graphite permanent casting mold
It is used for gold, silver and other jewelry casting and recasting.
It is used for gold, silver and other jewelry casting and recasting.
- Well thermal stability : according to the using conditions of graphite crucible snap heat and cold;
- Well corrosion resistance, impact resistance performance, to ensure the reliability of product quality;
- Well resistance to strong acid, strong alkali;
- Good heat transfer performance of graphite crucible: for greatly shorten the melting time and save energy;
- In high-temperature using process, it got small thermal expansion coefficient;
- Technical Index
Type MSL80 MSS80 MSL85 MSS85 Grain Size (μm) 25 25 25 25 Bulk Density (≥g/cm3) 1.82 1.82 1.85 1.85 Compressive Strength (≥MPa) 60 60 70 70 Flexural Strength(≥MPa) 30 30 35 35 Porosity(≤%) 21 21 18 18 Specific Resistance(≤μΩm) 12 12 12 12 Ash Content(≤%) 0.08 0.08 0.08 0.08 Shore Hardness 48 48 50 50
corrosion-resistant Graphite Crucible for Metling Gold Silver Jewelry Metal
graphite permanent casting mold