PIMS IN INSTITUTE FOR NUCLEAR STUDIES Brazing Andrzej Soltan Institute for Nuclear Studies.
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Transcript of PIMS IN INSTITUTE FOR NUCLEAR STUDIES Brazing Andrzej Soltan Institute for Nuclear Studies.
![Page 1: PIMS IN INSTITUTE FOR NUCLEAR STUDIES Brazing Andrzej Soltan Institute for Nuclear Studies.](https://reader035.fdocuments.in/reader035/viewer/2022062517/56649f1b5503460f94c3050a/html5/thumbnails/1.jpg)
PIMS IN INSTITUTE FOR NUCLEAR STUDIES
Brazing
Andrzej Soltan Institute for Nuclear Studies
![Page 2: PIMS IN INSTITUTE FOR NUCLEAR STUDIES Brazing Andrzej Soltan Institute for Nuclear Studies.](https://reader035.fdocuments.in/reader035/viewer/2022062517/56649f1b5503460f94c3050a/html5/thumbnails/2.jpg)
Furnace
Diameter: 650mmLength: 2000mmMax. temperature: 1150°CTemperature flatness: ±5°CVacuum level: better then 1x10-6 mbar in 850°CMax weight of brazing elements: 250 kgLeak rate: 3x10-3mbar*l/sVentilation: pressured nitrogenTemperature growth speed:
0÷850°C – 1h850÷1150°C – 1h
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Furnace…
Control system:• based on Siemens PLC controller• steering with touch screen• cell phone alarm system
Pumping system:•Based on dry pumps•Low Vacuum : Root’s pump with rotary pump•High Vacuum: CoolVac – cryogenic pump•Pumping system manufacturer: Leybold•Pumping speed
•Mechanical pumps: 1250m3/h•Cryogenic pump: 10000 l/s
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Leak rate detection
By Helium detector
By mass spectrometryEquipment: Varian PD03 Helium detector
mobile and stationary versionParameters:•Leak rate: 5x10-12Pa*m3/sec•Maximum test port pressure: 13 mbar•Pumping speed:
•Combo pump (scroll and diaphragm): 3m3/h•Turbomolecular pump: 1.8 l/s (helium)
Equipment: Pfeiffer PrismaPlus Type: quadrupoleMass range: 0-300 AMUSpecial function: leak detector for all masses of HeliumMaximum test port pressure: 1x10-4mbar
![Page 5: PIMS IN INSTITUTE FOR NUCLEAR STUDIES Brazing Andrzej Soltan Institute for Nuclear Studies.](https://reader035.fdocuments.in/reader035/viewer/2022062517/56649f1b5503460f94c3050a/html5/thumbnails/5.jpg)
Pumping system
Stationary Mobile•Manufacturer: Varian•Type: Mobile pumping station•Pumping system: dry pumps
•Turbomolecular pump: Turbo V-301•Scroll pump: SH110•Vacuum gauge full range: FRG-700
•Manufacturer: Varian•Type: TPS-compact•Pumping system: dry pumps
•Turbomolecular pump: Turbo V-81•Scroll pump: IDP-3•Vacuum gauge full range: FRG-700
![Page 6: PIMS IN INSTITUTE FOR NUCLEAR STUDIES Brazing Andrzej Soltan Institute for Nuclear Studies.](https://reader035.fdocuments.in/reader035/viewer/2022062517/56649f1b5503460f94c3050a/html5/thumbnails/6.jpg)
Questions
Water pressure test: for a clean level would it be better to use a pressured gas (helium)?
Cleaning before brazing: cleaning, maybe electropolishing (especially before nickel-plating)?