Heraeus Quarzglas Gmbh & Co Kg

Heinz Bauscher

Klaus Ruppert

Christian Neumann

Boris Gromann

Lothar Huefner

In a known drawing method for producing a cylindrical component from quartz glass, a quartz glass strand () is continuously drawn off from a softened quartz glass composition () vertically downwards in the drawing direction (), a piece () with a weight G is detached from the free end of the strand at a time tand the cylindrical component is produced from the piece (). When the piece () is detached, there may be a sudden reduction in weight, which leads to fluctuations in the thawing-off control. To counteract this, it is proposed according to the invention that a weight compensating force which acts counter to the drawing direction (), increases over time and completely or partially compensates for the weight G of the piece (), is applied to the piece to be detached at a time tbefore t

Drawing method for producing cylindrical components from quartz glass

An equalization chamber has a first plurality of gas inlet openings for a gas stream and a second plurality of gas outlet openings for partial gas streams, each outlet being connected by way of a gas line to a gas consumer, the maximum flow resistance for each partial gas stream being located in the area under the gas outlet openings, seen in the flow direction of the partial gas streams. To guarantee the highest possible degree of uniformity and reproducibility of the gas supply to the consumers, the maximum flow resistance for each partial gas stream is provided in the gas line between the gas outlet opening and the gas consumer.

Growing community of inventors

Langenselbold, Germany

Heinz Bauscher