Best Crucible For Copper casting and long service life

Short Description:

The Best Crucible for Copper represents a reliable solution for metalworkers and foundry professionals seeking superior performance in high-temperature applications. Its combination of heat resistance, thermal conductivity, and corrosion resistance makes it an indispensable tool for achieving excellence in copper melting and casting. For more information or to discuss your specific requirements, please contact us today to elevate your metalworking processes.

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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.

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.

TECHNICAL SPECIFICATIONS

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

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PROCESS FLOW

1. Precision Formulation

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

2.Isostatic Pressing

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

3.High-Temperature Sintering

SiC particle recrystallization forming 3D network structure

4. Surface Enhancement

Anti-oxidation coating → 3× improved corrosion resistance

5. Rigorous Quality Inspection

Unique tracking code for full lifecycle traceability

6. Safety Packaging

Shock-absorbent layer + Moisture barrier + Reinforced casing

PRODUCT APPLICATION

Gas Melting Furnace

Induction Melting Furnace

Resistance Melting Furnace

WHY CHOOSE US

High Heat Resistance: The ideal crucible for melting copper must withstand temperatures exceeding 1,600°C. Graphite silicon carbide crucibles are renowned for their exceptional high-temperature resistance, ensuring they remain structurally sound during the melting process.
Excellent Thermal Conductivity: Effective heat transfer is crucial for the efficient melting of copper. The graphite silicon carbide material allows for rapid and uniform heat distribution, significantly improving smelting efficiency and reducing processing time.
Corrosion Resistance: Copper melting processes often expose crucibles to acidic or alkaline substances. A high-quality crucible made from graphite silicon carbide boasts strong corrosion resistance, which extends its service life and minimizes the risk of contamination in the molten metal.
Mechanical Strength: Maintaining structural integrity under high temperatures is critical. The best crucibles for copper feature high mechanical strength, ensuring they do not deform or sustain damage during intense thermal conditions.
Stability During Use: Chemical and physical stability is essential to prevent unwanted reactions between the crucible and molten copper. This stability contributes to maintaining the purity of the molten metal, which is vital in producing high-quality copper products.

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.