Verfahren zur Herstellung von Quarzglaskörpern

摘要

The invention concerns a method of producing quartz glass bodies by depositing SiO2 particles on the cylindrical generated surface of a cylindrical carrier rotating about its longitudinal axis, an elongate porous preform being produced. The SiO2 particles are formed in a plurality of precipitating burners which are disposed in at least one row extending parallel to the longitudinal axis of the carrier, the row of burners being moved at a predetermined translation speed in a reciprocating manner between turning points at which their direction of movement is reversed, and the resultant preform being sintered. According to the invention, the basic value of the surface temperature of the preform in the process of forming is maintained at between 1050 DEG C and 1350 DEG C, the average peripheral speed of the preform is maintained at between 8 m/min and 15 m/min, and the average translation speed of the burner row is maintained at between 300 mm/min and 800 mm/min.