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Graphite Crucible For Aluminum silicon carbide ceramic

Short Description:

The Graphite Crucible for Aluminum is an essential tool for efficient and high-quality aluminum melting in various industries such as casting and die-casting. This crucible, made from premium silicon carbide graphite and clay graphite materials, is designed to meet the rigorous demands of aluminum melting processes while offering superior performance and durability.


Product Detail

FAQ

Product Tags

Crucible Quality

Withstands Myriad Smelts

PRODUCT FEATURES

 

 

Superior Thermal Conductivity

The unique blend of silicon carbide and graphite ensures rapid and uniform heating, significantly cutting down on melting time.

 

graphite crucibles
graphite crucibles

 

 

Extreme Temperature Resistance

The unique blend of silicon carbide and graphite ensures rapid and uniform heating, significantly cutting down on melting time.

 

 

Durable Corrosion Resistance

The unique blend of silicon carbide and graphite ensures rapid and uniform heating, significantly cutting down on melting time.

graphite crucibles

TECHNICAL SPECIFICATIONS

 

Graphite / % 41.49
SiC / % 45.16
B/C / % 4.85
Al₂O₃ / % 8.50
Bulk density / g·cm⁻³ 2.20
Apparent porosity / % 10.8
Crushing strength/ MPa (25℃) 28.4
Modulus of rupture/ MPa (25℃) 9.5
Fire resistance temperature/ ℃ >1680
Thermal shock resistance / Times 100

 

 

No. H (mm) D (mm) d (mm) L (mm)
TP 173 G 490 325 240 95
TP 400 G 615 360 260 130
TP 400 665 360 260 130
TP 843 675 420 255 155
TP 982 800 435 295 135
TP 89 740 545 325 135
TP 12 940 440 295 150
TP 16 970 540 360 160

 

PROCESS FLOW

 premium silicon carbide
Isostatic Pressing
High-Temperature Sintering
brass melting crucible
brass melting crucible
brass melting crucible

1. Precision Formulation

High-purity graphite + premium silicon carbide + proprietary binding agent.

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2.Isostatic Pressing

Density up to 2.2g/cm³ | Wall thickness tolerance ±0.3m

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3.High-Temperature Sintering

SiC particle recrystallization forming 3D network structure

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4.  Surface Enhancement

Anti-oxidation coating → 3× improved corrosion resistance

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5. Rigorous Quality Inspection

Unique tracking code for full lifecycle traceability

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6. Safety Packaging

Shock-absorbent layer + Moisture barrier + Reinforced casing

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PRODUCT APPLICATION

GAS MELTING FURNACE

Gas Melting Furnace

Induction melting furnace

Induction Melting Furnace

Resistance furnace

Resistance Melting Furnace

WHY CHOOSE US

Key Features and Benefits

  1. Superior Heat Resistance
    The Graphite Crucible for Aluminum can withstand extremely high temperatures, making it ideal for aluminum melting applications. Its composition of silicon carbide and graphite ensures excellent heat resistance, even in the most demanding environments, maintaining stability and integrity throughout the process.
  2. Outstanding Thermal Conductivity
    One of the main advantages of silicon carbide graphite crucibles is their superior thermal conductivity. This feature ensures quick and efficient heating, reducing energy consumption and speeding up the melting process. This is crucial in industries that require precise temperature control, such as aluminum casting and die-casting.
  3. High Corrosion Resistance
    The crucible's materials—silicon carbide and graphite—provide excellent resistance to corrosion, making it ideal for use with molten aluminum and other non-ferrous metals. This prevents contamination of the molten metal, ensuring the purity and quality of the end product.
  4. Durability and Longevity
    The Graphite Crucible for Aluminum is highly durable, with the ability to resist thermal shock, wear, and oxidation. Its longevity reduces the frequency of replacements, leading to lower operational costs and improved efficiency.
  5. Excellent Flow and Casting Performance
    With a smooth interior surface, these crucibles ensure that molten aluminum flows easily, minimizing metal adhesion to the crucible walls. This allows for better casting results and reduces waste, making the process more efficient.

The Graphite Crucible for Aluminum is available in two primary material types:

  • Silicon Carbide Graphite Crucibles: Known for their superior thermal conductivity and corrosion resistance, these crucibles are perfect for high-temperature aluminum melting processes.
  • Clay Graphite Crucibles: These offer a cost-effective alternative while still providing excellent performance in terms of heat resistance and durability.

Global Market Demand and Growth

As the aluminum casting industry continues to expand globally, driven by sectors such as automotive, aerospace, and electronics, the demand for Graphite Crucibles for Aluminum is increasing. These crucibles play a vital role in ensuring that manufacturers can meet growing production demands while maintaining high quality and efficiency. The market for crucibles is expected to grow significantly, presenting opportunities for businesses to invest in high-quality graphite crucibles that align with evolving industry needs.

Partner with Us

At our company, we adhere to the principle of “Quality First, Honoring Contracts, and Standing by Reputations.” Our commitment to providing high-quality Graphite Crucibles for Aluminum ensures that our customers receive reliable products that meet their exact needs. We warmly invite partners, both domestic and international, to explore opportunities for long-term business relationships. Whether you're in the aluminum casting industry or an agent looking to expand your product offerings, we are here to provide the highest level of service and support.

FAQS

Q1: What are the advantages of silicon carbide graphite crucibles compared to traditional graphite crucibles?

✅ Higher Temperature Resistance: Can withstand 1800°C long-term and 2200°C short-term (vs. ≤1600°C for graphite).
✅ Longer Lifespan: 5x better thermal shock resistance, 3-5x longer average service life.
✅ Zero Contamination: No carbon penetration, ensuring molten metal purity.

Q2: Which metals can be melted in these crucibles?
▸ Common Metals: Aluminum, copper, zinc, gold, silver, etc.
▸ Reactive Metals: Lithium, sodium, calcium (requires Si₃N₄ coating).
▸ Refractory Metals: Tungsten, molybdenum, titanium (requires vacuum/inert gas).

Q3: Do new crucibles require pre-treatment before use?
Mandatory Baking: Slowly heat to 300°C → hold for 2 hours (removes residual moisture).
First Melt Recommendation: Melt a batch of scrap material first (forms a protective layer).

Q4: How to prevent crucible cracking?

Never charge cold material into a hot crucible (max ΔT < 400°C).

Cooling rate after melting < 200°C/hour.

Use dedicated crucible tongs (avoid mechanical impact).

Q5: How to prevent crucible cracking?

Never charge cold material into a hot crucible (max ΔT < 400°C).

Cooling rate after melting < 200°C/hour.

Use dedicated crucible tongs (avoid mechanical impact).

Q6: What is the minimum order quantity (MOQ)?

Standard Models: 1 piece (samples available).

Custom Designs: 10 pieces (CAD drawings required).

Q7: What is the lead time?
⏳ In-Stock Items: Ships within 48 hours.
⏳ Custom Orders: 15-25 days for production and 20 days for mould.

Q8: How to determine if a crucible has failed?

Cracks > 5mm on inner wall.

Metal penetration depth > 2mm.

Deformation > 3% (measure outer diameter change).

Q9: Do you provide melting process guidance?

Heating curves for different metals.

Inert gas flow rate calculator.

Slag removal video tutorials.


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