مميزات خاصة

💪【High Purity Graphite Crucible 】SIZE -- Options: 1kg, 2kg, 3kg. 1PCS graphite crucible. ideal for large-scale jewelry casting, bullion refining, & non-ferrous metal smelting.
✅【Industrial-Grade Grooved Design】Deeper grooves ensure secure furnace extraction & zero metal adhesion – save precious alloys & eliminate material waste during gold/silver/copper casting.
🔥【Ultra-High Purity Natural Graphite】99.9% Refractory-Grade Carbon delivers superior thermal conductivity (reduces melting time) + low thermal expansion (prevents cracks at 1800°C/3272°F).
🛡️【Glazed Anti-Corrosion Surface】Specialized ceramic coating resists slag erosion & metal oxidation, extending crucible lifespan by 3X vs standard graphite molds.
🌡️【Extreme-Temperature Resilience】Vacuum/Gas Furnace Ready: Withstands 5000°F (2760°C) | Electric Kiln Use: Stable at 3200°F (1760°C) – perfect for platinum melting & high-alloy casting.

وصف

Double-Ring Graphite Crucible (1kg/2kg/3kg):
✅ 1kg Capacity → 0.6kg 24K Gold / 1.1kg Fine Silver / 0.8kg Copper (Precision Small Jewelry)
✅ 2kg Capacity → 1.6kg 24K Gold / 2.2kg Fine Silver / 1.2kg Platinum (K-Gold & Ingot Production)
✅ 3kg Capacity → 2.8kg 24K Gold / 3.5kg Fine Silver / 3kg Brass (Industrial Precious Metal Refining)
🔥 Double Anti-Stick Grooves × 1800°C Corrosion Resistance × 200+ Furnace Cycles Lifespan!

Core Product Features：
Industrial Grooved Design：
Deep-tread grooves prevent metal adhesion + enable one-handed furnace extraction.
→ Reduce precious metal waste by 95% vs smooth crucibles.

Grade Thermal Performance：
-Withstands 5000°F (2760°C) in vacuum/gas furnaces.

Ceramic-Glazed Longevity：
Proprietary-coating provides 3X lifespan vs standard crucibles.
→ 200+ melts guaranteed with proper maintenance.

Precision Metallurgy Ready：
99.97% carbon purity → Zero contamination in gold refining.
Boron nitride-ready surface for copper/platinum alloys.

مرحبًا،

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