A Positioning Device for CF Flange Gaskets
CF flanges are well-established components for building ultra-high-vacuum environments. There are several geometries of the tubes that follow the ISO/TS 3669-2 standard, so that the costumer can combine products from different companies.
Nevertheless, a rather tricky task remains: For sealing the contact points between two different CF flanges, the technician has to mount a thin gasket between the two outer ends of the flanges before tightening the bolts. The gasket is typically made of high purity copper. When tightening the bolts, the extruded metal leads to a leak-tight seal (see Figure 1). Mounting and positioning of the copper seal still remains manual work the technician has to fix the ring in the right position until the bolts hold the two flanges in place. Even if the technician is well trained, the gasket is likely to move and drop out when handling heavy components (pumps, evaporation devices, sections of the vacuum system, etc.). This is a waste of time and money the damaged copper gasket cant be reused.
Our new positioning device eliminates the need for this tedious and rather complicated positioning of the sealing ring by hand.
Further information: PDF
Eberhard Karls Universität Tübingen
Phone: +49 (7071) 29-72639
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Dr. Rolf Hecker
As Germany's association of technology- and patenttransfer agencies TechnologieAllianz e.V. is offering businesses access to the entire range of innovative research results of almost all German universities and numerous non-university research institutions. More than 2000 technology offers of 14 branches are beeing made accessable to businesses in order to assure your advance on the market. At www.technologieallianz.de a free, fast and non-bureaucratic access to all further offers of the German research landscape is offered to our members aiming to sucessfully transfer technologies.
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