• Refractory Crucibles Sic Crucible For Melting Copper/Brass/Aluminum System 1
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Refractory Crucibles Sic Crucible For Melting Copper/Brass/Aluminum

Refractory Crucibles Sic Crucible For Melting Copper/Brass/Aluminum

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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 Refractory Crucibles Sic Crucible For Melting Copper/Brass/Aluminum


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

Refractory Crucibles Sic Crucible For Melting Copper/Brass/Aluminum                       

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.


Refractory Crucibles Sic Crucible For Melting Copper/Brass/Aluminum

Refractory Crucibles Sic Crucible For Melting Copper/Brass/Aluminum


 

Refractory Crucibles Sic Crucible For Melting Copper/Brass/Aluminum

Physicochemical Properties

 

Type of Crucible

Type S

Type D

Carbon   Content/%

≥38

≥45

Bulk   Density/(g/cm3)

≥1.70

≥1.85

Apparent Porosity/%

≤29

≤21

Compression   Strength/MPa

≥20

≥25

Refractoriness/°C

≥1400

≥1400

Type S: Clay graphite crucible

Type D: Isostatic pressing graphite crucible

 Cited from CNS China National Standard of Graphite Crucible, which is solely drifted by TIANFU company.  

Content Composition

 

C%

Sic%

AL2O3%

SIO2%

45%-50%

20%-30%

10%-12%

15-25%



Q:What are the different methods of removing impurities from a graphite crucible?
There are several methods of removing impurities from a graphite crucible, depending on the type and extent of the impurities. 1. Mechanical Cleaning: This method involves physically scraping or brushing the surface of the crucible to remove any loose or adhered impurities. A soft brush or sponge can be used for this purpose. However, this method may not be sufficient for removing stubborn or ingrained impurities. 2. Chemical Cleaning: Chemical cleaning is often effective for removing organic impurities from a graphite crucible. Solvents like acetone or alcohol can be used to dissolve and remove oils, greases, or other organic contaminants. The crucible can be soaked in the solvent or the solvent can be scrubbed onto the surface using a cloth or brush. It is important to thoroughly rinse the crucible with water after chemical cleaning to ensure all the solvent is removed. 3. Thermal Cleaning: Heating the graphite crucible to high temperatures can help in removing certain impurities. This method is particularly effective for removing inorganic impurities or substances that can be oxidized or vaporized at high temperatures. The crucible can be heated in a furnace or subjected to a controlled burn with a flame. However, caution should be exercised to prevent thermal shock or damage to the crucible during heating. 4. Electrochemical Cleaning: Electrochemical cleaning involves applying an electric current to the graphite crucible in the presence of a suitable electrolyte. This method can help in removing certain types of impurities, such as metal oxides or deposits, by inducing electrochemical reactions that cause them to either dissolve or deposit onto an electrode. However, this method requires specialized equipment and expertise. It is important to note that the choice of cleaning method should be based on the specific impurities present and the requirements of the application. Additionally, regular maintenance and cleaning of the graphite crucible can help prevent the buildup of impurities and prolong its lifespan.
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.
Q:What are the catalysts for making SiC from rice husk?
Rice husk is a by-product of rice mill processing, accounting for about 20% of the total output of rice. At present, rice husk is more than 60 Mt of rice husk all over the world. Therefore, many places regard rice husk as a waste, which not only wastes resources, but also pollutes the environment. It is of great significance to study and solve the reasonable utilization of rice husk and turn waste into treasure. Using rice husk as raw material can be produced in excess of the value of its own several chemical products, especially the cutting-edge science indispensable high-tech products, which is one of the important products of silicon carbide, and the production process is simple, easy to control, low cost, greatly improves the utilization ratio of rice husk. (rice husk, silicon carbide) (rice husk * SiC)
Q:Why do laboratory crucibles use ceramics instead of glass?
Because the glass has a softening temperature, and the temperature is below 1000 DEG C, therefore, made of glass crucible at high temperature when the heating crucible may be softening deformation, and the glass crucible should not contact with alkaline substances.
Q:New energy, crystal, silicon and other research and development, production, because the crucible rotary table heating device, there is no good solution to share?
The silicone rubber electric plate allows heat to pass wherever it is needed, improves heat transfer, speeds up heating and reduces power requirements in processing.
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:Melting copper slag with a graphite crucible furnace can add any flux, in order to shorten the melting time and save fuel
The more specific fuel, you can contact specific: Pingdu Hua Hua graphite factory car factory director, their factory is specializing in the production of graphite crucible manufacturers, quality is better
Q:How is a graphite crucible used in the manufacturing industry?
A graphite crucible is used in the manufacturing industry as a container for melting and holding high-temperature materials, such as metals and alloys. It is highly resistant to heat and chemical corrosion, making it suitable for various industrial processes like metal casting, melting, and refining. The crucible's ability to withstand extreme temperatures and its excellent thermal conductivity ensures efficient heat transfer, allowing for precise control over the manufacturing process. Additionally, graphite crucibles are durable and have a long lifespan, making them a cost-effective choice for industrial applications.
Q:Can a graphite crucible be used for melting non-metallic materials?
Yes, a graphite crucible can be used for melting non-metallic materials. Graphite is a highly versatile material that can withstand high temperatures, making it suitable for melting various substances, including non-metallic materials. Graphite crucibles are commonly used in industries such as glass manufacturing, ceramics, and melting of precious stones. The high heat resistance of graphite allows it to endure the intense temperatures required for melting non-metallic materials, providing a reliable and efficient option for these applications.
Q:Can graphite crucibles be used for plasma arc melting?
Yes, graphite crucibles can be used for plasma arc melting. Graphite has excellent heat resistance and electrical conductivity properties, making it suitable for containing and melting materials under high temperatures generated by plasma arcs.

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