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:Graphite and diamond are elemental elements made of carbon. Why are physical properties so different?: Similarities and differences between diamond and graphite:graphiteGraphite and diamond are pure carbon, chemical formula of the two is C, a covalent bond, the molecular structure of graphite, their chemical properties are basically the same. But the diamond and graphite are not homogeneous material, they are allotropic body is composed of the same elements of carbon. Mainly because of their spatial structure is different, each atom between the graphite elemental form a planar structure, hexagonal flaky, a molecular bond between layer and layer, layer between sliding easily, so graphite is soft, dark gray, metallic luster, touch a greasy feeling and have a dark grey traces. Because the hexagonal structure is stable, so high temperature graphite, graphite can do high temperature lubricant. Therefore graphite has properties of high temperature resistance, good electrical conductivity, thermal conductivity, lubrication, plasticity and chemical stability.

Q:Can a graphite crucible be used for silicon melting?: No, a graphite crucible cannot be used for silicon melting because silicon has a high affinity for carbon and would react with the graphite crucible, leading to contamination of the silicon melt.

Q:Can graphite crucibles be used for diamond synthesis?: Diamond synthesis cannot be achieved using graphite crucibles. Despite both graphite and diamond being forms of carbon, they possess distinct structures and properties. Graphite exhibits a layered structure with weak bonding between layers, enabling it to conduct electricity and heat proficiently. Conversely, diamond features a three-dimensional structure with robust covalent bonds between carbon atoms, rendering it the hardest substance and a poor conductor of electricity. During the diamond synthesis process, carbon is converted into diamond utilizing elevated temperatures and pressures. Unfortunately, graphite crucibles lack the capability to endure such extreme conditions and would react with the carbon. Consequently, this reaction would yield more graphite instead of diamond. To synthesize diamonds successfully, specialized equipment such as high-pressure, high-temperature (HPHT) or chemical vapor deposition (CVD) techniques are utilized, necessitating different materials capable of withstanding the required conditions.

Q:Can a graphite crucible be used for melting rare earth metals?: Yes, a graphite crucible can be used for melting rare earth metals. Graphite is a suitable material for high-temperature applications, and it has good resistance to chemical reactions with various elements, including rare earth metals.

Q:Will the friction powder of the graphite sliding bearings rust?: The letter Ruida graphite thermal field | Rita graphite mold | letter letter Ruida lightning protector graphite | isostatic graphite graphite | surge | Ruida letter letter letter Ruida Ruida graphite products | graphite vacuum furnace | Rita graphite crucible | letter custom processing | graphite graphite powder |EDM graphite |10/350 surge graphite sheet for you to answer the above point of view, for reference only!

Q:Can graphite crucibles be used for catalyst preparation?: Catalyst preparation can indeed make use of graphite crucibles. Given their exceptional thermal conductivity and resistance to thermal shock, graphite crucibles are frequently employed in high temperature scenarios. They are able to endure temperatures of up to 3000°C, rendering them well-suited for multiple catalyst preparation methods that necessitate high temperatures. Graphite crucibles furnish a steady and unreactive setting for catalyst synthesis and preparation. They do not readily interact with most chemicals, enabling compatibility with a wide array of catalyst materials and precursors. This facilitates effective catalyst synthesis without the risk of impurities or undesired reactions. Moreover, graphite crucibles are renowned for their durability and lengthy lifespan, making them a cost-effective choice for repetitive use in catalyst preparation. They can be effortlessly cleaned and reused, thereby reducing the overall expenditure of the catalyst preparation process. It is important to note that the selection of crucible material may be contingent upon the specific catalyst preparation process and the chemicals involved. While graphite crucibles generally prove suitable for numerous catalyst preparation applications, some highly reactive or corrosive chemicals may necessitate the use of alternative crucible materials, such as ceramic or quartz crucibles. Consequently, it is crucial to consider the specific requirements of the catalyst preparation process before opting for a particular crucible material.

Q:Can graphite crucibles be used for powder metallurgy?: Indeed, powder metallurgy can utilize graphite crucibles. Graphite proves to be an exceptional substance for applications involving high temperatures, and it is frequently employed in powder metallurgy procedures. Graphite crucibles possess a melting point that is notably high and exhibit outstanding thermal conductivity, rendering them perfectly suited for the process of melting and retaining metal powders during sintering or melting operations. Furthermore, graphite crucibles demonstrate commendable chemical resistance, enabling them to endure the corrosive impact of specific metal powders. In summary, graphite crucibles present themselves as a dependable and efficient option for applications within the realm of powder metallurgy.

Q:How do you prevent graphite crucibles from cracking due to thermal stress?: To prevent graphite crucibles from cracking due to thermal stress, several measures can be taken. First, it is essential to properly preheat the crucible before subjecting it to extreme temperatures. This gradual heating process helps to minimize thermal shock. Additionally, maintaining a consistent temperature throughout the crucible's usage is crucial. Sudden temperature changes should be avoided as they can cause stress and lead to cracks. Moreover, ensuring that the crucible is not overloaded beyond its recommended capacity helps prevent excessive stress. Lastly, proper handling and storage of the crucible, including avoiding impacts or dropping it, can also contribute to its longevity and reduce the risk of cracking.

Q:Are there different sizes available for graphite crucibles?: Yes, there are different sizes available for graphite crucibles.

Q:Can a graphite crucible be used for aluminum casting?: Yes, a graphite crucible can be used for aluminum casting. Graphite crucibles are commonly used for high-temperature applications, including aluminum casting, due to their excellent thermal conductivity and resistance to chemical reactions with molten aluminum.

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