Sic Graphite Crucible for Melting Metals

Sic Graphite Crucible for Melting Metals System 1

Sic Graphite Crucible for Melting Metals

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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
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
We are always avliable to service you!

Parts sizes of graphite crucible table

Product name	Dimensions(mm)				Weight(g)
Product name	Φ1	Φ2	Φ3	H	Weight(g)
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

Sic Graphite Crucible for Melting Metals

Q:How do you determine the appropriate crucible diameter for a specific application?: The appropriate crucible diameter for a specific application is typically determined by considering factors such as the desired sample size, the melting or reaction temperature, the thermal conductivity of the material being heated, and the available heating equipment. Additionally, the crucible should have sufficient room for the sample to expand during heating without overflowing. It is important to consult relevant literature, technical specifications, or seek expert advice to ensure the appropriate crucible diameter is selected for the specific application.

Q:How do you prevent overheating of a graphite crucible?: To prevent overheating of a graphite crucible, there are a few measures that can be taken: 1. Proper temperature control: It is important to carefully monitor and control the temperature of the furnace or kiln where the graphite crucible is being used. By maintaining the temperature within the recommended range, you can prevent the crucible from overheating. 2. Adequate insulation: Insulating the furnace or kiln can help regulate the temperature and prevent excessive heat transfer to the graphite crucible. Using high-quality insulation materials and ensuring proper installation can effectively reduce the risk of overheating. 3. Avoid sudden temperature changes: Rapid changes in temperature can cause thermal shock, leading to cracks or even the complete failure of the crucible. It is crucial to avoid exposing the crucible to extreme temperature variations, especially when it is already hot. 4. Proper handling and storage: Graphite crucibles should be handled with care to prevent any damage that could compromise their integrity. When not in use, they should be stored in a dry and cool environment, away from direct sunlight and sources of excessive heat. 5. Regular maintenance: Regularly inspecting the graphite crucible for any signs of wear, cracks, or damage is essential. If any issues are identified, the crucible should be replaced promptly to avoid the risk of overheating and potential accidents. By following these preventive measures, you can enhance the lifespan of the graphite crucible and minimize the risk of overheating, ensuring its optimal performance in various high-temperature applications.

Q:Can waste circuit boards be recycled?: The waste circuit board can be recycled, the PCB circuit board plating waste liquid has greater recycling value, and the PCB circuit board plating waste liquid can be saved on the comprehensive utilization, and the cost can be saved and the cost can be reduced. The comprehensive utilization of PCB plating waste liquid is not only to reduce the losses caused by the discharge, but also is of great significance from the angle of preventing pollution and reducing the cost of sewage treatment.

Q:Are graphite crucibles suitable for melting alloys with low melting points?: Yes, graphite crucibles are suitable for melting alloys with low melting points. Graphite has a high melting point, excellent thermal conductivity, and is chemically inert, making it an ideal material for use in high-temperature applications such as melting metals and alloys. Graphite crucibles can withstand the high temperatures required to melt alloys with low melting points without cracking or deforming. Additionally, graphite crucibles have good heat retention properties, allowing for efficient and uniform heating of the alloy. Therefore, graphite crucibles are commonly used in industries such as metallurgy and foundries for melting alloys with low melting points.

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:Can graphite crucibles be used for melting reactive metals?: Yes, graphite crucibles can be used for melting reactive metals. Graphite is highly resistant to heat and has excellent thermal conductivity, making it an ideal material for high-temperature applications such as melting reactive metals. Additionally, graphite is chemically inert and does not react with most metals, including many reactive ones. However, it is important to note that there are certain reactive metals, such as alkali metals or certain rare earth metals, that can react with graphite at high temperatures. In such cases, alternative crucible materials like refractory metals or ceramics may be more suitable.

Q:Can a graphite crucible be used with induction heating?: Induction heating is capable of utilizing graphite crucibles. Graphite, possessing excellent electrical conductivity and high thermal conductivity, is well-suited for induction heating. The process involves the generation of electrical currents within the crucible through an electromagnetic field, consequently producing heat due to material resistance. Graphite crucibles are capable of enduring high temperatures, making them commonly applied in various high-temperature processes, including the melting of metals and alloys. However, it is crucial to consider the design and composition of the graphite crucible to guarantee compatibility with the specific application requirements and the induction heating system.

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.

Q:Why are there too many impurities in the gravity casting products of aluminum alloy, so they can not be welded well by argon arc welding?: The filter is not added in the casting process, some slag ran in, leading to the casting surface or internal slag, leakage or air pressure testing, due to impurities, argon arc welding welding is up to where there is always staying, not fusion. The solution, first of all to choose high purity aluminum ingots, some rural plant products do not choose, are turning or cutting scrap materials in investment, not too many impurities; secondly in the casting process, increase to two times to minimize the filtering impurities.

Q:How do you determine the appropriate crucible stirring rod for a specific application?: To determine the appropriate crucible stirring rod for a specific application, several factors need to be considered. First, you need to assess the type of material being stirred in the crucible. Different materials may require different types of stirring rods to ensure efficient mixing and prevent contamination. For example, if you are stirring a corrosive substance, you would need to choose a stirring rod made from a material that is resistant to corrosion, such as stainless steel or PTFE (polytetrafluoroethylene). Secondly, the size and shape of the crucible should be taken into account. The stirring rod should be long enough to reach the bottom of the crucible and should have a shape that allows for effective stirring without causing excessive splashing or turbulence. Furthermore, the temperature and pressure conditions of the application should be considered. High temperatures or pressures may require the use of stirring rods made from heat-resistant materials, such as quartz or ceramic. Lastly, the specific requirements of the experiment or process should also be considered. If precision and accuracy are crucial, you may need to choose a stirring rod with a specific shape or design that allows for precise control of the mixing process. In summary, selecting the appropriate crucible stirring rod for a specific application involves considering the type of material being stirred, the size and shape of the crucible, the temperature and pressure conditions, and the specific requirements of the experiment or process. By carefully evaluating these factors, you can choose a stirring rod that ensures effective mixing and optimal results.

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