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Aluminium Melting graphite crucible max to 2 tons

Short Description:

Discover the high-performance melting graphite crucible with superior crack resistance, excellent thermal conductivity, and extended durability. Save energy and boost productivity with our advanced silicon carbide graphite crucibles.


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 OD H ID BD
36 1050 715 720 620 300
37 1200 715 740 620 300
38 1300 715 800 640 440
39 1400 745 550 715 440
40 1510 740 900 640 360
41 1550 775 750 680 330
42 1560 775 750 684 320
43 1650 775 810 685 440
44 1800 780 900 690 440
45 1801 790 910 685 400
46 1950 830 750 735 440
47 2000 875 800 775 440
48 2001 870 680 765 440
49 2095 830 900 745 440
50 2096 880 750 780 440
51 2250 880 880 780 440
52 2300 880 1000 790 440
53 2700 900 1150 800 440
54 3000 1030 830 920 500
55 3500 1035 950 925 500
56 4000 1035 1050 925 500
57 4500 1040 1200 927 500
58 5000 1040 1320 930 500

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

Introduction:

Are you struggling with frequent replacements, high energy consumption, or poor performance in your metal smelting operations? Our melting graphite crucible made of isostatically pressed silicon carbide graphite is the ideal solution to enhance your efficiency and productivity. Say goodbye to cracking, dissolution loss, and oxidation issues with ordinary graphite crucibles, and upgrade to a product designed for industrial durability and energy savings.

Melting Graphite Crucible size

Material: Silicon Carbide Graphite – Performance You Can Rely On

Our crucibles are made from silicon carbide graphite, a material renowned for its:

  • Superior Crack Resistance: Able to withstand sudden temperature changes without breaking, unlike conventional graphite crucibles.
  • Corrosion Resistance: Resistant to molten metals and harsh chemicals, maintaining structural integrity over time.
  • Oxidation Resistance: Extended service life due to high resistance to oxidation in high-temperature environments.

By utilizing isostatic pressing, we ensure that every crucible is free from internal defects and uniform in density, providing the strength needed for demanding industrial applications.


Performance and Features:

Our melting graphite crucible is designed to surpass the limitations of traditional graphite products. Here are the key performance features:

  • Excellent Crack Resistance: Withstand rapid temperature changes and mechanical stresses, reducing the likelihood of cracking and breakage.
  • Dissolution Loss Resistance: Ensures minimal material loss even when working with highly reactive metals.
  • Oxidation Resistance: Extended service life even in high-temperature, oxygen-rich environments.

Energy Efficiency and Cost Savings:

Our silicon carbide graphite crucible is designed with efficiency in mind. Its high thermal conductivity allows for rapid and uniform heat distribution, shortening the melting time and saving up to 1/3 of energy compared to ordinary crucibles.

Not only does this reduce operational costs, but it also makes the smelting process more environmentally friendly by lowering overall energy consumption.


Long Service Life and Durability:

We back our product with a 6-month guarantee when used under recommended conditions, offering peace of mind and long-lasting durability. The advanced materials used in our crucibles extend their service life significantly, reducing the need for frequent replacements and ensuring that your operations run smoothly.


Boost Productivity and Efficiency:

By reducing downtime associated with crucible replacements and minimizing energy costs, our melting graphite crucible helps streamline your operations, leading to increased productivity. The crucible’s resilience to cracking, oxidation, and corrosion ensures that it can withstand even the most demanding industrial conditions.


Customization Options:

We understand that every smelting operation has unique needs. That's why our melting graphite crucible is available in various sizes and shapes, ensuring compatibility with a wide range of furnaces. Whether you're working with aluminum, copper, or other non-ferrous metals, we offer tailored solutions to meet your specific requirements.

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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