High-Purity Graphite Crucible | Special for Melting Gold and Silver ingots | Resistant to high Temperature up to 3000℃ Without Sticking | with Handle (4-Hole Water-Drop Type)

💖✨ Full coverage of application scenarios - Gold and silver bars/coins casting: Smooth surface without pores, with distinct edges and corners. - Jewelry recycling: 5-minute rapid smelting of old materials, thorough separation of impurities, and excellent fluidity of gold water. - Laboratory precious metal purification: 99.99% purity compatible with rare metals such as platinum and palladium, research-grade reliable. - Laboratory analysis: Purification of semiconductor materials, high-temperature reaction vessels.💖⚠ Instructions for Use - First-time usage suggestion: Bake at low temperature for 2 hours to activate the antioxidant layer and extend the lifespan by 30%. Preheating: For the first use, heat slowly at 200℃ for 10 minutes to avoid thermal shock. 2. Smelting: The amount of metal loaded should not exceed 80% of the crucible volume. The recommended temperature for gold is 1064℃, and for silver it is 961℃. 3. Demolding: Tilt the handle to pour out the molten metal. After the ingot mold cools naturally, it will fall off by tapping gently without the need for a demolding agent. 4. Cleaning: Empty heat until the residue carbonizes, then wipe it clean with a soft cloth.

• 💖💎. Extreme heat resistance Melting point: 3850℃, its strength doubles in intense fire! At a high temperature of 2000℃, the structure is more stable, does not soften or deform, and makes smelting gold and silver more reassuring.
• 💖💎. High purity - Carbon content ≥99.99%**, ash content only 0.005%, eliminating oxygen impurities in the molten metal and ensuring the purity of gold and silver fineness. The surface is smooth and non-permeable, with strong chemical inertness, and it resists impurity residue and metal adhesion.
• 💖💎. Corrosion-resistant; Resistant to acid and alkali - Chemical inertness protection: Resistant to corrosion by acids, alkalis and organic solvents. No chemical reaction occurs during the smelting process, and the metal recovery rate is as high as 99.9%.
• 💖💎. High thermal conductivity and self-lubrication The thermal conductivity is 130 W/m·K, and the heating rate is three times faster than that of metal molds, saving time and energy. The self-lubricating flake structure makes demolding as smooth as silk, and the surface of the gold ingot is clean and flawless, eliminating the need for secondary grinding.
• 💖💎. Industrial precision design - Three-high graphite process (high density 1.88g/cm³, high strength, high purity), wear-resistant and pressure-resistant, with a service life extended by five times. The one-piece formed anti-heat handle provides a comfortable grip, allowing for quick disassembly of the ingot mold. No pliers are needed during operation, and it is splash-proof and anti-slip.