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Graphite crucible with lid for gold melting

Short Description:

√ Superior corrosion resistance, precise surface.
√ Wear-resistant and strong.
√ Resistant to oxidation, long-lasting.
√ Strong bending resistance.
√ Extreme temperature capability.
√ Exceptional heat conduction.


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.

Carbon Crucible are the unsung heroes of metal casting. In fact, they play a vital role in handling some of the toughest melting challenges in foundries and high-temperature environments. Did you know that these crucibles can withstand extreme temperatures of over 1600°C? That’s no small feat! Their durability, combined with exceptional thermal conductivity, makes them indispensable in the world of metalwork.

Our mission will be to become an innovative supplier of high-tech digital and communication devices by furnishing benefit added structure, world-class manufacturing, and service capabilities for Carbon Crucible, Our company will continue to adhere to the " superior quality, reputable, the user first " principle wholeheartedly. We warmly welcome friends from all walks of life to visit and give guidance, work together and create a brilliant future!
Carbon Bonded Silicon Carbide Crucibles are widely used in the smelting and casting fields of different non-ferrous metals such as copper, aluminum, gold, silver, lead, zinc and alloys. The use of these crucibles results in consistent quality, long service life, greatly reduced fuel consumption and labor intensity. In addition, it improves work efficiency and provides excellent economic benefits.

Advantages of Graphite Crucibles with Lids

  1. Improved Thermal Efficiency: The lid reduces heat escape, ensuring faster melting times and energy savings.
  2. Oxidation Resistance: The lid also prevents excessive oxidation, maintaining the purity of molten metals.
  3. Extended Lifespan: Graphite crucibles are known for their durability, resisting thermal shock and corrosion.
  4. Application Versatility: These crucibles are used in both small and large-scale industrial smelting operations, making them adaptable for different needs.

Practical Applications

Graphite crucibles with lids are essential for various non-ferrous metal smelting processes. Their excellent thermal and chemical properties make them indispensable for:

  • Metallurgy: Smelting alloy steels and non-ferrous metals like copper and aluminum.
  • Casting: Producing high-quality castings with minimal impurities.
  • Chemical Engineering: In processes requiring heat resistance and chemical stability.

    Company Advantages

    We combine traditional craftsmanship with cutting-edge technology to produce graphite crucibles with lids that meet the highest industry standards. Our advanced production techniques enhance the oxidation resistance and thermal conductivity of our crucibles, ensuring longer lifespans and better performance. With over 20% longer life expectancy than competing products, our crucibles are ideal for aluminum casting and smelting applications.

  • Partner with us for reliable, high-performance crucibles tailored to your specific foundry needs. Contact us today to learn more!
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:Where can I obtain product and price information?

Send us an inquiry via email or contact us on the provided chat applications. We will respond promptly with detailed information.

Q8:How is shipping handled?

We transport goods to the port via truck or load them in containers directly at our factory.

Q9:Are you a factory or a trading company?

We are a direct-operated factory with advanced machinery and a 15,000 square meter workshop, employing around 80 skilled workers.

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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