SiC Graphite Crucibles For Melting Aluminium And Copper, Brass
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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 For Melting Aluminium And Copper, Brass
| 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 |
Super Quality Long Working Life 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 of graphite crucible:
The crucible is an utensil or melting tank vessels that is made of refractory material (such as clay, graphite, quartz or difficult molten metal iron, etc.).
Graphite crucible, with is special advantages and Plasticity, is widely used in the smelting area, e.g. gold smelting, silver smelting, aluminum smelting, cooper smelting, etc.
high pure graphite | ||||
Item | Unit | baked twice | baked three time | baked four times |
impregnated once | impregnated twice | impregnated three times | ||
grain size | mm | ≤325μm | ≤325μm | ≤325μm |
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 |
Fine-grain Specialty Graphite FXG-1 | Fine-grain Specialty Graphite FXG-2 | ||||
Item | Unit | 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 |
NO | Top diameter | Bottom diameter | Height | Tolerance | Capacity(Kg5%) |
2 | 90 | 50 | 55 | 2 | 0.3 |
3 | 105 | 80 | 93 | 2 | 0.5 |
4 | 102 | 80 | 100 | 2 | 0.6 |
5 | 112 | 82 | 130 | 2 | 0.8 |
6 | 120 | 82 | 141 | 2 | 0.9 |
8 | 138 | 90 | 153 | 2 | 1.2 |
12 | 148 | 100 | 181 | 2 | 1.8 |
16 | 156 | 110 | 190 | 2 | 2.3 |
20 | 180 | 120 | 230 | 2 | 3 |
25 | 186 | 128 | 248 | 2 | 3.7 |
Packaging & Shipping
Package: Wooden case and wooden pallet or pack as customer's requirement of graphite crucible.
Delivery time: depend on distance, usually 20 days to 50days after deposit of graphite crucible.
Our Services
Why choose CMAX?
High puriy material make sure high max working temperature,
Tight tolerance make sure the right installation.
Large quantity in stock ensured fast delivery.
Large capacity reduce materical prices.
Our service :
Inquiry response: Your inquiries will be replied in 24 hours.
Sample support: Two free samples are available in 3~5days.
Delivery time: Your shipment will be loaded in 15~25days.depends on quantity.
Payment term: T/T, L/C, Western Union (Sample only)
We can supply the products according to customer's drawings, samples and performance requirement.
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FAQ
1.What's your MOQ?
We will indicate the MOQ for each item in the quotation list. We accept the sample and trail order.
2.Can I negotiate the Prices?
Sure, we may consider discounts for bulk order of products.
3.How long will it take to complete my order?
For the stock items, we can arrange the shippment within 2~3days after received your payment. For the customized items, we will indicate the delivery time in the quotation list.
4.Can you give warranty of your products?
Yes, we extend a 100% satifisfaction guarantee on all items. Please feel free to provide timely feedback if you're not satisfied with N&D's Quality and Service. For the overseas orders, if there is a quality problem, please kindly to provide the picturers to show the problem by e-mail. We will provide the replacements to you at our cost according to actual conditions.
5.Can I visit you?
Sure. If you're a volume buyer and would like to visit our in-house products and production line, please contact us to make an appointment.
- Q: Can a graphite crucible be used for gold melting?
- Indeed, gold melting can be accomplished by utilizing a graphite crucible. Graphite crucibles find extensive application in diverse sectors, such as jewelry fabrication and metal casting, owing to their remarkable thermal conductivity and elevated melting point. Graphite exhibits exceptional resilience against extreme temperatures, rendering it appropriate for gold melting, given that gold possesses a comparably moderate melting point of approximately 1064 degrees Celsius (1947 degrees Fahrenheit). Furthermore, graphite crucibles exhibit no reaction with molten gold, thus guaranteeing the preservation of gold purity throughout the melting procedure.
- Q: Why is it a change of gold? Now it's black and muddy
- 1., analysis of waste liquid: first, determine whether the waste liquid contains gold. In appearance, the gold waste liquid is mostly yellow. Then do a simple experiment, take the waste liquid on a clean filter paper and dry it slowly. If it is purple, it may contain gold2. reduction of gold powder: Gold liquor into the beaker, and then heated to 80-90 deg.C under stirring slowly adding ferrous chloride (or ferrous sulfate) solution, see the color of the solution changed from yellow to brown, and gradually see gold deposits at the bottom of the beaker. The precipitation, then add two drops of liquid, such as it may be considered that the blue precipitate, gold has been completely restored. Slowly pour out the liquid, spongy precipitate at the bottom of the beaker of yellow soil is the gold powder.3. purification of gold powder: in gold powder precipitation in the adsorption of some iron compound must be removed, in order to improve the purity of gold powder. With 1:2.5 hydrochloric acid into gold powder, boil, stirring for 5 minutes, then pour lotion. So 4-5 times, to the upper acid yellow for check (pickling, careful operation, reaction not too intense, so as not to spill). Then after pickling of gold powder were carefully rinsed with distilled water several times, and not so far (acidic with pH test paper).
- Q: What are the different methods of protecting the surface of a graphite crucible?
- There are several methods of protecting the surface of a graphite crucible. One common method is to apply a protective coating such as boron nitride or silicon carbide to create a barrier between the crucible and the materials being melted. Another approach is to use a sacrificial lining made of materials like clay or refractory cement, which can be replaced periodically to protect the crucible. Additionally, using a crucible cover or lid can help prevent contamination and oxidation of the graphite surface. Regular cleaning and maintenance of the crucible is also crucial to prolong its lifespan and protect the surface from damage.
- Q: What are the differences between quartz crucibles and glass crucibles in appearance, properties, uses, etc.?
- Personally, I think that the short duration of sodium hydroxide in the quartz bottles should be no problem. As long as the inner wall is smooth, it is important to note that the stopper must not be used to grind the plug
- Q: Can a graphite crucible be used for bronze casting?
- Yes, a graphite crucible can be used for bronze casting. Graphite crucibles can withstand high temperatures and are commonly used in metal casting processes, including bronze casting. They have good thermal conductivity and are resistant to chemical reactions, making them suitable for melting and pouring bronze alloys.
- 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: How is a graphite crucible used in the production of graphite electrodes?
- The production of graphite electrodes relies heavily on the use of a graphite crucible, an indispensable tool. Industries such as steelmaking and electric arc furnaces heavily rely on graphite electrodes, making the crucible an essential component in the production process. When creating graphite electrodes, the first step involves placing the raw materials into the graphite crucible. These materials usually consist of a mixture of petroleum coke, coal tar pitch, and other additives. The crucible, made from high-quality graphite material, possesses exceptional thermal conductivity and can endure extremely high temperatures. Once loaded, the crucible is then subjected to intense heat within a furnace or electric arc furnace. As the temperature rises, the raw materials within the crucible begin to melt and react with one another, resulting in various chemical reactions. These reactions ultimately lead to the formation of a homogenous molten mass. The molten mixture is then carefully poured into molds, solidifying into the desired shape of a graphite electrode. The graphite crucible is crucial in this process for several reasons. Firstly, its high melting point allows it to contain and withstand the extreme temperatures required for melting the raw materials. Additionally, it ensures that the molten mixture remains isolated from the furnace, preventing any impurities or contaminants from compromising the quality of the final electrode. Moreover, the thermal conductivity of graphite enables efficient heat transfer, resulting in the uniform melting of the raw materials. This uniformity is vital in obtaining consistent and high-quality graphite electrodes. Lastly, the chemical inertness of graphite prevents any reactions between the crucible and the molten mixture, safeguarding the purity of the final electrode. To summarize, the graphite crucible performs a crucial role in the production of graphite electrodes. Its high melting point, thermal conductivity, and chemical inertness make it the ideal choice for melting raw materials to create high-quality graphite electrodes. These electrodes meet the strict requirements of various industries such as steelmaking and electric arc furnaces.
- Q: Medium frequency furnace plus graphite crucible does not start
- Hello, my factory is specializing in the production of graphite crucible manufacturers, medium frequency furnace dedicated graphite crucible and so on
- Q: How is a graphite crucible used in the manufacturing industry?
- A graphite crucible is an essential tool used in the manufacturing industry for various applications. Primarily, it is used for melting and holding metals and alloys at high temperatures during the casting and molding processes. The manufacturing industry often deals with materials that have high melting points, such as steel, iron, copper, and aluminum. A graphite crucible, made from a high-purity form of carbon, is able to withstand and contain these extreme temperatures without melting or reacting with the molten metal. This is due to the unique properties of graphite, including its high thermal conductivity and resistance to chemical corrosion. During the manufacturing process, the graphite crucible is placed in a furnace or other heating device, where it is heated to the desired temperature. Once the crucible reaches the appropriate temperature, the metal or alloy is added to it, allowing it to melt. The crucible acts as a container, holding the molten metal until it is ready to be poured into a mold or used for other manufacturing processes. Graphite crucibles are also commonly used for smelting and refining processes. In these applications, impurities and unwanted elements are removed from the metal by subjecting it to high temperatures in the crucible. The crucible's high thermal conductivity ensures that the heat is evenly distributed, allowing for efficient and consistent refining. Moreover, graphite crucibles are preferred in the manufacturing industry due to their durability and longevity. They can withstand repeated use at high temperatures without cracking or deteriorating. This makes them a cost-effective choice for manufacturing processes that involve continuous melting and casting. In summary, a graphite crucible is an indispensable tool in the manufacturing industry. Its ability to withstand high temperatures, resist chemical corrosion, and provide efficient heat transfer makes it ideal for melting metals and alloys, as well as for smelting and refining processes. The durability and longevity of graphite crucibles contribute to their widespread use and effectiveness in the manufacturing industry.
- Q: What is the difference between the indirect method Zinc Oxide and the direct law Zinc Oxide?
- The direct method of Zinc Oxide in a variety of zinc ore or debris as raw material. Zinc Oxide and coke in the reaction when heating is reduced into metallic zinc by the steam, and then oxidation by oxygen in the air for Zinc Oxide, Zinc Oxide to remove most of the impurities. The direct method to obtain coarse particles, the product purity was 75%-99.5%.
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SiC Graphite Crucibles For Melting Aluminium And Copper, Brass
- 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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