rate and pressure of the gas can be controlled to maintain the desired atmosphere. Another method is to create a sealed environment around the crucible. This can be achieved by using a furnace or an induction heating system with a gas-tight enclosure. By controlling the gas composition and pressure within this enclosure, a specific atmosphere can be maintained around the crucible. Additionally, it is important to consider the crucible material itself. Graphite is known for its high thermal conductivity, which means it can transfer heat quickly. However, it can also be reactive with certain gases or metals at high temperatures. Therefore, selecting the appropriate grade of graphite and ensuring proper crucible conditioning can help maintain a controlled atmosphere. Overall, with the right equipment and techniques, it is possible to achieve a controlled atmosphere inside a graphite crucible, allowing for precise control of the environment during high-temperature processes.
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SIC 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
OKorder Financial Service
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