Irayisi.1. Indlela yokuHlola yoMveliso weNtsimbi ye-Stainless Weld: INdibano ephindwe kabini ye-2D yeMatrix kwiModi ye-TRL.

Iikhowudi, imigangatho, kunye neendlela ziye zavela ukuvumela ukusetyenziswa kovavanyo lwe-ultrasonic array (PAUT) endaweni ye-RT yokuvavanya i-austenitic welds.Eyokuqala esetyenziswa ngokubanzi kwizityalo zamandla enyukliya phantse kwiminyaka eli-15 eyadlulayo, ukusetyenziswa kwe-dual (2D) array sensor assemblies iye yasasazeka kwi-oyile kunye negesi kunye namanye amashishini apho uhlolo olukhawulezayo, oluthembekileyo nolukhuselekileyo lwe-attenuation ephezulu ye-austenitic welds kufuneka.
Izixhobo zamva nje eziphathwayo zoluhlu olunezigaba zinezixhobo ezinamandla ezakhelwe ngaphakathi ezikuvumela ukuba umise ngokukhawuleza nangokufanelekileyo, usasaze kwaye utolike izikena ze-2D ze-matrix ngaphandle kokungenisa iifayile ezigxininisiweyo zomthetho ezenziwe ngeekhaltyhuleyitha zangaphandle okanye iinkqubo zolawulo olude usebenzisa isoftware ephezulu.isoftware yePC.
Namhlanje, itekhnoloji yokuhlola esekwe kwi-2D array transducers ibonelela ngobuchule obuphezulu bokubona i-girth kunye neziphene ze-axial kwintsimbi engenasici kunye ne-welds zetsimbi ezahlukeneyo.Ubume be-2D obuqhelekileyo be-matrix buyakwazi ukugubungela ngokufanelekileyo umthamo wokuhlola we-welds yensimbi engenasici kwaye inokubona iziphene ezisicaba kunye nezininzi.
Iinkqubo zokuhlolwa kwe-Ultrasound ngokuqhelekileyo zibandakanya ii-arrays ezimbini zeematriki ezi-dimensional-dimensional ezibekwe kumalungu aguqulwayo abunjwe njenge-wedge ene-contours ehambelana nobubanzi obungaphandle becandelo eliqwalaselwayo.Sebenzisa i-frequencies ephantsi - 1.5 MHz kwii-welds zetsimbi ezahlukeneyo kunye nezinye izinto zokunciphisa ukuthotywa, i-2 MHz ukuya kwi-3.5 MHz kwii-substrates zensimbi ezingenasici kunye neentsimbi.
Ukucwangciswa kwe-T / R ezimbini (ukuhambisa / ukufumana) kunika ezi zibonelelo zilandelayo: akukho kufutshane "ummandla ofileyo", ukupheliswa "kwe-phantom echoes" okubangelwa ukubonakaliswa kwangaphakathi kwi-wedge, kwaye ekugqibeleni uvakalelo olungcono kunye ne-signal-to-noise ratio (isignali yokulinganisa / ingxolo).umzobo wengxolo) ) ngenxa yokuguqulwa kwemiqadi engu-T no-R.
Makhe sijonge indlela ye-PA UT yokulawula ukwenziwa kwee-welds zentsimbi ye-austenitic.
Xa uqhuba ulawulo lwemveliso, endaweni ye-RT, ulawulo kufuneka lugubungele umthamo we-weld kunye nobukhulu bodonga lonke lommandla ochaphazelekayo ukushisa.Kwiimeko ezininzi, i-solder cap iya kuba kwindawo.Kwi-carbon steel welds, kuyacetyiswa ukuba kusetyenziswe amaza e-shear ukuze i-sonicate umthamo olawulwayo kumacala omabini, ngelixa i-wave yesiqingatha sokugqibela isetyenziselwa ukufumana izibonakaliso ezikhethekileyo ezivela kwiziphene kwi-weld bevel.
Kwiifrikhwensi ezisezantsi, indlela efanayo ye-shear wave ingasetyenziselwa ukuvavanya i-bevel esondeleyo yeentsimbi zentsimbi, kodwa ayithembekanga kuvavanyo nge-austenitic weld material.Ukongezelela, kwizinto ezibizwa ngokuba yi-CRA welds, kukho i-alloy-resistant alloy coating kwi-diameter yangaphakathi yombhobho we-carbon steel, kwaye isiqingatha sokugqibela se-wire jumper ye-cross boam ayikwazi ukusetyenziswa ngokufanelekileyo.
Makhe sijonge iindlela zokubona iisampulu kusetyenziswa isixhobo esiphathwayo se-UT kunye nesoftware, njengoko kubonisiwe kuMfanekiso 1.
Iitransducer eziDual ze-2D ezivelisa ama-30 ukuya kuma-85 amaza aphindiweyo amaza e-P anokusetyenziselwa ukugubungela umthamo opheleleyo.Kwiindonga zodonga ukusuka kwi-15 ukuya kwi-50 mm, i-frequencies ukusuka kwi-1.5 ukuya kwi-2.25 MHz ithathwa njengefanelekileyo, kuxhomekeke ekunciphiseni i-substrate.
Ngokulungisa i-angle ye-wedge kunye nokucwangciswa kwezinto zeprobe ye-array, uluhlu olubanzi lwe-angle ye-refractive scans lunokwenziwa ngokufanelekileyo ngaphandle kwee-lobes zecala elihambelanayo (umzobo 2).Umzobo we-wedge node kwi-plane ye-encidence iyancitshiswa, ivumela indawo yokuphuma ye-beam ukuba ibekwe kufuphi ne-weld kangangoko kunokwenzeka.
Ukusebenza komgangatho oqhelekileyo we-2.25 MHz 10 x 3 uluhlu oluphindwe kabini loluhlu kwimo ye-TRL luvavanyiwe kudonga oluyi-25 mm ubukhulu be-304 yentsimbi yentsimbi yentsimbi weld.Iisampulu zovavanyo zinethambeka elibume okwe-V eliqhelekileyo kunye nemeko yomphezulu "njengoko-welded" kwaye iqulethe iziphene zokwenyani nezibhalwe kakuhle ezinxusene ne-weld.
Irayisi.3. Idatha yoluhlu oludibeneyo oludibeneyo oluqhelekileyo lwe-2.25 MHz 10 x 3 Dual Array (TRL) luluhlu kwi-304 ye-stainless steel plate weld.
Kwikhiwane.I-3 ibonisa imifanekiso yedatha ye-PAR edibeneyo kuzo zonke ii-angles ze-refraction (ukusuka kwi-30 ° ukuya kwi-85 ° LW) kunye nobude bonke be-weld.Ukufunyanwa kwedatha kwenziwa kwinqanaba lokuzuza eliphantsi ukuphepha ukugcwala kweziphene ezibonisa kakhulu.Isisombululo sedata se-16-bit sivumela useto olufanelekileyo lwenzuzo ethambileyo kwiindidi ezahlukeneyo zeziphene.Ukutolikwa kwedatha kunokuququzelelwa ngokubeka ngokufanelekileyo isivalo sokubonisa.
Umfanekiso wesiphene esinye esenziwe kusetyenziswa iseti yedatha edityanisiweyo iboniswe kuMfanekiso 4. Jonga isiphumo:
Ukuba awufuni ukususa iplagi phambi kokuhlolwa, enye indlela yokuhlola ingasetyenziselwa ukukhangela iintanda ze-axial (transverse) kwi-welds yombhobho: i-single array array probe ingasetyenziselwa kwimo ye-pulse echo "ukuthambekela" iplagi ye-weld Umqa wesandi ovela ngaphantsi
Ngokufanelekileyo, i-welds kufuneka ihlolwe kwiindlela ezine ze-beam (Umfanekiso wesi-5) kwaye ifuna i-wedges ezimbini ze-symmetrical ukuba zihlolwe ukusuka kumacala ahlukeneyo, ngewotshi kunye ne-counterclockwise.Ngokuxhomekeke kubuninzi kunye nobukhulu bezinto ezizimeleyo ze-array, i-wedge assembly inokuphuculwa ukufumana i-angles ye-refraction ukusuka kwi-40 ° ukuya kwi-65 ° ngokumalunga necala le-axis yokuskena.Ngaphezulu kwemitha ye-50 iwela kwiseli nganye yokukhangela.Isixhobo esiphucukileyo sase-US PA esinekhaltyhuleyitha eyakhelwe-ngaphakathi singakwazi ukujongana ngokulula nenkcazo yeeseti zemithetho egxininisiweyo enezikhonkwane ezahlukeneyo, njengoko kubonisiwe kuMfanekiso 6.
Ngokuqhelekileyo, ulandelelwano lwemigca emibini yeetshekhi lusetyenziselwa ukugubungela ngokupheleleyo isixa setshekhi.Izikhundla ze-axial zemigca emibini yokuskena inqunywe ukusuka kubukhulu bombhobho kunye nobubanzi be-tip weld.Umgca wokuqala wokuskena uqhuba ngokusondeleyo kangangoko kunokwenzeka kumda we-weld, uveza iziphene ezibekwe kwingcambu ye-weld, kwaye umgca wesibini wokuskena ugqiba ukugubungela i-HAZ.Indawo esisiseko se-probe node iya kwenziwa ngcono ukuze indawo yokuphuma yomqadi isondele kangangoko kunokwenzeka kwinzwane yesithsaba ngaphandle kokubonakaliswa okubalulekileyo kwangaphakathi kwi-wedge.
Le ndlela yokuhlola ifunyenwe isebenze kakhulu ekufumaneni iziphene ze-axial ezingalunganga.Kwikhiwane.I-7 ibonisa umfanekiso owenziwe ngezigaba othathwe kwi-axial crack kwi-weld yensimbi engenasici: iziphene zifunyenwe kwii-angles ezahlukeneyo zokuthambekela kwaye i-SNR ephezulu inokubonwa.
Umzobo 7: Idatha edibeneyo yoluhlu oluhlanganisiweyo lwe-axial cracks kwi-welding yensimbi engenasici (ii-angles ezahlukeneyo ze-SW kunye nokuthambekela): iprojekti eqhelekileyo (ekhohlo) kunye ne-polar projection (ekunene).
Izibonelelo ze-PA UT ephuculweyo njengenye indlela ye-radiography iyaqhubeka ifumana ingqalelo kwi-oyile kunye negesi, ukuveliswa kwamandla, ukuvelisa kunye namanye amashishini axhomekeke ekuhlolweni okuthembekileyo kwe-austenitic welds.Ngokunjalo, izixhobo ze-PA UT ezidityanisiweyo ngokupheleleyo, i-firmware enamandla kunye ne-2D array probes iyaqhubeka nokwenza olu hlolo lungabizi kakhulu kwaye lusebenze.
UGuy Maes ngumlawuli weZetec kwintengiso eUT.Ngaphezulu kweminyaka engama-25 yamava ekuphuhliseni nasekuphunyezweni kweendlela eziphambili ze-ultrasound, uvavanyo lobuchule kunye nophuhliso lwesoftware.Ukuze ufumane inkcazelo engakumbi, fowunela (425) 974-2700 okanye undwendwele www.zetec.com.
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