Silicon Graphite Crucible for Melting Aluminium, Copper, Brass

Silicon Graphite Crucible for Melting Aluminium, Copper, Brass System 1

Silicon Graphite Crucible for Melting Aluminium, Copper, Brass System 2

Silicon Graphite Crucible for Melting Aluminium, Copper, Brass System 3

Silicon Graphite Crucible for Melting Aluminium, Copper, Brass

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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 for SiC Graphite Crucibles

Type:	High Strength, graphite crucible crucible	Application:	melting metal	Height:	as your requirements
Composition:	High Pure	Top Diameter:	10-600mm	Bottom Diameter:	10-1000mm
Place of Origin:	China (Mainland)	Brand Name:		Model Number:
Color:	Black grey	Si3N4%:	5min	Fe2O3%:	0.7max
C%:	30-45	Apparent porosity:	30max	Refractoriness:	1680
Bulk Density:	1.71min	Using life:	>5000 hours	MAX temperature:	1600c

Packaging & Delivery

Packaging Details:	Seaworty packing or as per customer's detail requirement of graphite crucible.
Delivery Detail:	within 20-30 days after confirm order of graphite cru

SiC Graphite Crucibles For Melting Aluminium And Copper, Brass

Product Description

Specifications for Graphite Silicon Carbide Crucible For Aluminum Melting :

1.Long working lifetime: its working lifetime is increased 3-5 times over normal clay-crucible due to the compact body formed under high pressure.

2.High thermal conductivity: high-density body and low apparent porosity greatly improve its heat conductivity.

3.New-style materials: new heat conduction material ensures faster heat conductivity and pollution-free product, reduces adherent slag.

4.Resistance to corrosion:better anti-corrosion than normal clay-crucible.

5.Resistance to oxidation: advanced process dramatically improves its oxidation resistance, which ensures persistent heat conductivity and long working lifetime.

6.High-strength: high-density body and logical structure make the product better compression property.

7.Eco-friendly: energy-efficient and pollution-free, not only ensure metal product purity, but also ensure sustainable development on environment.

8.Multi-function: Can be used in induction graphite crucible furnace

SiC Crucibles For Melting Aluminium And Copper, Brass

Physicochemical Properties of graphite crucible:

The crucible is an utensil or melting tank vessels that is made of refractory material (such as clay, graphite, quartz or difficult molten metal iron, etc.).

Graphite crucible, with is special advantages and Plasticity, is widely used in the smelting area, e.g. gold smelting, silver smelting, aluminum smelting, cooper smelting, etc.

		high pure graphite
Item	Unit	baked twice	baked three time	baked four times
Item	Unit	impregnated once	impregnated twice	impregnated three times
grain size	mm	≤325μm	≤325μm	≤325μm
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

		Fine-grain Specialty Graphite FXG-1		Fine-grain Specialty Graphite FXG-2
Item	Unit	Guarantee value	Typical value	Guarantee value	Typical value
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

NO	Top diameter	Bottom diameter	Height	Tolerance	Capacity(Kg5%)
2	90	50	55	2	0.3
3	105	80	93	2	0.5
4	102	80	100	2	0.6
5	112	82	130	2	0.8
6	120	82	141	2	0.9
8	138	90	153	2	1.2
12	148	100	181	2	1.8
16	156	110	190	2	2.3
20	180	120	230	2	3
25	186	128	248	2	3.7

Packaging & Shipping

Package: Wooden case and wooden pallet or pack as customer's requirement of graphite crucible.

Delivery time: depend on distance, usually 20 days to 50days after deposit of graphite crucible.

We can supply the products according to customer's drawings, samples and performance requirement.

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SiC Crucibles For Melting Aluminium And Copper, Brass

FAQ

1.What's your MOQ?

We will indicate the MOQ for each item in the quotation list. We accept the sample and trail order.

2.Can I negotiate the Prices?

Sure, we may consider discounts for bulk order of products.

3.How long will it take to complete my order?

For the stock items, we can arrange the shippment within 2~3days after received your payment. For the customized items, we will indicate the delivery time in the quotation list.

4.Can you give warranty of your products?

Yes, we extend a 100% satifisfaction guarantee on all items. Please feel free to provide timely feedback if you're not satisfied with N&D's Quality and Service. For the overseas orders, if there is a quality problem, please kindly to provide the picturers to show the problem by e-mail. We will provide the replacements to you at our cost according to actual conditions.

5.Can I visit you?

Sure. If you're a volume buyer and would like to visit our in-house products and production line, please contact us to make an appointment.

Q: Why is it a change of gold? Now it's black and muddy: The gold ingot melting drying powder into a quartz crucible, the high temperature furnace is heated to 1200 DEG C (homemade coke furnace without high temperature furnace, use a hair dryer blowing), to be full of gold powder melted out into the pre made ingot graphite good. If the gold powder is pure, after melting adding a small amount of borax, at this time should be placed in the graphite crucible melting ingot. The purification, the purity of gold reaches more than 99.6%.

Q: Can graphite crucibles be used for melting explosives?: Graphite crucibles are commonly used for high temperature applications such as melting metals, but they are not recommended for melting explosives. Graphite is a good conductor of heat, which means it can reach high temperatures quickly, but it can also react with certain chemicals, including explosives. This can lead to unexpected reactions, safety hazards, and potential damage to the crucible. Therefore, it is crucial to use specialized materials and equipment specifically designed for melting explosives to ensure the safety of the process and the individuals involved.

Q: How does the hardness of graphite affect the performance of a crucible?: The hardness of graphite plays a significant role in the performance of a crucible. Graphite is a commonly used material for crucibles due to its high melting point, chemical inertness, and thermal conductivity. However, the hardness of the graphite used can greatly impact its durability and longevity. A harder graphite material tends to be more resistant to wear and tear, making it less prone to cracking or breaking under high temperatures or repeated use. This durability is crucial in maintaining the structural integrity of the crucible, as any damage can lead to contamination of the material being processed or a compromised containment of molten substances. Furthermore, a harder graphite crucible can withstand thermal shocks more effectively. The thermal expansion and contraction that occurs during heating and cooling cycles can cause stress on the crucible walls. A harder graphite material is less likely to undergo significant dimensional changes, reducing the risk of cracking or warping due to thermal stress. In addition, the hardness of graphite can affect its ability to resist chemical attack. While graphite is generally chemically inert, it can still be susceptible to certain chemicals or corrosive environments. A harder graphite material is typically more resistant to chemical reactions, providing better protection against erosion or degradation caused by the material being processed. Overall, the hardness of graphite directly impacts the performance of a crucible by influencing its durability, resistance to thermal shocks, and ability to resist chemical attack. Choosing a graphite material with appropriate hardness is essential to ensure the optimal performance and longevity of the crucible in various high-temperature applications.

Q: Is it often influenced by graphite tube replacement in atomic absorption furnace?: The instrument from the light source radiation with the measured spectral line of light, when the steam by the steam through the specimen to be measured in the ground state of the atom elements absorbed by the radiation characteristic spectrum of light is reduced the degree of determination of sample analyte. Because of the atomic absorption spectrometer is sensitive, accurate and simple characteristics, has been widely used in metallurgy, mining, geological analysis, petroleum, light industry, agriculture, medicine, health, food and environmental monitoring etc. the major and trace elements.

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: Are there different sizes available for graphite crucibles?: Indeed, graphite crucibles are offered in various sizes to cater to diverse needs and applications. These crucibles come in a plethora of sizes, ranging from petite ones suitable for jewelry making or minor laboratory experiments to more substantial ones used for industrial purposes such as metal casting or melting. The necessary size of the crucible is contingent upon the quantity of material to be melted or processed, as well as the unique demands of the application at hand. Consequently, an array of sizes is made available to satisfy distinct requirements and guarantee the optimal and proficient utilization of graphite crucibles.

Q: Can graphite crucibles be used for melting and casting of non-ferrous metals?: Graphite crucibles are capable of being utilized in the process of melting and casting non-ferrous metals. Within various industries, including foundries and metalworking, graphite crucibles are highly prevalent due to their exceptional thermal conductivity and ability to withstand high temperatures. Non-ferrous metals, such as aluminum, copper, zinc, and gold, possess lower melting points when compared to iron and steel, thus rendering them appropriate for melting within graphite crucibles. The superior thermal conductivity of graphite ensures the even distribution of heat throughout the crucible, thereby facilitating the efficient melting and casting of non-ferrous metals. Furthermore, graphite crucibles exhibit commendable chemical resistance and minimal reactivity with non-ferrous metals, thereby further enhancing their suitability for this particular application. Nevertheless, it is crucial to acknowledge that graphite crucibles may not be suitable for certain metals that are reactive or corrosive, as they have the potential to react with graphite and adversely impact the quality of the casting.

Q: How does the wear resistance of graphite affect the performance of a crucible?: The performance of a crucible is heavily dependent on the wear resistance of graphite. A crucible, which is used to hold and heat materials at high temperatures in industrial processes, often relies on graphite due to its unique properties, including high thermal conductivity, chemical inertness, and thermal stability. When it comes to a crucible, its ability to endure wear and erosion caused by intense heat and chemical reactions is a major factor. Graphite, known for its exceptional wear resistance, can withstand these harsh conditions, making it an ideal material for crucibles. By ensuring wear resistance, graphite helps maintain the structural integrity of the crucible, preventing degradation or breakdown during use. This is crucial in preventing contamination of the materials being processed or heated in the crucible. Contamination can negatively impact the final product's quality and purity, resulting in financial losses and compromised performance. Furthermore, graphite's wear resistance affects the lifespan of the crucible. A crucible with high wear resistance will last longer, reducing maintenance costs and improving efficiency in industrial processes. This allows for repeated use without frequent replacement, which can be both time-consuming and expensive. Moreover, graphite's wear resistance also influences the crucible's thermal stability. With its high melting point, graphite can withstand extreme temperatures without deforming or losing structural integrity. This ensures that the crucible maintains its shape, preventing cracks or warping under thermal stress. The ability to withstand high temperatures is vital for processes that involve prolonged heating or exposure to intense heat. In conclusion, the wear resistance of graphite significantly impacts the performance of a crucible. Its ability to endure wear and erosion helps maintain the crucible's structural integrity, prevents contamination, and extends its lifespan. Additionally, graphite's thermal stability allows the crucible to withstand high temperatures without deforming or breaking down. Overall, the wear resistance of graphite is a critical factor in determining the efficiency and reliability of a crucible in various industrial applications.

Q: What are the considerations for selecting a crucible support for graphite crucibles?: When selecting a crucible support for graphite crucibles, there are several important considerations to keep in mind. Firstly, it is crucial to choose a crucible support that is compatible with graphite crucibles. Graphite has unique properties, such as its high melting point and thermal conductivity, which require a support that can withstand these conditions without deforming or reacting with the crucible material. Materials like silicon carbide or clay graphite are commonly used as crucible supports for graphite crucibles due to their high temperature resistance and compatibility with graphite. Secondly, the size and shape of the crucible support should be considered. The support needs to be able to securely hold the graphite crucible in place, preventing any movement or tipping during heating or pouring. It should also provide enough stability to withstand the weight of the crucible and the material being melted or processed. The design and construction of the crucible support is another important consideration. It should have a sturdy and robust structure to ensure long-term durability and reliability. Additionally, the support should be easy to handle and maintain, allowing for convenient handling and cleaning. Furthermore, it is essential to consider the thermal properties of the crucible support. The support should have good thermal conductivity to evenly distribute heat to the crucible, ensuring uniform heating and preventing any hotspots or thermal stress. It should also have low thermal expansion to minimize the risk of cracking or damage to the crucible during heating and cooling cycles. Lastly, cost and availability are significant factors to consider. Crucible supports can vary in cost depending on the material, design, and size. It is important to evaluate the budget and availability of crucible supports to ensure they meet the requirements and constraints of the specific application. Overall, selecting a crucible support for graphite crucibles requires careful consideration of factors such as compatibility, size and shape, design and construction, thermal properties, and cost. By taking these considerations into account, one can choose a suitable crucible support that ensures optimal performance and longevity for graphite crucibles.

Q: Cast iron into a casting. What is the state of the matter, change, sublimation? Sublimation? melt: The corrosion resistance of acid and alkaline solution is strong, and it has good chemical stability. In metallurgy, casting, machinery, chemical and other industrial sectors, it is widely used in smelting of alloy tool steel and smelting of nonferrous metals and their alloys. And has better technical and economic results.

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