SiC Crucibles For Melting Aluminium And Copper, Brass

SiC Crucibles For Melting Aluminium And Copper, Brass System 1

SiC Crucibles For Melting Aluminium And Copper, Brass System 2

SiC Crucibles For Melting Aluminium And Copper, Brass System 3

SiC 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

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 Crucibles For Melting Aluminium And Copper, Brass

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.

We can supply the products according to customer's drawings, samples and performance requirement.

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SiC Crucibles For Melting Aluminium And Copper, Brass

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 melting magnetic materials?: Using a different grammatical structure and expressions: It is not possible to use a graphite crucible for melting magnetic materials. Graphite, being a non-magnetic substance, lacks the capacity to create or maintain a magnetic field. Consequently, it is unsuitable for melting magnetic materials as it cannot effectively engage with or confine them.

Q:Can graphite crucibles be used for melting rare earth metals?: Yes, graphite crucibles can be used for melting rare earth metals. Graphite has high temperature resistance and excellent thermal conductivity, making it suitable for melting and holding various metals, including rare earth elements, at elevated temperatures. Additionally, graphite crucibles have good chemical stability and low reactivity, which prevents contamination of the molten metal.

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:Disadvantages of graphite crucibles: Single crystal furnace graphite crucible defects: relatively high prices, easy to wear, the general service life of about 40 stoves

Q:Can a graphite crucible be used for metal powder sintering?: Yes, a graphite crucible can be used for metal powder sintering. Graphite crucibles are commonly used in high-temperature applications, such as melting or sintering metals, due to their excellent thermal conductivity and resistance to thermal shock. The graphite material is able to withstand the high temperatures required for metal powder sintering, allowing for effective and efficient sintering processes. It is important to note that the specific graphite crucible used should be chosen based on the type of metal being sintered, as certain metals may react with graphite at high temperatures. Additionally, proper handling and maintenance of the crucible is necessary to ensure its longevity and performance during the sintering process.

Q:Is it possible to repair a cracked or damaged graphite crucible?: Yes, it is possible to repair a cracked or damaged graphite crucible. However, the success of the repair depends on the extent and location of the damage. Graphite crucibles are typically repaired using a specialized graphite repair compound or paste. This compound is applied to the cracked or damaged area and then heated to cure and bond with the existing graphite material. The repaired crucible can then be used again for various high-temperature applications. It is important to note that the repair process may not always be successful, especially if the damage is severe or if the crucible has been compromised in a critical area. In such cases, it may be necessary to replace the crucible to ensure the integrity and safety of the process.

Q:Can a graphite crucible be used for ceramic molding?: Using a graphite crucible for ceramic molding is not possible. Graphite crucibles are mainly designed for melting and holding metals and alloys at high temperatures. They lack the necessary properties to endure the high temperatures required for ceramic firing and molding procedures. The firing process in ceramic molding usually involves temperatures ranging from 1000 to 1600 degrees Celsius, which can result in the degradation, cracking, or melting of graphite crucibles. To successfully carry out ceramic molding, it is advisable to utilize crucibles made from materials like alumina, zirconia, or other refractory substances that can withstand the extreme temperatures involved in the ceramic firing process.

Q:What is the aluminum crucible?: Generally low melting point metal, penetration is relatively strong, so in the middle frequency smelting aluminum and aluminum alloy, should choose good crucible material

Q:Can graphite crucibles be used for metal powder sintering?: Yes, graphite crucibles can be used for metal powder sintering. Graphite is a commonly used material for crucibles due to its high melting point, chemical inertness, and thermal conductivity. Metal powder sintering involves heating the powder to a high temperature to bond the particles together, and graphite crucibles are able to withstand these high temperatures without reacting with the metal powders. Additionally, graphite crucibles have good thermal conductivity, which helps to evenly distribute heat and ensure uniform sintering of the metal powder. Therefore, graphite crucibles are a suitable choice for metal powder sintering processes.

Q:When decomposing iron ore, why should it be carried out at low temperature?: The commonly used acid decomposition method is as follows:(1) hydrochloric acid decomposition of iron ore can generally be heated by hydrochloric acid decomposition, iron silicate soluble in hydrochloric acid, can add a little hydrofluoric acid or ammonium fluoride, the sample is completely decomposed. The dissolution rate of magnetite is very slow, add a few drops of stannous chloride solution, the decomposition speed is.(2) sulfuric acid hydrofluoric acid decomposition sample, in the platinum crucible and the plastic crucible, adds 1:1 sulfuric acid 10 drops, hydrofluoric acid 4-5ml, the low temperature heats up, when will emit three oxidation two sulfur white smoke, extracts with hydrochloric acid.(3) when sulfuric acid or sulfur phosphorus mixed acid (1:2) dissolves, the ore needs to be heated until the water is completely evaporated, and the white smoke of three sulfur trioxide is added, and then heated for several minutes. But the heating time should not be too long to prevent the formation of pyrophosphate.

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