Quartz, Glass

To produce quartz glass, quartz sand is filled into a vertical furnace. The material is melted in crucibles located inside the furnace and drawn through a nozzle to form rods or plates. When producing quartz glass rods, a mandrel shaft is also used. At temperatures of 2200 °C (3992 °F), the material properties of many metals are compromised. By producing the entire heating unit using these refractory metals, we avoid any problems associated with other metals.