High Purity Graphite Crucible for Melting Metals

High Purity Graphite Crucible for Melting Metals System 1

High Purity 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: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.

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.

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 different methods of preventing oxidation in a graphite crucible?: There are various techniques available to prevent oxidation in a graphite crucible. 1. Coating: An effective approach involves the application of a protective coating on the inner surface of the crucible. This coating acts as a barrier, preventing direct contact between the crucible and the oxidizing atmosphere. Refractory materials like zirconium oxide or alumina are commonly used for this purpose. 2. Preheating: Another method that works well is preheating the crucible prior to use. Subjecting the graphite crucible to high temperatures helps eliminate any impurities or volatile substances present, leaving behind a more stable and less vulnerable surface. This aids in minimizing oxidation during subsequent use. 3. Vacuum or inert gas environment: Performing operations within a vacuum or an inert gas environment, such as argon or nitrogen, can significantly reduce the likelihood of oxidation. These environments lack oxygen, which is necessary for oxidation to occur. By eliminating or reducing the presence of oxygen, the graphite crucible remains shielded from oxidation. 4. Temperature control: Properly managing the temperature also plays a crucial role in preventing oxidation in a graphite crucible. Excessive and prolonged exposure to high temperatures can accelerate oxidation. By maintaining the temperature within a specific range and avoiding abrupt temperature changes, oxidation can be kept to a minimum. 5. Regular cleaning and maintenance: Lastly, regular cleaning and maintenance of the crucible are imperative to prevent oxidation. Removing any accumulated contaminants or residues from the surface helps preserve the integrity of the crucible and safeguards against oxidation during subsequent use. It is important to consider that the choice of method may vary depending on the specific application and requirements. Factors such as the nature of the materials being processed, the operating conditions, and the desired level of protection against oxidation should be taken into account when selecting an appropriate method.

Q:Can graphite crucibles be used for material synthesis?: Yes, graphite crucibles can be used for material synthesis. Graphite has excellent thermal conductivity, chemical resistance, and high temperature resistance, making it suitable for various material synthesis processes such as melting, calcination, and fusion. Additionally, graphite crucibles can withstand rapid temperature changes and are inert, making them ideal for use in the synthesis of different materials.

Q:Is the jade pressed by the machine natural?: The market of jade mainly have three kinds, namely a cargo, B goods and C goods, which refers to the goods without any manual optimization of natural jade is genuine genuine goods at a fair price. B goods after a strong acid cleaning, inside the note of glue, although after polishing, but the surface will still have acid corrosion pattern, this kind of goods after a period of time will be yellow. C goods is a dyed emerald, usually with colorless, light colored and water head better low-grade jade artificial dyeing, and a long time will fade.

Q:Does a graphite crucible react with any substances during use?: During use, a graphite crucible does not undergo any reactions with substances. Graphite is chemically inactive and possesses a high melting point, rendering it perfect for high-temperature applications such as metal melting. It does not interact with the materials being melted or any other substances present within the crucible. This characteristic of graphite permits the secure and effective handling of diverse substances when carrying out processes like metal casting, glass melting, or chemical reactions.

Q:Can a graphite crucible be used for powder injection molding?: Yes, a graphite crucible can be used for powder injection molding. Graphite crucibles are commonly used in powder injection molding processes due to their high temperature resistance, excellent thermal conductivity, and non-reactivity with most metals and alloys, making them suitable for melting and shaping powdered materials.

Q:Can graphite crucibles be used for metal powder atomization?: Yes, graphite crucibles can be used for metal powder atomization. Graphite crucibles are often preferred for their high melting point, excellent thermal conductivity, and chemical resistance. These properties make them suitable for the high-temperature process of metal powder atomization, where fine metal powders are produced by rapidly cooling molten metal. Additionally, graphite crucibles provide good control over the atomization process, making them a popular choice in industries such as aerospace, automotive, and additive manufacturing.

Q:Can graphite crucibles be used for heat treatment processes?: Yes, graphite crucibles can be used for heat treatment processes. Graphite is known for its high melting point and excellent thermal conductivity, which makes it an ideal material for applications requiring high temperatures and efficient heat transfer. Heat treatment processes involve heating materials to specific temperatures to alter their physical or chemical properties. Graphite crucibles can withstand these high temperatures without melting or deforming, ensuring the stability and integrity of the heat treatment process. Additionally, graphite's low reactivity with most substances makes it suitable for a wide range of heat treatment applications, including annealing, tempering, quenching, and carburizing. Overall, graphite crucibles are a popular choice for heat treatment processes due to their high temperature resistance, thermal conductivity, and chemical inertness.

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