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Resin Bonded Crucibles Combining Silicon Carbide and Clay Graphite

Short Description:

Our Resin Bonded Silicon Carbide Crucibles are specifically engineered for high-temperature melting and alloy production processes. Combining the excellent thermal conductivity of silicon carbide with the durability of resin bonding, these crucibles deliver outstanding performance in both ferrous and non-ferrous metal melting applications.


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.

 

silicon carbide graphite crucible
silicon carbide graphite crucible

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.

silicon carbide graphite crucible

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

CU210 570# 500 605 320
CU250 760# 630 610 320
CU300 802# 800 610 320
CU350 803# 900 610 320
CU500 1600# 750 770 330
CU600 1800# 900 900 330

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

In metal melting operations, the choice of crucible can make a significant difference in performance, energy savings, and the quality of the final product. Our resin bonded crucibles, made from silicon carbide graphite material, are designed to meet the rigorous demands of the metalworking industry, offering superior durability and efficiency compared to traditional crucibles.


Material and Manufacturing: Why Resin Bonded Crucibles Stand Out

Our resin bonded crucibles are manufactured using isostatically pressed silicon carbide graphite, a material known for its superior strength and thermal properties. The resin bond enhances the crucible's ability to withstand high temperatures and chemical reactions, making it a versatile tool for a wide range of metal melting applications.

  • Isostatic pressing ensures uniform density and eliminates internal defects.
  • Resin bonding technology provides enhanced resistance to cracking and oxidation.

Key Features and Benefits:

1. Thermal Shock Resistance
Our resin bonded crucibles are designed to handle rapid temperature fluctuations without cracking. This significantly extends their lifespan, reducing the need for frequent replacements in high-temperature operations.

2. High Thermal Conductivity
Thanks to the excellent heat transfer properties of graphite, these crucibles melt metals faster, reducing energy consumption and allowing for precise temperature control—essential in industries like casting and refining.

3. Corrosion and Oxidation Resistance
The resin bond strengthens the crucible’s resistance to chemical reactions, oxidation, and corrosion. This means that even in harsh conditions, the crucible will maintain its integrity, ensuring the purity of the molten metal.

4. Lightweight and Easy Handling
Compared to traditional crucibles, our resin bonded models are lighter, making them easier to handle and enhancing overall operational efficiency.

5. Cost-Effective Durability
With their longer lifespan and reduced need for replacements, resin bonded crucibles are a cost-effective solution for high-temperature applications.

6. Reduced Metal Contamination
Non-reactive graphite minimizes contamination risks, making these crucibles ideal for applications that require high-purity metal production.

Usage Instructions for Maximum Efficiency:

To ensure optimal performance and longevity of your resin bonded crucible, follow these simple guidelines:

  • Preheat the crucible slowly to avoid sudden thermal shock, which can shorten its lifespan.
  • Always ensure the crucible is clean and free from contaminants before each use to prevent impurities from affecting the metal.
  • Maintain recommended operating temperatures based on the metal you’re working with to extend the crucible’s service life and improve efficiency.
  • Why Choose an Induction Melting Furnace?

    Unmatched Energy Efficiency

    Have you ever wondered why induction melting furnaces are so energy-efficient? By inducing heat directly into the material rather than heating the furnace itself, induction furnaces minimize energy loss. This technology ensures that every unit of electricity is utilized efficiently, translating into significant cost savings. Expect up to 30% lower energy consumption compared to conventional resistance furnaces!

    Superior Metal Quality

    Induction furnaces produce a more uniform and controlled temperature, leading to a higher quality of the molten metal. Whether you're melting copper, aluminum, or precious metals, the induction melting furnace ensures that your final product will be free of impurities and have a more consistent chemical composition. Want high-quality casts? This furnace has got you covered.

    Faster Melting Time

    Do you need faster melting times to keep your production on track? Induction furnaces heat metals quickly and evenly, allowing you to melt large quantities in less time. This means faster turnaround times for your casting operations, increasing overall productivity and profitability.

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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