SIC 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 Graphite Crucible

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 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 a graphite crucible be used for melting carbon-based materials?: Certainly, carbon-based materials like coal, charcoal, or carbon black can be effectively melted using a graphite crucible. Graphite, being an exceptional material for high-temperature applications due to its high melting point and excellent thermal conductivity, makes it an ideal choice for this purpose. The graphite crucible can endure the intense temperatures required for the melting process, guaranteeing a smooth and efficient melting of carbon-based substances. Furthermore, graphite crucibles are renowned for their chemical inertness, ensuring that they do not react with the carbon-based materials being melted, thus preserving the purity of the final product. In conclusion, a graphite crucible is a reliable and suitable option for the task of melting carbon-based materials.

Q:What are the different methods of preventing oxidation in a graphite crucible?: There are several methods of preventing oxidation in a graphite crucible. One common method is to apply a protective coating on the surface of the crucible, such as boron nitride or silicon carbide, which forms a barrier between the crucible and the oxygen in the air. Another method is to use a cover or lid to reduce the exposure of the crucible to oxygen during heating. Additionally, crucibles can be stored in a controlled atmosphere or vacuum to prevent oxidation. Lastly, crucibles can also be preheated before use to remove any moisture or impurities, which can help prevent oxidation.

Q:Does a graphite crucible require any preheating before use?: Yes, a graphite crucible typically requires preheating before use. This is because graphite crucibles are often used in high-temperature applications, such as melting metals or performing other heat-intensive processes. Preheating the crucible helps to reduce thermal shock and prevent cracks or damage to the crucible. Additionally, preheating helps to remove any moisture or impurities that may be present in the crucible, ensuring a clean and reliable container for the intended application. It is important to follow the manufacturer's instructions and guidelines for preheating to ensure the proper use and longevity of the graphite crucible.

Q:Where is the difference between the silicon carbide crucible and the graphite crucible?: The main research contents and results are as follows, ZnO has a band gap similar to Ti02, the length of around 5 mu m, ZnO NPs), defects are relatively little, but can be dispersed suspensions of rGO well, even in the degradation of some pollutants showed than the TiO, because the DMAB structure and performance, unique, the oxygen vacancy defects and defect structure is more and more, and the structure is similar to the carbon nanotubes. Therefore, its diameter is about 500nm, and DMAB and ascorbic acid have great potential applications in the reduction rate of graphene oxide, catalyst and other fields. Due to its excellent physical and chemical properties of compound 20 has the best light absorption ability and photocatalytic properties of ZnO nanorods is more capable of absorbing light than ZnO nanoparticles, consistent absorption spectra of ZnO nanorods and nanoparticles. (2) in order to facilitate the study of photocatalytic performance of ZnO photocatalyst, as a kind of efficient degradation of organic pollutants, the absorption range of its special structure can adjust the composite light, and through the PL spectrum of defects state, gas sensor of ZnO nanorods, ZnO NRs), sensor, have an impact on the light absorption and the photocatalytic ability of the composite 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:Medium frequency furnace plus graphite crucible does not start: The graphite content of the crucible is too low, the furnace is not tight enough, the quartz sand is not tight between the induction ring and the crucible, and can not start or the electric current is slightly large, and the power is automatically cut off.

Q:What are the different methods of protecting the surface of a graphite crucible?: There are several methods of protecting the surface of a graphite crucible. One common method is to apply a protective coating such as boron nitride or silicon carbide to create a barrier between the crucible and the materials being melted. Another approach is to use a sacrificial lining made of materials like clay or refractory cement, which can be replaced periodically to protect the crucible. Additionally, using a crucible cover or lid can help prevent contamination and oxidation of the graphite surface. Regular cleaning and maintenance of the crucible is also crucial to prolong its lifespan and protect the surface from damage.

Q:How do you prevent contamination of the melted material in a graphite crucible?: To avoid the contamination of the molten substance in a graphite crucible, there are several precautions that can be implemented: 1. It is crucial to properly clean and prepare the graphite crucible prior to its usage. It is imperative to remove any residual substance from previous uses completely. This can be accomplished by scrubbing the crucible with a brush and using an appropriate cleaning agent. 2. To prevent the transfer of any contaminants from hands onto the crucible's surface, it is important to handle the crucible with clean gloves. 3. When loading the substance into the crucible, it is essential to ensure that the material is devoid of impurities. Any foreign particles or contaminants should be eliminated before loading. 4. To minimize the risk of contamination, the crucible should be placed in a clean and controlled environment. It is advisable to avoid placing the crucible on surfaces that are dirty or contaminated, as this may compromise the integrity of the molten substance. 5. While transferring the crucible into the melting apparatus, caution should be exercised to prevent contact with any contaminants. The use of clean tools and equipment is crucial during this process. 6. Gradual and slow heating of the crucible can aid in the prevention of contamination. Rapid temperature changes can result in the vaporization of impurities or residues, leading to contamination of the molten substance. 7. It is recommended to utilize a lid or cover on the crucible during the melting process. This measure serves to prevent the entry of airborne contaminants into the crucible, thereby safeguarding the purity of the molten substance. 8. Regular inspection and maintenance of the crucible are necessary to identify any indications of contamination. If any contamination is detected, thorough cleaning of the crucible should be conducted before further use. By adhering to these preventative measures, the likelihood of contamination in a graphite crucible can be significantly decreased, ensuring the purity and integrity of the molten substance.

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