Pressure Vessel - Selection of Material and Manufacturing Process
Manufacturing of Large UHV Vessel
Transcript of Manufacturing of Large UHV Vessel
Manufacturing of Large UHV Vessel
Xavier Sauge and Sylvain Blanchard
SDMS, Saint-Romans, France
[email protected] 1° GEOMETRICAL SHAPE AND MAIN CHARACTERISTCS 2°ASSUMPTION AND CALCULATION RESULTS
- Calculation method by means of finite element analysis such as ANSYS 3° MATERIAL AND SURFACE PREPARATION 4° CONSTRUCTION METHOD
- Shop manufacture and site works 5° PERFORMANCES TO BE EXPECTED
- Expected outgassing rate 6° MAGNETIC PERMEABILITY 7° SIZE OPTIMISATION AND PRECAUTION 8° WELDING CONSIDERATIONS IN RESPECT WITH UHV CONDITIONS
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SDMS SDMS Xavier SAUGEXavier SAUGE
Sylvain BLANCHARDSylvain BLANCHARD
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Manufacturing Manufacturing of of large UHV large UHV vesselsvessels
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PlanPlan
nn SDMS SDMS presentationpresentationnn General General informationsinformationsnn Achievements Achievements (ALCATEL, VIRGO)(ALCATEL, VIRGO)nn TritiumTritium--ββ spectrometerspectrometer
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A A few few figuresfigures
nn FoundedFounded in 1962 in 1962 nn Located near Located near Grenoble (France)Grenoble (France)nn IssuedIssued capital 1 114 000 Euroscapital 1 114 000 Eurosnn TurnoverTurnover 2002 : 13 000 000 2002 : 13 000 000 EurosEuros
(50% (50% exportexport))nn WorkforceWorkforce : 100: 100
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SDMSSDMS(19000 m(19000 m22))
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SDMSSDMS(19000 m(19000 m22))
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Workshop J Workshop J (20 tons & (20 tons & controlledcontrolled atmatm.).)
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Workshop Workshop CC(50 tons)(50 tons)
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Workshop Workshop HH((clean clean room)room)
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Quality Quality AssuranceAssurance
ISO 9001 since 2001by BVQI
ISO 9002 from 1992 to 2001 by AFAQ
Certified AD - HP0 by the TÜV Saarland (Germanstandards)
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PlanPlan
nn SDMS SDMS presentationpresentation
nn GeneralGeneral informationsinformationsnn Achievements Achievements (ALCATEL, VIRGO)(ALCATEL, VIRGO)nn TritiumTritium--ββ spectrometerspectrometer
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Process Process CleanlinessCleanliness
nn Not for an attractive Not for an attractive appearance appearance : to: to fulfilfulfil the the requirementsrequirementsnn Cleanliness during procurement Cleanliness during procurement and and manufacturingmanufacturingnn Qualified machining process Qualified machining process ((oilsoils))nn Materials cleaning Materials cleaning
(tests (tests and experienceand experience))–– degreasing degreasing / / rinsing rinsing / / alkaline alkaline solution / solution / rinsing rinsing / / Drying Drying / / BakeBake--
outoutnn Cleanliness Cleanliness
duringduring the the assemblyassembly -- clean clean roomsrooms -- handlinghandling withwith glovesgloves -- tools tools --strapsstraps......
nn ShipmentShipmentnn At each At each stage (contamination, scratch…) stage (contamination, scratch…)
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Materials and surfacesMaterials and surfaces
nn Use of stainless steel X2CrNi 18Use of stainless steel X2CrNi 18--9 (1.43079 (1.4307-- 304L) or 304L) or X2CrNiMo 17X2CrNiMo 17--1212--2 (1.44042 (1.4404-- 316L) or 316L) or 1.4429 (X2CrNiMoN 171.4429 (X2CrNiMoN 17--1313--3) or 1.4406 (X2CrNiMoN 173) or 1.4406 (X2CrNiMoN 17--1111--2)2)
nn Mechanical polishing of plates in order to obtain a surface Mechanical polishing of plates in order to obtain a surface roughness value about 0.6 roughness value about 0.6 -- 0.80.8µµ (beginning)(beginning)
nn ElectropolishingElectropolishing of plates in order to obtain a final surface of plates in order to obtain a final surface roughness value about 0.2roughness value about 0.2µµ à 0.4à 0.4µµ
nn Cleaning (cleaning workshop)Cleaning (cleaning workshop)nn Baking at 400°C during 7 to 10 daysBaking at 400°C during 7 to 10 days
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PerformancesPerformances
nn Leak Leak rate (< 10rate (< 10--1212 mbar l / s mbar l / s withwith RGA)RGA)nn OutgassingOutgassing
–– see see SDMSSDMS bookletbooklet «« Outgassing Outgassing -- Results and Economic Results and Economic ConsequencesConsequences -- SDMSSDMS »»
–– Materials Materials / / RoughnessRoughnessnn Magnetic permeabilityMagnetic permeabilitynn Dimensional requirementsDimensional requirements
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PlanPlan
nn SDMS SDMS presentationpresentationnn General General informationsinformations
nn AchievementsAchievements(ALCATEL, VIRGO)(ALCATEL, VIRGO)
nn TritiumTritium--ββ spectrometerspectrometer
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SDMS SDMS achievementsachievementsnn VIRGO UHV VIRGO UHV chambers chambers (UHV / (UHV / Outgassing Outgassing rate)rate)nn ALCATEL SPACE INDUSTRIES simulation ALCATEL SPACE INDUSTRIES simulation chamber chamber (dimensions)(dimensions)
– Manufacturing process (quality plan)– Dimensional requirements (flanges)– Gaskets (HELICOFLEX)– Outgassing (oven, procedure)– Helium tests, RGA– Pumping system
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LAPPLAPP
nn VIRGO (18 tons)VIRGO (18 tons)nn Date : 05/98Date : 05/98nn 10 10 chamberschambers 20m20m33
nn GravitationalGravitational waveswavesmeasurementsmeasurements
nn UNS S30400 (304) UNS UNS S30400 (304) UNS S30403 (304L)S30403 (304L)
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LAPP (idem)LAPP (idem)
nn 1010--1010 mbarmbarnn MecanicalMecanical andand inner inner
electropolishingelectropolishing
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LAPP (idem)LAPP (idem)
nn HT 400°C (200 h)HT 400°C (200 h)nn OutgassingOutgassing rate rate
–– 1010--1414 mbar l / s . Cmmbar l / s . Cm22
nn On site :On site :–– BakeBake--out 150°Cout 150°C
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Alcatel Alcatel Space Space IndustriesIndustries
nn 130m130m33 Simulation Simulation chamberchamber
nn 5m in 5m in diameterdiameternn HELIOS 1HELIOS 1nn Ra Ra 0.8µm0.8µm
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Alcatel Alcatel Space Space IndustriesIndustries
nn ChamberChamber 450 m450 m33
nn Date : 12/97Date : 12/97nn UNS S30403 / 304L / UNS S30403 / 304L /
1.43071.4307nn Internal diameterInternal diameter : 6m: 6mnn Total Total LengthLength : 16m: 16mnn ThicknessThickness 15mm15mmnn HELIOS2 tests (HELIOS2 tests (launched by launched by
ARIANE5)ARIANE5)nn CleanClean roomroom classclass 100100
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AlcatelAlcatel SpaceSpace(1/10th(1/10th scalescale model)model)
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Flange Flange ((lowerlower))
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Wall Wall plates on plates on jigjigprotected protected by plastic layerby plastic layer (class 100)(class 100)
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Lower Lower part part (class 100 (class 100 insideinside))
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Upper and Upper and middle partsmiddle parts
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HandlingHandling
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CranesCranes
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ShipmentShipment
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PlanPlan
nn SDMS SDMS presentationpresentationnn General General informationsinformationsnn Achievements Achievements (ALCATEL, VIRGO)(ALCATEL, VIRGO)
nn TritiumTritium--ββ spectrometerspectrometer
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nn GEOMETRICAL SHAPE AND MAIN CHARACTERISTCSGEOMETRICAL SHAPE AND MAIN CHARACTERISTCSnn ASSUMPTION AND CALCULATION RESULTS ASSUMPTION AND CALCULATION RESULTS
–– Calculation method by means of finite element analysis such as ACalculation method by means of finite element analysis such as ANSYSNSYSnn MATERIAL AND SURFACE PREPARATIONMATERIAL AND SURFACE PREPARATIONnn CONSTRUCTION METHODCONSTRUCTION METHOD
–– Shop manufacture and site worksShop manufacture and site worksnn PERFORMANCES TO BE EXPECTEDPERFORMANCES TO BE EXPECTED
–– Expected Expected outgassingoutgassing rateratenn MAGNETIC PERMEABILITYMAGNETIC PERMEABILITYnn SIZE OPTIMISATION AND PRECAUTIONSIZE OPTIMISATION AND PRECAUTIONnn WELDING CONSIDERATIONS IN RESPECT WITH ULTRAWELDING CONSIDERATIONS IN RESPECT WITH ULTRA--VACUUM VACUUM
CONDITIONSCONDITIONS
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General drawingGeneral drawing
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Updated General DrawingUpdated General Drawing
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DetailsDetails
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Updated DetailsUpdated Details
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Lower Lower partpart
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Upper Upper partpart
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SupportSupport
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AssemblyAssembly
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ResultsResultsnn CODAP / Working temperature at 400°CCODAP / Working temperature at 400°C
nn SHELL Ø7000 / 20 mmSHELL Ø7000 / 20 mmnn STIFFENING RINGS / 200 x 40 STIFFENING RINGS / 200 x 40 nn CONICAL SHELL / 20 mmCONICAL SHELL / 20 mmnn STIFFENING RINGS / 200 x 40 STIFFENING RINGS / 200 x 40 nn HEMIHEMI--HEADHEAD / 15 mm/ 15 mm
nn SHELL Ø1000 / 10 mmSHELL Ø1000 / 10 mm
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Manufacturing processManufacturing process
nn Hot rolled plates (thickness >6mm)Hot rolled plates (thickness >6mm)nn Mechanical polishing (+ plastic layer)Mechanical polishing (+ plastic layer)nn Cutting / FormingCutting / Formingnn Assembly using a Assembly using a specific jigspecific jig ( the protective plastic layer is ( the protective plastic layer is
kept during manufacturing operations)kept during manufacturing operations)nn Nozzles DN1500, DN1000 and othersNozzles DN1500, DN1000 and othersnn Manufacture of a specific tool for site assembly worksManufacture of a specific tool for site assembly worksnn Transportation and assembly on site, tests and adjustmentsTransportation and assembly on site, tests and adjustments
–– WeldingWelding–– ElectropolishingElectropolishing–– Final cleaningFinal cleaning
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Conclusions Conclusions
nn Outgassing Outgassing rate : 10rate : 10--1313 mbar.l.smbar.l.s--11.cm.cm--22 after several baking after several baking treatments at the temperature of 400°Ctreatments at the temperature of 400°C
nn Leak rate < 10Leak rate < 10--1212 mbar l / smbar l / snn Magnetic permeability : Magnetic permeability :
–– 1.4429 X2CrNiMoN 171.4429 X2CrNiMoN 17--1313--3 or 1.4406 X2CrNiMoN 173 or 1.4406 X2CrNiMoN 17--1111--22–– 1.4307 or 1.44041.4307 or 1.4404
nn AknowledgementsAknowledgements ::
–– SDMS staffSDMS staff–– VIRGO staff (Mr MUGNIER)VIRGO staff (Mr MUGNIER)
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SDMSSDMSThank you Thank you for for your your
attentionattention