Our Location
Zhejiang,China
Quartz Ceramic Melting Gold Crucible Fused Silica Products for Precious Metals
Product Description
1.Quartz products for gold melting are made of fused silica.
2. Quartz products can withstand temperatures up to 1650 °C.
3. Chemical composition: SiO₂ 98.25%, Al₂O₃ 0.15%, Fe₂O₃ 0.13%
Product Features
1. The quartz ceramic does not deform easily in a pot, even during long melting cycles.
2.Quartz can withstand rapid heating and cooling cycles.
3.Because quartz is highly pure and inert, it reduces the risk of refractory particles contaminating the glass.
4.Quartz erodes slowly; it will provide a long service life.
Introduction to Quartz Products
Quartz ceramic is also referred to as fused silica ceramic or sintered fused silica products.
It exhibits excellent thermal shock resistance, low thermal conductivity, a low coefficient of thermal expansion, high-temperature resistance, and exceptional thermal stability, making it particularly ideal for applications in glass furnaces and glass manufacturing.
Quartz ceramic products offer the advantages of corrosion resistance, erosion resistance, zero contamination to glass products, and a long service life.
Chemical and Physical indicators
| Items | Unit | Enterprise standard | Directions |
|---|---|---|---|
| Si02 | % | ≥99.5-99.8 | |
| Volume density | g/cm³ | ≥1.85-2.0 | |
| Apparent porosity | % | ≤5-15 | |
| Cold crushing strength | Mpa | ≥50-120 | |
| Cold flexural strength | Mpa | ≥25 | |
| High-temperature flexural strength | Mpa | ≥28 | |
| Coefficient of thermal expansion | x10-6K-1 | <0.6 | |
| Thermal conductivity | w/m.℃ | 0.66 | |
| Operating temperature | ℃ | ≤1650 |
*If you would like to know about other clay recipes, please feel free to contact us!
