High-Purity Graphite Sintering Mold for Jewelry Ingot Casting
Premium industrial-grade graphite mold designed for precision jewelry ingot production, ensuring flawless metal casting with ultra-smooth finishes. High-density isotropic graphite construction maximizes thermal conductivity (160-180 W/m·K) and heat resistance (up to 3000°C), preventing cracks during repeated sintering cycles. CNC-machined cavity with 0.02mm tolerance for consistent ingot dimensions (custom sizes available), ideal for gold/silver/platinum bars, dental alloys, and lab samples. Non-stick surface eliminates metal adhesion, reducing post-processing time. Compatible with vacuum/argon sintering furnaces. Wholesale bulk pricing—order 50+ units for extra 15% discount. Ships globally in 3-5 days with quality certification.