SiC Graphite Crucibles with Good Quality for Metallurgy

SiC Graphite Crucibles with Good Quality for Metallurgy System 1

SiC Graphite Crucibles with Good Quality for Metallurgy System 2

SiC Graphite Crucibles with Good Quality for Metallurgy System 3

SiC Graphite Crucibles with Good Quality for Metallurgy

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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

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

SiC Graphite Crucibles with Good Quality for Metallurgy

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
Item	Unit	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
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

SiC Graphite Crucibles with Good Quality for Metallurgy

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.

Other Products

SiC Graphite Crucibles with Good Quality for Metallurgy

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.

Welcome to visit our factory.^_^

Q:How do you ensure proper sealing of a graphite crucible?: To ensure proper sealing of a graphite crucible, it is important to follow these steps: 1. Clean the crucible: Thoroughly clean the graphite crucible using a brush or cloth to remove any debris or impurities that could affect the seal. 2. Inspect the crucible: Carefully examine the crucible for any cracks, chips, or other damages that could compromise the seal. If any defects are found, it is best to replace the crucible. 3. Apply a sealant: Use a suitable sealant, such as graphite powder or a high-temperature adhesive, to create a tight seal between the lid and the crucible. Apply the sealant evenly along the contact surface to ensure a proper bond. 4. Secure the lid: Place the lid on the crucible and make sure it aligns correctly. Apply gentle pressure to ensure a tight fit. If the crucible has clamps or screws, tighten them according to the manufacturer's instructions. 5. Preheat the crucible: Before using the crucible, it is essential to preheat it gradually to allow the sealant to cure properly. Follow the recommended preheating process provided by the crucible manufacturer. By following these steps, you can ensure the proper sealing of a graphite crucible, minimizing the risk of any leaks or contamination during its use.

Q:How do you prevent graphite crucibles from thermal shock during use?: To prevent graphite crucibles from thermal shock during use, it is important to preheat them gradually before exposure to high temperatures. This can be done by placing the crucible inside the furnace and slowly increasing the temperature over a period of time. Additionally, it is crucial to avoid sudden temperature changes, such as placing a hot crucible directly on a cold surface or immersing it in cold water immediately after use. By following these precautions, the risk of thermal shock and potential damage to the crucible can be minimized.

Q:How do you prevent contamination from the graphite crucible during melting?: To minimize contamination from the graphite crucible during the melting process, several steps can be taken: 1. Thoroughly clean the graphite crucible before each use. This involves removing any leftover materials from previous melts, such as slag or impurities, using an appropriate cleaning agent or solvent. It is crucial to ensure that the crucible is completely dry before proceeding to the next step. 2. Apply a protective coating to the graphite crucible to prevent contamination. This can be achieved by using boron nitride or other suitable coatings, which create a barrier between the molten material and the crucible. Not only does this coating prevent the crucible from reacting with the melt, but it also facilitates easy removal of the solidified material. 3. Prior to adding the material to be melted, it is recommended to preheat the graphite crucible. This helps eliminate any remaining moisture or contaminants that may be present, thereby reducing the risk of contamination during the melting process. 4. Handle the graphite crucible with care while melting to avoid introducing contaminants. The use of appropriate tools like tongs or gloves can prevent direct contact with the crucible, therefore preventing contamination from oils, greases, or other substances present on the hands. 5. In certain cases, it may be beneficial to conduct the melting process in a controlled atmosphere to prevent contamination. This can be achieved by employing an inert gas, such as argon or nitrogen, to create a protective atmosphere around the crucible. This safeguards against oxidation or reaction with the crucible material. By adhering to these preventive measures, the risk of contamination from the graphite crucible during the melting process can be minimized, ensuring the purity and integrity of the resulting melt.

Q:Can a graphite crucible be used for ceramic coating applications?: No, a graphite crucible cannot be used for ceramic coating applications. Graphite is a highly conductive material and can react with certain chemicals used in ceramic coating processes, resulting in contamination of the coating material. Additionally, graphite has a relatively low melting point compared to ceramic coating temperatures, which may cause the crucible to degrade or fail during the coating process. It is recommended to use crucibles made of materials specifically designed for ceramic coating applications, such as alumina or silica. These materials have higher melting points and are chemically inert, ensuring the integrity of the ceramic coating process.

Q:Can graphite crucibles be used for melting and casting of non-ferrous metals?: Yes, graphite crucibles can be used for melting and casting of non-ferrous metals. Graphite crucibles are widely used in various industries, including foundries and metalworking, for their excellent thermal conductivity and resistance to high temperatures. Non-ferrous metals, such as aluminum, copper, zinc, and gold, have lower melting points compared to iron and steel, making them suitable for melting in graphite crucibles. The high thermal conductivity of graphite helps to evenly distribute heat throughout the crucible, ensuring efficient melting and casting of non-ferrous metals. Additionally, graphite crucibles have good chemical resistance and low reactivity with non-ferrous metals, which further enhances their suitability for this application. However, it is important to note that graphite crucibles may not be suitable for certain reactive or corrosive metals, as they can react with graphite and affect the quality of the casting.

Q:Can a graphite crucible be used for aluminum melting?: Yes, a graphite crucible can be used for aluminum melting. Graphite is a commonly used material for crucibles due to its high melting point, thermal conductivity, and resistance to chemical attack. It can withstand the high temperatures required for melting aluminum, which typically range from 660°C to 700°C (1220°F to 1290°F). Additionally, graphite crucibles have good thermal shock resistance, allowing them to handle the rapid temperature changes associated with the aluminum melting process. However, it is important to note that graphite crucibles may oxidize at high temperatures, leading to the formation of a graphite oxide layer on the crucible's surface. This oxide layer can affect the purity of the melted aluminum. Therefore, it is advisable to use a new or properly cleaned graphite crucible to minimize any potential contamination.

Q:Is the jade pressed by the machine natural?: Artificial jade, like artificial diamond, is a kind of natural gem product made by artificial simulation of natural gem. It has certain characteristics of natural gem. Emerald is based on the super bedrock rock are widely distributed, actinolite glaucophane schist and chlorite schist, high temperature and ultra high pressure on the geological environment in the formation of the process of imitation jade. It can be roughly divided into two steps.

Q:Does a graphite crucible react with any substances during use?: During use, a graphite crucible does not undergo any reactions with substances. Graphite is chemically inactive and possesses a high melting point, rendering it perfect for high-temperature applications such as metal melting. It does not interact with the materials being melted or any other substances present within the crucible. This characteristic of graphite permits the secure and effective handling of diverse substances when carrying out processes like metal casting, glass melting, or chemical reactions.

Q:Why is the crucible burned and then black, oxidized, chemically?: The burning of incomplete carbon is attached, I think. Candles, for example, often do.

Q:Can graphite crucibles be used for rapid thermal cycling?: Yes, graphite crucibles can be used for rapid thermal cycling. Graphite has excellent thermal conductivity and high heat resistance, making it suitable for rapid temperature changes. This means that graphite crucibles can withstand the rapid heating and cooling required for thermal cycling processes. Additionally, graphite has a low coefficient of thermal expansion, which means it has minimal dimensional changes during temperature variations, making it ideal for repetitive thermal cycling.

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