Sic Graphite Crucible for melting ALuminum
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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: How to break 40 low carbon steel smelting
- Only by argon arc welding in small diameter pipes, piping, is a commonly used method for ITU argon welding section, then replace the consumption of electrode for welding wire, ultra low carbon in the coefficient multiplied by 1.15.
- Q: What are the main components of a graphite crucible?
- Engine cylinder head, brake, air filter, piston, radiator, steering wheel frame, and shell of mobile phone in electronic product, etc..The graphite crucible also needs attention when it is used: because the bottom of the crucible is very small, the crucible needs to be put on the graphite pad or the clay triangle when it is heated. The graphite crucible can be heated directly and can not be cooled immediately after heating and removed with a crucible clampDo not put it on the cold metal table to prevent it from breaking due to rapid cooling. Notice that the above points will extend the life of the graphite crucible.
- Q: What are the different methods of monitoring the melting process in a graphite crucible?
- There are several methods available for monitoring the melting process in a graphite crucible. These methods can provide valuable information about the temperature, consistency, and progress of the melting process. 1. Visual Inspection: One of the simplest methods is to visually inspect the melting process. This can be done by observing the color, consistency, and movement of the materials being melted. For example, if the materials are turning into a liquid state and flowing smoothly, it indicates that the melting process is progressing as expected. 2. Thermocouples: Thermocouples are widely used for temperature measurement in various industrial processes, including melting in graphite crucibles. These devices consist of two different metals joined together at one end. By measuring the voltage difference between the two ends, the temperature can be determined. Thermocouples can be inserted into the crucible or placed near it to monitor the temperature accurately. 3. Infrared Pyrometers: Infrared pyrometers are non-contact temperature measurement devices that use infrared radiation to determine the temperature of an object. They can be used to monitor the temperature of the graphite crucible during the melting process without physically touching it. Infrared pyrometers provide quick and accurate temperature readings. 4. Optical Emission Spectroscopy (OES): OES is a technique that analyzes the light emitted by the materials being melted to determine their composition and temperature. By analyzing the spectral lines and intensities of the emitted light, OES can provide valuable information about the melting process, including temperature and the presence of impurities or alloying elements. 5. Pressure Measurement: Monitoring the pressure inside the graphite crucible can also be an indicator of the melting process. As the materials melt and vaporize, the pressure inside the crucible may increase. Pressure sensors can be employed to measure the pressure changes during the melting process, providing insight into the progress of the melting and the behavior of the materials. These methods can be used individually or in combination to monitor the melting process in a graphite crucible. By employing one or more of these techniques, operators can ensure that the melting process is proceeding as intended and make any necessary adjustments or interventions to maintain optimal conditions.
- Q: What are the different methods of preheating a graphite crucible?
- Preheating a graphite crucible can be done using various methods, depending on specific requirements and available equipment. Here are some commonly used techniques: 1. Induction Heating: An electromagnetic field is generated by an induction coil, rapidly heating the graphite crucible. Known for its efficiency and quick heating capabilities, induction heating is widely employed. 2. Resistance Heating: By passing an electric current through the graphite crucible, heat is generated due to the resistance encountered by the crucible material. Specialized resistance heating elements or wires are needed for this method. 3. Gas Flame Heating: Placing the graphite crucible over a gas burner or torch gradually raises its temperature using the heat from the flame. This method is commonly employed in smaller-scale applications or situations where electricity is not readily accessible. 4. Electric Furnace Heating: Electric furnaces are specifically designed for heating crucibles. The crucible is placed inside the furnace, which generates heat through resistance heating elements. This method offers controlled and uniform heating, making it suitable for precise temperature requirements. 5. Microwave Heating: In specific cases, microwaves can be utilized to preheat graphite crucibles. This method utilizes microwave radiation to generate heat within the crucible. However, it requires specialized equipment capable of withstanding high temperatures and is not as commonly used as other methods. It should be noted that the choice of preheating method depends on factors such as crucible size, desired heating rate, and availability of specific equipment. Proper preheating ensures that the graphite crucible reaches the required temperature before being used for applications such as metal melting, chemical reactions, or thermal analysis.
- Q: How does the porosity of graphite affect the performance of a crucible?
- The porosity of graphite affects the performance of a crucible in several ways. Firstly, the porosity of graphite determines the crucible's ability to withstand high temperatures. A more porous graphite crucible will have a higher resistance to thermal shock, meaning it can withstand rapid changes in temperature without cracking or breaking. This is important in applications where the crucible is exposed to extreme heat, as it ensures the crucible remains intact and does not compromise the integrity of the material being heated. Secondly, the porosity of graphite also affects the crucible's ability to retain heat. A more porous crucible will have a larger surface area, allowing it to absorb and retain heat for longer periods. This is beneficial in applications where consistent and prolonged heating is required, as the crucible can provide a more stable temperature environment for the material being processed. Furthermore, the porosity of graphite can also influence the crucible's resistance to chemical corrosion. A more porous crucible allows for better diffusion of chemicals, reducing the risk of chemical reactions occurring on the surface of the crucible that could degrade its performance. This is particularly important in industries such as metallurgy or chemistry, where corrosive substances are commonly used. Overall, the porosity of graphite plays a significant role in determining the performance of a crucible. It affects its thermal shock resistance, heat retention capabilities, and resistance to chemical corrosion. Therefore, selecting a crucible with the appropriate porosity is crucial in ensuring optimal performance and longevity in various high-temperature applications.
- Q: Can graphite crucibles be used for ceramic production?
- No, graphite crucibles cannot be used for ceramic production. Ceramic production requires crucibles made from materials like alumina or zirconia, which can withstand high temperatures and provide a stable environment for the ceramic materials. Graphite crucibles are generally used for high-temperature applications involving metals and alloys.
- Q: How to calculate the loss of aluminum slag melting?
- 50-70% or so, the yield is ok. Smelting aluminum ingot can be complex, simple, look at the investment, the most simple coke furnace, a graphite crucible on the line, slow fire simmer.
- Q: What is graphite?
- Graphite is a carbon crystal, is a non-metallic materials, color silver gray, soft, with a metallic luster. Mohs hardness is 1~2, specific gravity 2.2~2.3, and its bulk density is generally 1.5~1.8.The high melting point of graphite, trend began to soften under vacuum to 3000 DEG C when the melting state, up to 3600 degrees Celsius began when the evaporation of graphite sublimation, the general strength of materials under high temperature gradually decreased, while the graphite in the heating to 2000 DEG C, rather than the room temperature strength is doubled, but the oxidation resistance of graphite poor performance with temperature increased oxidation rate increased.Graphite has a fairly high thermal conductivity and conductivity, its conductivity is 4 times higher than stainless steel, 2 times higher than carbon steel, 100 times higher than ordinary non-metallic. Its thermal conductivity is not only more than steel, iron, lead and other metal materials, and with the rise in temperature, thermal conductivity decreases, which is different from the general metal materials, at very high temperatures, graphite and even tend to adiabatic state. Therefore, the heat insulation properties of graphite are very reliable under ultra high temperature.
- Q: How do you prevent thermal shock in graphite crucibles?
- To prevent thermal shock in graphite crucibles, there are several key steps that can be taken: 1. Preheating: Before using a graphite crucible, it is important to preheat it gradually. This can be done by placing the crucible in a furnace or kiln at a low temperature and slowly increasing the temperature over a period of time. This ensures that the crucible is uniformly heated and minimizes the risk of sudden temperature changes. 2. Avoiding rapid temperature changes: Graphite crucibles should be handled with care to prevent sudden temperature changes. They should not be exposed to extreme heat or cold, as this can cause thermal shock. Similarly, they should not be placed directly onto a hot surface or immersed in cold water immediately after use. 3. Proper handling and storage: Graphite crucibles should be stored in a dry and controlled environment to prevent moisture absorption, which can lead to thermal shock. Care should be taken when handling crucibles to avoid dropping or banging them against hard surfaces, as this can also cause thermal shock. 4. Adequate cooling: After use, graphite crucibles should be allowed to cool naturally and slowly. Placing a hot crucible in a cool environment or exposing it to a sudden temperature change can result in thermal shock. It is recommended to place the crucible on a non-conductive surface and allow it to cool at room temperature before further handling. 5. Regular inspection: Regularly inspecting graphite crucibles for any signs of damage or wear is crucial. Any cracks, chips, or other abnormalities should be addressed immediately, as they can weaken the crucible and increase the risk of thermal shock. If any damage is detected, it is advisable to replace the crucible to ensure its integrity during future use. By following these preventive measures, thermal shock in graphite crucibles can be minimized, resulting in improved durability and performance.
- Q: What magnetic material is sintered with large corundum crucible?
- But the chemical stability is good, not in vacuum. Corundum, by contrast, is much cheaper.
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Sic Graphite Crucible for melting ALuminum
- 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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