Sic Carbide Graphite Crucible

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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 Carbide Graphite Crucible

Other refractory materials for High temperature industry

Sic Carbide Graphite Crucible

Q:What are the carbon elements? What are their structures? What are their properties and uses?: At the vertex of the carbon atom and the carbon atom adjacent vertices by SP hybrid orbital overlap to form a bond, three sigma bonds each carbon atom was a pentagonal edges and two hexagonal edges. Three sigma bond of carbon atoms is not coplanar, the bond angle is about 108 degrees or 120 degrees therefore, the whole molecule is spherical. A p orbital of each carbon atom with the rest of the overlap each other to form a containing 60 pi electron closed shell electronic structure, so in the spherical cage and the cage around the pi electron cloud. Molecular orbital calculations show that footballene delocalized can greatly. In recent years, scientists have found that in addition to diamond, graphite, and some new existence in the form of element carbon. The earlier found and has made important progress in the study of the C60 molecule.

Q:Who is the melting point of graphite and diamond?: When material melts, molecular crystals need to destroy intermolecular forces; atomic crystals need to destroy covalent bonds; ionic crystals need to destroy ionic bonds; metal crystals need to destroy metal bonds. The stronger the bond, the higher the energy required for the breaking key, the higher the melting point.

Q:Can a graphite crucible be used for melting thorium?: Indeed, a graphite crucible proves quite useful when it comes to melting thorium. These crucibles find extensive application in scenarios involving high temperatures, such as the melting of metals and alloys. Notably, thorium exhibits a relatively low melting point of 1,750 degrees Celsius, a temperature comfortably within the range that graphite crucibles can endure. The exceptional thermal conductivity and ability to withstand high temperatures are attributes well-associated with graphite crucibles, rendering them ideal for the melting and manipulation of diverse metals and alloys, including thorium.

Q:What are the advantages of a graphite furnace atomizer compared to a flame atomizer?: Flame atomizer: it consists of three parts: sprayer, premixing chamber and burner. Features: easy operation and good reproducibility.

Q:How to reduce the degree of oxidation of graphite when sintering at high temperature?: Proper flux and refining time should be smooth, without damaging the oxide film on the melt surface and covering the graphite plate melt at the right time;

Q:What magnetic material is sintered with large corundum crucible?: But the chemical stability is good, not in vacuum. Corundum, by contrast, is much cheaper.

Q:Can graphite crucibles be used for melting brass?: Yes, graphite crucibles can be used for melting brass. Graphite is a commonly used material for crucibles in high-temperature applications, including melting metals like brass. Graphite has a high melting point and excellent thermal conductivity, making it suitable for withstanding the high temperatures required for melting brass. Additionally, graphite crucibles are known for their durability and resistance to thermal shock, which is important when working with molten metals. As brass has a lower melting point compared to other metals, such as steel or iron, graphite crucibles provide an efficient and reliable method for melting brass.

Q:What crucible can be used to make steel? At least 1500 degrees resistant: BOF is carried out in the converter. The converter is shaped like a pear, wall brick, oven side holes (outlet), compressed air from these holes blowing furnace, also called side-blown converter. Initially, the converter at the level of 1300 degrees Celsius, inward injected liquid raw lime and iron. Adding a certain amount of air, and then make it stand upright and rotate the converter.

Q:What are the different methods of preventing thermal shock in a graphite crucible?: There are multiple approaches available for preventing thermal shock in a graphite crucible. 1. Preheating the crucible before exposing it to high temperatures is a highly effective method. By gradually increasing the temperature, the crucible can expand uniformly, reducing the chances of cracks or fractures caused by sudden temperature changes. 2. It is equally important to cool down the graphite crucible gradually after use. Placing it in a controlled environment or utilizing a cooling chamber can prevent rapid temperature fluctuations, which are known to cause thermal shock. 3. Direct exposure to an open flame should be avoided as it can create localized hotspots and temperature variations, increasing the risk of thermal shock. It is recommended to employ indirect heating techniques such as furnace placement or using a heating mantle. 4. Incorporating insulating materials like ceramic fiber blankets or coatings can effectively reduce the heat transfer rate to the graphite crucible. This insulation helps minimize sudden temperature changes, thus lowering the likelihood of thermal shock. 5. Adequate handling of the graphite crucible is crucial to prevent thermal shock. Avoiding dropping or hitting the crucible against hard surfaces can prevent potential damage or cracks. Additionally, using proper lifting tools or tongs specifically designed for graphite crucibles can minimize the risk of mishandling. 6. It is important to control the heating and cooling rates when subjecting the graphite crucible to high temperatures. Rapid or uneven temperature changes can induce thermal stress and result in thermal shock. Incorporating temperature controllers or gradually adjusting the temperature can help reduce the risk of thermal shock. By implementing these techniques, the probability of thermal shock in a graphite crucible can be significantly diminished, ensuring its durability and reliability in various high-temperature applications.

Q:Are graphite crucibles suitable for use in a vacuum environment?: Yes, graphite crucibles are suitable for use in a vacuum environment. Graphite is a highly stable material that can withstand high temperatures and corrosive environments, making it a popular choice for various industrial applications including vacuum environments. Graphite crucibles have excellent thermal conductivity and resistance to thermal shock, which are important properties for maintaining temperature stability in a vacuum. Additionally, graphite has low outgassing properties, meaning it releases minimal gas or vapor when exposed to a vacuum, further making it suitable for use in such environments. Overall, graphite crucibles are a reliable and effective choice for conducting experiments or processes in a vacuum environment.

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