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Metal Melting Crucible Melting Aluminum for Casting

Short Description:

In the non-ferrous metal casting industry, the quality and efficiency of the melting process are key factors in producing high-grade metal products. Our Metal Melting Crucibles are specifically designed for professionals who work with non-ferrous metals such as aluminium, copper, zinc, and precious metals. These crucibles are crafted to provide superior heat resistance, durability, and chemical stability, ensuring they meet the demanding needs of industrial foundries and metal casting operations.


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

Our Metal Melting Crucibles are the ideal choice for professionals in the non-ferrous metal casting industry who demand high-performance, reliable, and cost-effective solutions for their melting processes. With superior thermal properties, chemical stability, and durability, these crucibles are designed to enhance productivity, improve metal quality, and reduce operational costs. When you choose our crucibles, you invest in a solution that ensures consistent results and long-lasting performance in your metal casting operations.

Material Composition and Key Properties

Our Metal Melting Crucibles are made from a premium blend of graphite and silicon carbide (SiC), materials chosen for their excellent thermal conductivity, mechanical strength, and resistance to corrosion.

  • Graphite-Silicon Carbide Composition: This combination ensures the crucibles can withstand extreme temperatures while maintaining structural integrity, making them perfect for melting a wide range of non-ferrous metals.
  • High Thermal Conductivity: The thermal conductivity of graphite allows for efficient heat transfer, resulting in faster melting times and uniform heat distribution, crucial for achieving consistent metal quality.
  • Resistance to Thermal Shock: Our crucibles offer outstanding resistance to thermal shock, meaning they can endure rapid temperature changes without cracking or warping, making them ideal for high-intensity metal casting processes.

High-Temperature Capabilities

Non-ferrous metals often require high temperatures to melt properly. Our crucibles are designed to handle temperatures up to 1600°C, making them suitable for a wide range of melting operations.

  • Operating Temperature Range: These crucibles can melt metals like aluminium (660°C), copper (1085°C), and zinc (419°C) while maintaining consistent performance even at extreme temperatures.
  • Longevity in High-Temperature Environments: The use of silicon carbide ensures that the crucible remains durable over multiple melting cycles, reducing the need for frequent replacements and keeping operational costs low.

Chemical Stability and Corrosion Resistance

In the smelting of non-ferrous metals, the crucible must be able to resist corrosion and chemical reactions with the molten material. Our Metal Melting Crucibles are designed with this in mind, offering excellent chemical stability and non-reactivity.

  • Non-Reactive to Molten Metals: The crucible’s graphite and SiC composition prevents unwanted reactions with molten metals, ensuring that the final product remains free from contaminants.
  • Corrosion Resistance: These crucibles resist oxidation and corrosion, which can occur when exposed to the aggressive environments of molten metals, thus extending the life of the crucible and maintaining metal purity.

Applications in the Non-Ferrous Metal Casting Industry

Our Metal Melting Crucibles are versatile and can be used in various applications within the non-ferrous metal casting industry:

  • Aluminium Casting: Suitable for melting and casting aluminium and its alloys, ensuring high-quality molten metal for casting components.
  • Copper and Bronze Casting: Perfect for use in copper, bronze, and brass melting operations, ensuring consistent and precisely controlled melts.
  • Precious Metal Casting: These crucibles are widely used in melting gold, silver, and platinum, offering smooth, contamination-free melts, critical for high-value metal casting.
  • Zinc Casting: Highly effective in the melting of zinc and its alloys, particularly for die casting applications in the automotive and electronics industries.

Benefits for Metal Casting Professionals

  • Faster Melting Cycles: The superior thermal conductivity of our crucibles ensures that metals melt faster, allowing for increased production efficiency.
  • Long Service Life: Our crucibles’ thermal shock resistance and corrosion resistance lead to longer lifespans, reducing downtime and costs associated with frequent replacements.
  • Improved Metal Quality: The non-reactive materials and smooth interior surfaces of the crucibles prevent metal adhesion and contamination, ensuring high-purity molten metal ready for casting.
  • Energy Efficiency: The high heat retention properties of graphite and silicon carbide reduce the energy required to maintain molten metal, leading to lower energy consumption in large-scale operations.

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:Are you certified by any professional organizations?

Our company boasts an impressive portfolio of certifications and affiliations within the industry. This includes our ISO 9001 certifications, which demonstrate our commitment to quality management, as well as our membership in several esteemed industry associations.

 Q8:What is graphite carbon crucible?

Graphite carbon crucible is a crucible designed with high thermal conductivity material and advanced isostatic pressing molding process, which has efficient heating capacity, uniform and dense structure and rapid heat conduction.

Q9: What if I only need a few silicon carbide crucibles and not a large quantity?

We can fulfill orders of any quantity for silicon carbide crucibles.

Case Study #1

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Testimonials

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- Jane Doe

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