We help the world growing since 1983

Graphite Crucible With Spout for Melting Gold and Silver

Short Description:

The Graphite Crucible With Spout is a high-performance crucible used for metal melting and casting. Widely applied in metallurgy, foundry, and chemical industries, the crucible’s excellent thermal conductivity, high-temperature resistance, and corrosion resistance make it an essential tool for precise pouring of molten metal.


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

 Material Selection:

The Graphite Crucible with Spout is made from silicon carbide graphite, combining the high thermal conductivity of graphite with the strength of silicon carbide. This material choice ensures high oxidation resistance, stability at extreme temperatures, and improved metal purity by minimizing impurities during the melting process.

 

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.

.

2.Isostatic Pressing

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

.

3.High-Temperature Sintering

SiC particle recrystallization forming 3D network structure

.

4.  Surface Enhancement

Anti-oxidation coating → 3× improved corrosion resistance

.

5. Rigorous Quality Inspection

Unique tracking code for full lifecycle traceability

.

6. Safety Packaging

Shock-absorbent layer + Moisture barrier + Reinforced casing

.

PRODUCT APPLICATION

GAS MELTING FURNACE

Gas Melting Furnace

Induction melting furnace

Induction Melting Furnace

Resistance furnace

Resistance Melting Furnace

WHY CHOOSE US

When it comes to melting and pouring in casting processes, precision, efficiency, and reliability are paramount. The Graphite Crucible with Spout is designed to meet the rigorous demands of industries such as foundries, metallurgy, and metal processing. Its combination of high-quality materials and innovative design provides superior performance in molten metal pouring, ensuring precision and safety. Whether you're working with aluminum, copper, gold, or silver, this casting crucible ensures consistent results and long-lasting durability.

Key Features of the Graphite Crucible with Spout

  1. Excellent Thermal Conductivity:
    The silicon carbide graphite material ensures rapid and uniform heating, optimizing energy efficiency and reducing production time. This makes the Graphite Crucible with Spout ideal for applications that require quick temperature ramp-up and consistent heat distribution.
  2. High-Temperature Resistance:
    Capable of withstanding temperatures above 2000°C, the crucible is suitable for melting metals such as aluminum, copper, gold, and silver, providing excellent performance in high-temperature environments.
  3. Specially Designed Spout for Precision Pouring:
    The integrated spout design allows precise control over metal flow during molten metal pouring, reducing waste, preventing splashing, and ensuring safe operation. This feature is particularly beneficial for industries that prioritize accuracy in casting processes.
  4. High Mechanical Strength:
    With superior mechanical strength, the crucible can withstand both thermal and mechanical stress, ensuring durability in harsh industrial conditions. Its resistance to cracking and deformation makes it ideal for demanding casting applications.
  5. Corrosion Resistance:
    The Graphite Crucible with Spout offers excellent resistance to chemical agents, including acids, alkalis, and molten metals. This extends the crucible’s lifespan, reducing the frequency of replacements and lowering operational costs.
  6. Low Thermal Expansion:
    The low thermal expansion coefficient ensures that the crucible remains stable even under extreme temperature variations, minimizing the risk of cracking and deformation. This stability enhances the safety and reliability of the casting process.
  7. Best Practices for Usage

    1. Preheating:
      Before first use, preheat the crucible gradually to 300°C to eliminate any moisture and avoid cracking from sudden exposure to high temperatures.
    2. Operational Guidelines:
      Handle with care, avoiding impacts or collisions with hard objects that could damage the crucible. When pouring molten metal, control the tilt angle carefully to ensure smooth, splash-free pouring.
    3. Maintenance and Cleaning:
      After each use, clean any remaining material inside the crucible to maintain a smooth interior surface. Regular cleaning improves thermal conductivity and ensures efficient future melts.
    4. Storage:
      Store the crucible in a cool, dry place when not in use to protect it from moisture and prolong its lifespan.
  8. Why Choose Our Graphite Crucible with Spout?

    Our Graphite Crucible with Spout is designed for professionals who demand precision and reliability in molten metal pouring operations. Whether you are involved in metal casting, research, or chemical processing, our crucibles provide unparalleled performance, reducing costs and enhancing productivity. The spout design ensures accuracy, safety, and efficiency, making it the go-to choice for industries that require meticulous control in pouring processes.

    Customer Support and Customization

    At ABC Foundry Supplies, we are committed to providing exceptional service, from technical support to full customization. We can tailor the size, shape, and material composition of the crucible to meet your specific needs, ensuring it integrates seamlessly into your existing equipment.

    • Technical Support: Our team of experts is available to offer guidance on the correct usage and maintenance of the crucibles, helping you get the most out of your investment.
    • After-Sales Service: We offer comprehensive after-sales service to address any issues or concerns, ensuring a smooth and productive operation for our customers.

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.


  • Previous:
  • Next:

  • Related Products