Rice.1. Stainless Steel Weld Manufacturing Inspection Method: Ob chav 2D Matrix los ua ke hauv TRL hom.

Codes, stanadards, thiab txoj kev tau hloov zuj zus mus tso cai rau kev siv cov phased array ultrasonic kuaj (PAUT) es tsis txhob RT rau kuaj austenitic welds.Thawj qhov dav siv nyob rau hauv nuclear fais fab nroj tsuag yuav luag 15 xyoo dhau los, kev siv dual (2D) array sensor sib dhos tau kis mus rau cov roj thiab roj thiab lwm yam lag luam uas ceev, txhim khu kev qha thiab kev nyab xeeb kev soj ntsuam ntawm siab attenuation austenitic welds yuav tsum tau.
Qhov tseeb portable phased array pab kiag li lawm yog nruab nrog haib built-in software uas tso cai rau koj kom sai thiab zoo teeb, xa thiab txhais 2D matrix array scans yam tsis tas yuav import cov ntaub ntawv tsom xam cov ntaub ntawv tsim nrog lub laij lej sab nraud lossis cov chaw taws teeb tswj siv cov software siab heev.software rau PC.
Niaj hnub no, kev tshuaj xyuas thev naus laus zis raws li 2D array transducers muab lub peev xwm zoo tshaj plaws rau kev kuaj pom lub ntsej muag thiab axial tsis xws luag hauv cov hlau tsis muaj hlau thiab cov hlau tsis sib xws.Tus qauv 2D dual matrix configuration tuaj yeem npog qhov ntim tshuaj xyuas ntawm stainless hlau welds thiab tuaj yeem kuaj xyuas qhov chaw tiaj tus thiab qhov tsis xws luag.
Ultrasound soj ntsuam cov txheej txheem feem ntau koom nrog dual arrays ntawm ob-dimensional matrices muab tso rau ntawm hloov tau wedge-puab Cheebtsam uas nws contours phim lub sab kab uas hla ntawm lub tivthaiv nyob rau hauv kev saib xyuas.Siv cov zaus tsawg - 1.5 MHz rau cov hlau tsis sib xws thiab lwm yam khoom siv txo qis, 2 MHz mus rau 3.5 MHz rau cov khoom sib xws wrought stainless hlau substrates thiab welds.
Qhov kev teeb tsa T / R dual (xa / txais) muaj qhov zoo hauv qab no: tsis muaj qhov ze ntawm qhov chaw "tuag", tshem tawm "phantom echoes" tshwm sim los ntawm kev cuam tshuam sab hauv hauv lub npoo, thiab thaum kawg zoo dua rhiab heev thiab teeb liab-rau-nruab nrab (qhov piv txwv / suab nrov).suab nrov daim duab)) vim yog convolution ntawm T thiab R beams.
Cia peb saib ntawm PA UT txoj kev los tswj kev tsim cov austenitic stainless hlau welds.
Thaum tswj kev tsim khoom, tsis yog RT, kev tswj hwm yuav tsum npog qhov ntim ntawm cov vuam thiab tag nrho cov phab ntsa tuab ntawm thaj chaw uas muaj cua sov.Feem ntau, lub kaus mom solder yuav nyob rau hauv qhov chaw.Nyob rau hauv cov pa roj carbon steel welds, nws raug nquahu kom siv shear nthwv dej rau sonicate lub ntim tswj ntawm ob sab, thaum lub xeem ib nrab nthwv dej feem ntau yog siv kom tau txais specular reflections los ntawm qhov tsis xws luag ntawm weld bevel.
Nyob rau hauv qis zaus, ib txoj kev shear yoj zoo sib xws tuaj yeem siv los ntsuas qhov sib thooj ntawm cov hlau tsis muaj steel welds, tab sis tsis ntseeg tau rau kev sim los ntawm cov khoom siv austenitic weld.Tsis tas li ntawd, rau lub npe hu ua CRA welds, muaj cov txheej txheem corrosion-resistant alloy nyob rau hauv txoj kab uas hla ntawm cov pa roj carbon steel yeeb nkab, thiab ib nrab kawg ntawm cov hlau jumper ntawm tus ntoo khaub lig beam tsis tuaj yeem siv tau zoo.
Cia peb saib cov qauv kev kuaj pom uas siv cov cuab yeej UT portable thiab software, raws li pom hauv daim duab 1.
Dual 2D array transducers uas tsim 30 mus rau 85 degree P-wave refracted beams uas yuav siv tau rau tag nrho cov ntim.Rau phab ntsa thicknesses los ntawm 15 mus rau 50 hli, zaus ntawm 1.5 mus rau 2.25 MHz raug xam tias tsim nyog, nyob ntawm qhov attenuation ntawm lub substrate.
Los ntawm optimizing lub kaum sab xis thiab configuration ntawm lub array sojntsuam ntsiab, ntau yam ntawm refractive lub scans yuav ua tau zoo generated yam tsis muaj kev cuam tshuam sab lobes (Fig. 2).Lub hneev taw ntawm lub npoo ntawm lub dav hlau ntawm qhov xwm txheej raug txo kom tsawg, tso cai rau lub nqaj tawm ntawm qhov taw tes kom nyob ze rau ntawm qhov vuam raws li qhov ua tau.
Kev ua tau zoo ntawm tus qauv 2.25 MHz 10 x 3 dual array array hauv TRL hom tau soj ntsuam ntawm 25 hli phab ntsa thickness 304 stainless hlau phaj weld.Cov qauv kuaj tau muaj qhov zoo li V-shaped txoj kab nqes thiab "raws li-welded" saum npoo av thiab muaj cov ntaub ntawv zoo thiab cov ntaub ntawv zoo sib xws rau cov weld.
Rice.3. Ua ke cov ntaub ntawv phased array rau tus qauv 2.25 MHz 10 x 3 Dual Array (TRL) array ntawm 304 stainless hlau phaj weld.
Ntawm daim duab.3 qhia cov duab ntawm cov ntaub ntawv sib koom ua ke PAR rau txhua lub kaum sab xis ntawm refraction (los ntawm 30 ° txog 85 ° LW) raws tag nrho qhov ntev ntawm qhov vuam.Kev nrhiav tau cov ntaub ntawv tau ua nyob rau theem qis nce kom tsis txhob muaj qhov txaus ntshai ntawm qhov cuam tshuam loj heev.16-ntsis cov ntaub ntawv daws teeb meem tso cai rau qhov tsim nyog muag qhov chaw rau ntau hom kev tsis xws luag.Kev txhais cov ntaub ntawv tuaj yeem ua kom yooj yim los ntawm kev tso qhov projection shutter kom raug.
Ib daim duab ntawm ib qho tsis xws luag tsim siv tib cov ntaub ntawv sib koom ua ke yog pom hauv daim duab 4. Kos qhov tshwm sim:
Yog tias koj tsis xav tshem lub ntsaws ua ntej kev soj ntsuam, lwm txoj hauv kev tshuaj xyuas tuaj yeem siv los txheeb xyuas qhov axial (transverse) tawg hauv cov yeeb nkab welds: ib qho array array sojntsuam tuaj yeem siv rau hauv hom mem tes ncha rau "qig" lub vuam ntsaws suab nrov hauv qab no Raws li lub suab beam propagates feem ntau nyob rau hauv lub substrate, shear side defects.
Qhov zoo tshaj plaws, cov welds yuav tsum tau soj ntsuam nyob rau hauv plaub kab lus qhia (Daim duab 5) thiab yuav tsum tau muab ob lub symmetrical wedges los soj ntsuam los ntawm cov lus qhia, clockwise thiab counterclockwise.Nyob ntawm qhov zaus thiab qhov loj ntawm tus kheej cov ntsiab lus ntawm cov array, cov kab sib dhos tuaj yeem ua kom zoo kom tau txais cov kaum sab xis ntawm 40 ° txog 65 ° txheeb ze rau cov kev taw qhia ntawm lub scan axis.Ntau tshaj 50 rays poob ntawm txhua lub xov tooj tshawb nrhiav.Ib qho cuab yeej cuab tam US PA nrog lub tshuab xam zauv built-in tuaj yeem yooj yim nrog cov ntsiab lus ntawm cov txheej txheem tsom xam nrog cov skew sib txawv, raws li qhia hauv daim duab 6.
Feem ntau, ob kab sib txuas ntawm cov tshev yog siv los them tag nrho cov nyiaj ntawm daim tshev.Lub axial txoj hauj lwm ntawm ob txoj kab scan yog txiav txim siab los ntawm cov yeeb nkab thickness thiab qhov dav ntawm txoj hlua vuam.Thawj kab scan khiav ze li sai tau mus rau ntawm ntug ntawm lub weld, qhia qhov tsis xws luag nyob rau hauv lub hauv paus ntawm weld, thiab thib ob scan kab ua tiav cov kev pab them nqi ntawm HAZ.Lub hauv paus cheeb tsam ntawm qhov kev sojntsuam node yuav tsum optimized kom lub beam tawm point yog ze li sai tau mus rau tus ntiv taw ntawm lub crown tsis muaj qhov tseem ceeb nyob rau hauv reflections nyob rau hauv lub wedge.
Txoj kev tshuaj xyuas no tau pom tias muaj txiaj ntsig zoo hauv kev txheeb xyuas qhov tsis raug axial tsis raug.Ntawm daim duab.7 qhia tau hais tias cov duab phased array coj mus rau hauv lub axial tawg nyob rau hauv ib tug stainless hlau weld: qhov tsis xws luag tau pom ntawm ntau lub kaum sab xis ntawm inclination thiab SNR siab yuav raug soj ntsuam.
Daim duab 7: Cov ntaub ntawv sib txuas ua ntu ntu rau cov kab nrib pleb hauv cov hlau tsis muaj hlau vuam (ntau yam SW lub kaum ntse ntse thiab inclinations): cov lus pom zoo (sab laug) thiab polar projection (txoj cai).
Cov txiaj ntsig ntawm qib siab PA UT ua lwm txoj hauv kev siv hluav taws xob txuas ntxiv tau txais kev mloog zoo hauv cov roj thiab roj, lub zog tsim hluav taws xob, kev tsim khoom thiab lwm yam kev lag luam uas vam khom rau kev tshuaj xyuas ntawm austenitic welds.Ib yam li ntawd, kev sib xyaw ua ke ntawm PA UT cov cuab yeej, muaj zog firmware thiab 2D array probes txuas ntxiv ua rau cov kev tshuaj ntsuam no ntau dua thiab siv tau zoo.
Guy Maes yog Zetec tus thawj coj ntawm kev muag khoom rau UT.Ntau tshaj 25 xyoo ntawm kev paub hauv kev txhim kho thiab kev siv cov txheej txheem ultrasound siab, kev ntsuas kev txawj ntse thiab kev txhim kho software.Yog xav paub ntxiv, hu rau (425) 974-2700 lossis mus saib hauv www.zetec.com.
Cov ntsiab lus txhawb nqa yog ib ntu them nyiaj tshwj xeeb uas cov tuam txhab kev lag luam muab cov ntsiab lus zoo, tsis ncaj ncees, tsis yog lag luam ntawm cov ncauj lus uas txaus siab rau cov neeg tuaj saib zoo.Tag nrho cov ntsiab lus txhawb nqa yog muab los ntawm cov tuam txhab tshaj tawm.Xav koom nrog peb cov ntsiab lus txhawb nqa?Hu rau koj tus neeg sawv cev hauv zos.
Vim hais tias cov teeb meem feem ntau tshwm sim thaum lub sij hawm saib xyuas kev tswj hwm, nws tseem ceeb dua puas tau to taub cov ntsiab cai ntawm kev hloov pauv.Qhov webinar no tham txog cov hauv paus ntsiab lus ntawm kev tswj hwm kev hloov pauv, nws lub luag haujlwm yog lub luag haujlwm tseem ceeb ntawm kev tswj hwm kev ua tau zoo (QMS), thiab nws txoj kev sib raug zoo rau lwm cov txheej txheem kev lees paub zoo xws li kev kho / kev tiv thaiv kev ua haujlwm (CARA) thiab kev cob qhia.
Koom nrog peb kom kawm paub yuav ua li cas 3D metrology cov kev daws teeb meem muab cov neeg tsim qauv ywj pheej thiab cov neeg tsim khoom tswj kev txav mus los kom tau raws li lawv cov kev xav tau ntsuas thaum nce lawv lub peev xwm los ntawm 75%.Hauv kev lag luam niaj hnub no, koj lub lag luam yuav tsum muaj peev xwm siv cov cuab yeej siv thev naus laus zis kom tshem tawm qhov nyuaj ntawm automation, txhim kho kev ua haujlwm, thiab ua kom muaj txiaj ntsig.
Xa Daim Ntawv Thov Kev Pom Zoo (RFP) rau tus neeg muag khoom ntawm koj qhov kev xaiv thiab nyem lub pob qhia txog koj cov kev xav tau.