DESY, Hamburg, Germany
| Paper | Title | Page |
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| MOPE27 | The Influences of Material Properties to Micro Damages on Vacuum Chamber CF Flanges | 63 |
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| 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 onμdamages 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 suchμdamages will be given. | ||
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Poster MOPE27 [0.187 MB] | |
| DOI • | reference for this paper ※ https://doi.org/10.18429/JACoW-MEDSI2016-MOPE27 | |
| About • | paper received ※ 09 September 2016 paper accepted ※ 23 September 2016 issue date ※ 22 June 2017 | |
| Export • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |