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Small Clay graphite crucible for gold and silver

Short Description:

Clay graphite crucible is a high-performance container that combines the properties of clay and graphite. It is mainly used for material processing in high-temperature environments.  During the manufacturing process, clay provides excellent high temperature resistance, while graphite imparts excellent thermal conductivity.  This dual advantage allows the crucible to remain stable at extremely high temperatures and effectively prevents leakage of molten material.


Product Detail

FAQ

Product Tags

Faster Heat Conduction · Longer Service Life

Premium Thermal Shock Resistant Graphite Crucible

PRODUCT FEATURES

Rapid Melting

High thermal conductivity graphite material improves thermal efficiency by 30%, significantly reducing melting time.

graphite crucibles
graphite crucbiles

Superior Thermal Shock Resistance

Resin-bonded technology withstands rapid heating and cooling, allowing direct charging without cracking.

Exceptional Durability

High mechanical strength resists physical impact and chemical erosion for a longer service life.

grapthite 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 Model H OD BD
RA100 100# 380 330 205
RA200H400 180# 400 400 230
RA200 200# 450 410 230
RA300 300# 450 450 230
RA350 349# 590 460 230
RA350H510 345# 510 460 230
RA400 400# 600 530 310
RA500 500# 660 530 310
RA600 501# 700 530 310
RA800 650# 800 570 330
RR351 351# 650 420 230

 

PROCESS FLOW

Precision Formulation

1. Precision Formulation

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

.

Isostatic Pressing

2.Isostatic Pressing

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

.

High-Temperature Sintering

3.High-Temperature Sintering

SiC particle recrystallization forming 3D network structure

.

Rigorous Quality Inspection

5. Rigorous Quality Inspection

Unique tracking code for full lifecycle traceability

.

Surface Enhancement

4.  Surface Enhancement

Anti-oxidation coating → 3× improved corrosion resistance

.

Safety Packaging

6. Safety Packaging

Shock-absorbent layer + Moisture barrier + Reinforced casing

.

PRODUCT APPLICATION

Suitable for most non-ferrous metals

melting aluminium

Melt Aluminium

melting copper

Melt Copper

melting gold

Melt Gold

WHY CHOOSE US

Why Partner with Us?

When you choose us, you get more than a product—you get a partner.

  • Expertise: Decades of experience in the foundry industry.
  • Customization: Tailored solutions to meet your specific needs.
  • Support: From selection to installation, we’re with you every step of the way.
  • In the demanding environments of metal smelting and high-temperature processing, selecting the right crucible is crucial for ensuring efficiency and product quality. As industry professionals, you require a reliable solution that combines high performance, durability, and environmental responsibility. Our Clay Graphite Crucibles offer an advanced material option, tailored to meet the rigorous demands of your applications.
  • Key Features and Advantages

    1. Exceptional High-Temperature Resistance:
      • Clay Graphite Crucibles can withstand temperatures up to 1600°C, making them ideal for extreme heat treatment processes. Their ability to maintain structural integrity in harsh environments ensures consistent performance, even under the most challenging conditions.
    2. High Chemical Inertness:
      • Our crucibles exhibit excellent corrosion resistance, effectively resisting the erosion of most acidic or alkaline molten materials. This characteristic significantly extends the service life of the crucible, making it a cost-effective choice for your operations.
    3. Efficient Thermal Conductivity:
      • With superior thermal conductivity, our Clay Graphite Crucibles dissipate heat quickly and evenly. This feature promotes temperature balance in the molten material, enhancing process accuracy and efficiency, ultimately improving your production outcomes.
    4. Outstanding Thermal Shock Stability:
      • These crucibles remain stable during rapid temperature changes, preventing cracking or deformation. This stability makes them suitable for applications requiring frequent thermal cycling, ensuring reliable performance in demanding environments.
    5. Lightweight and High Strength:
      • Compared to traditional metal crucibles, Clay Graphite Crucibles are lighter yet possess high strength. This reduces handling difficulties and equipment wear while lowering energy consumption during transportation and usage.

        Application Areas

        Clay Graphite Crucibles are widely utilized across various industries, particularly in:

        • Ceramics Manufacturing: Used in the production and refinement of ceramic materials, ensuring quality and precision.
        • Metal Smelting: Essential for smelting metals and alloys, providing the necessary thermal and chemical properties to support efficient melting processes.
        • Scientific Laboratories: Ideal for high-temperature experiments in materials science, physical chemistry, and biomedical research, ensuring accurate results through reliable performance.

        Environmental Characteristics and Future Development

        One of the most significant advantages of Clay Graphite Crucibles is their environmentally friendly properties. Unlike traditional materials that may contain harmful chemicals, our crucibles are free from substances such as lead and mercury, making them safer for both the environment and human health.

        With advancing technology and growing awareness of environmental protection, the demand for Clay Graphite Crucibles is expected to rise. Their potential applications in new energy and environmental protection sectors present exciting opportunities for the future. As research continues, we aim to explore and unlock more applications, enhancing their role in materials science and engineering.

        Conclusion

        As an efficient and environmentally responsible material solution, Clay Graphite Crucibles are gaining recognition in the fields of materials science and engineering. Their excellent performance, combined with their lightweight design and high durability, positions them as a leading choice for industry professionals. With a commitment to innovation and environmental sustainability, we are confident that Clay Graphite Crucibles will play a pivotal role in the future of high-temperature applications. For inquiries or to discuss your specific needs, please contact us for further information.

graphite crucibles

FAQS

Q1: Can The Crucible Cover reduce energy costs?
A: Absolutely! It reduces heat loss, cutting energy consumption by up to 30%.

Q2: What furnaces are compatible?
A: It’s versatile—suitable for induction, gas, and electric furnaces.

Q3: Is graphite silicon carbide safe for high temperatures?
A: Yes. Its thermal and chemical stability makes it perfect for extreme conditions.

 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.

Case Study #1

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Case Study #2

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Testimonials

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- Jane Doe

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- John Doe

Schedule a Consultation Now!

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