The Influences of Material Properties to Micro Damages on Vacuum Chamber CF Flanges
| Autor: | Vilcins, Silke, Holz, Maximilian, Lemke, Martin, Nölle, Dirk, Wiebers, Christian |
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| Jazyk: | angličtina |
| Rok vydání: | 2016 |
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| Zdroj: | Geneve : JACoW 9 pp. (2016). doi:10.3204/PUBDB-2016-04878 Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation conference, MEDSI2016, Barcelona, Spain, 2016-09-11-2016-09-16 |
| Popis: | Mechanical Engineering Design of Synchrotron Radiation Equipment and Instrumentation conference, MEDSI2016, Barcelona, Spain, 11 Sep 2016 - 16 Sep 2016 ; 9 pp., (2016). The European-XFEL, a 3.3 km long X-Ray laser facility, powered by a 17.5 GeV superconducting linear accelerator, is located at DESY in Hamburg [1]. For the diagnostics ultra-high vacuum components with high mechanical precision and strict requirements on particle cleanliness had to be developed, designed and produced. For the screen system of the facility, enabling to observe the size and shape of the electron beam, massive vessels, precisely milled out of stainless steel blocks 1.4435 (316L) have been produced. For these chambers all flange-connections are milled into these blocks. This paper will report on micro damages in these integrated knife edges and will present simulations of the damage mechanisms. It will also describe the influences of material properties of two different stainless steel brands, effects on the “knife edge” due to the penetration into the gaskets as well as the non-elastic deformation of the sealing area. The dependence of tightening forces under special conditions, like the very clean conditions in particle free applications due to the non-lubricated conditions will be reported. A “cooking recipe” to avoid such micro damages will be given. Published by JACoW, Geneve |
| Databáze: | OpenAIRE |
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