Sic Graphite Crucible for High Temperature

Sic Graphite Crucible for High Temperature System 1

Sic Graphite Crucible for High Temperature

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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 High Temperature

Other refractory materials for High temperature industry

Sic Graphite Crucible for High Temperature

Q:Corundum crucible and graphite crucibleSome enterprises use graphite crucibles in vacuum furnaces, while some larger ones use corundum crucibles. What I want to know is the advantages and disadvantages of corundum crucibles and graphite crucibles: Corundum temperature limited, easily cracked at high temperature. But the chemical stability is good, do not use under vacuum. In contrast, corundum is much cheaper.

Q:What are the carbon elements? What are their structures? What are their properties and uses?: C60 molecule is a molecule made up of 60 carbon atoms. It is similar to football, so it is also called "football"C60 is a stable molecule formed solely by carbon atoms. It has 60 vertices and 32 faces, of which 12 are pentagonal and 20 are regular hexagons. The relative molecular weight is about 720.

Q:How long can a graphite crucible last?: The lifespan of a graphite crucible can vary depending on several factors such as the quality of the graphite used, the type of material being melted, the temperature at which it is used, and the care and maintenance practices followed. Generally, a graphite crucible can last for several months to several years. If used for lower temperature applications or with non-reactive materials, it can have a longer lifespan. On the other hand, if used for high-temperature applications or with corrosive materials, the crucible may wear out more quickly. Over time, the repeated heating and cooling cycles, as well as exposure to different chemicals, can cause the graphite crucible to develop cracks, erosion, or other signs of wear. It is important to regularly inspect the crucible for any damage and replace it if necessary to ensure the quality and safety of the melting process. Proper care and maintenance can also extend the lifespan of a graphite crucible. This includes preheating the crucible before use, avoiding thermal shock by gradually heating and cooling the crucible, and cleaning it properly after each use. Using appropriate crucible handling tools and avoiding rough handling can also help avoid unnecessary damage. In conclusion, while there is no exact lifespan for a graphite crucible, it can last for several months to several years depending on various factors. Regular inspection, proper care, and maintenance are crucial in maximizing the lifespan and performance of the crucible.

Q:Can graphite crucibles be used for electrode production?: Yes, graphite crucibles can be used for electrode production. Graphite is an excellent material for electrodes due to its high melting point, thermal conductivity, and electrical conductivity. Graphite crucibles provide a suitable environment for melting and shaping metals to form electrodes, making them a common choice in electrode production processes.

Q:Can a graphite crucible be used for melting berkelium?: No, a graphite crucible cannot be used for melting berkelium.

Q:Can a graphite crucible be used with gas burners or torches?: Indeed, gas burners or torches can indeed be paired with a graphite crucible. Graphite crucibles are renowned for their remarkable ability to endure high temperatures and their exceptional durability, rendering them highly suitable for usage in conjunction with gas burners or torches. They exhibit an impressive resistance to extreme temperatures and are frequently employed in tasks involving the melting of metals, glass, or other substances. The exceptional thermal conductivity of graphite allows for a highly efficient transfer of heat, making it an ideal choice for applications that require exceedingly high temperatures. Nonetheless, it is of utmost importance to ensure that the crucible is appropriately sized and designed to match the specific gas burner or torch in use, in order to prevent any potential harm or safety risks.

Q:What are the different methods of monitoring the melting process in a graphite crucible?: There are various techniques available to monitor the melting process in a graphite crucible, which can offer valuable insights into the temperature, consistency, and progress of the process. 1. Visual Inspection: An uncomplicated method involves visually examining the melting process. This entails observing the color, consistency, and movement of the materials as they melt. For instance, if the materials transform into a liquid state and flow smoothly, it indicates that the melting process is proceeding as anticipated. 2. Thermocouples: Widely utilized for temperature measurement in industrial processes, thermocouples are employed for melting in graphite crucibles. These devices consist of two dissimilar metals joined together at one end. By measuring the voltage difference between the two ends, the temperature can be determined. Accurate temperature monitoring can be achieved by inserting thermocouples into or near the crucible. 3. Infrared Pyrometers: Non-contact temperature measurement devices known as infrared pyrometers utilize infrared radiation to determine an object's temperature. They can be utilized to monitor the temperature of the graphite crucible during the melting process without physical contact. Infrared pyrometers offer swift and precise temperature readings. 4. Optical Emission Spectroscopy (OES): OES is a technique that analyzes the light emitted by the melting materials to ascertain 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 within the graphite crucible can serve as an indicator of the melting process. As the materials melt and vaporize, the pressure inside the crucible may increase. Pressure sensors can be utilized to measure pressure changes during the melting process, offering insight into the progress of the melting and the behavior of the materials. These techniques can be employed individually or in combination to monitor the melting process in a graphite crucible. By utilizing one or more of these methods, 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 recommended storage conditions for graphite crucibles?: The recommended storage conditions for graphite crucibles include keeping them in a dry and cool environment, away from moisture and direct sunlight. It is essential to store them in a clean and dust-free area to prevent any contamination or damage. Additionally, it is advisable to store graphite crucibles in a vertical position to avoid any potential warping or distortion.

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:How do you prevent graphite crucibles from contaminating the melted material with carbon?: To prevent graphite crucibles from contaminating the melted material with carbon, a common approach is to apply a protective coating to the inner surface of the crucible. This coating acts as a barrier, preventing direct contact between the molten material and the graphite. Additionally, crucibles can be preheated before use to eliminate any residual impurities on the surface that could cause contamination. Regular cleaning and maintenance of the crucibles is also important to remove any carbon buildup and ensure their effectiveness in preventing contamination.

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