Kuwunika koyesa kosawononga pambuyo pa weld

Njira zoyesera zosawononga zimagwiritsidwa ntchito kwambiri

1.UT (Ultrasonic Test)

—— Mfundo Yaikulu: Mafunde amawu amafalikira muzinthuzo, pakakhala zodetsa za kachulukidwe kosiyanasiyana, mafunde amawu amawonekera, ndipo mphamvu ya piezoelectric ya chinthu chowonetsera idzapangidwa pachiwonetsero: chinthu chomwe chili mu kafukufukuyo chimatha kusintha. mphamvu yamagetsi mu mphamvu zamakina, ndi zotsatira zake, mphamvu yamakina imasandulika kukhala mphamvu yamagetsi Akupanga kotalika kotalika mafunde ndi kukameta ubweya / kukameta ubweya, kafukufukuyo amagawidwa kukhala kafukufuku wowongoka ndi oblique probe, kafukufuku wowongoka makamaka amazindikira zakuthupi, oblique probe makamaka. amazindikira welds

-- Zida zoyesera za Ultrasonic ndi njira zogwirira ntchito

Zida: Chowunikira cha akupanga, probe, chipika choyesera

Kachitidwe:

Brush yokutidwa couplant.Dziwani.Unikani zizindikiro zowonekera

- Mawonekedwe a Ultrasonic kuzindikira

Malo atatu-dimensional ndi olondola, kulola kokha kuchokera kumbali ya chigawocho kuti agwire ntchito, kudziwika makulidwe akuluakulu - mpaka mamita 2 kapena kuposerapo, amatha kuzindikira chinsinsi chosasinthika - mtundu wathyathyathya wosasunthika, zida zosavuta kunyamula, zomwe zimafuna kuti munthu azindikire zolakwika. Ndipamwamba, makulidwe nthawi zambiri amafunikira osachepera 8mm, pamtunda wosalala

——Mchere wa phala womwe umagwiritsidwa ntchito pozindikira zolakwika ndi wochuluka kwambiri, ndipo uyenera kutsukidwa ukangozindikira zolakwika.

Phala lomwe limagwiritsidwa ntchito pozindikira zolakwika za akupanga m'makampani olemera kwambiri ali ndi mchere wambiri, ndipo ngati silikutsukidwa munthawi yake, lidzakhudza kwambiri khalidwe la anti-corrosion №.

Kwa zokutira zamtundu wa anti-corrosion, ntchito yake yayikulu ndikulekanitsa mpweya kapena madzi (electrolyte) kuchokera pamalo otetezedwa, koma kudzipatula sikuli kotheratu, pakapita nthawi, chifukwa cha kuthamanga kwa mlengalenga, mpweya kapena madzi (electrolyte) akadali akadali. lowetsani malo otetezedwa, ndiye malo otetezedwa adzatulutsa mankhwala ndi chinyezi kapena madzi (electrolyte) mumlengalenga, pamene akuwononga malo otetezedwa.Mchere ukhoza kugwiritsidwa ntchito ngati chothandizira kuti dzimbiri liyambe kufulumira, ndipo mcherewo ukakhala wochuluka, umakhala wofulumira kwambiri.

M'makampani olemera, pali opareshoni - kuzindikira zolakwika za akupanga, kugwiritsa ntchito phala (couplant) mchere ndi wokwera kwambiri, mcherewo udafika kupitilira 10,000 μs / cm (makampani nthawi zambiri amafuna kuti mchere wa abrasive ukhale wocheperako. kuposa 250 μs / masentimita, mchere wathu wam'madzi wam'nyumba nthawi zambiri umakhala pafupifupi 120 μs / cm), pakadali pano, kupanga utoto, zokutira zidzataya mphamvu yake yotsutsa dzimbiri pakanthawi kochepa.

Chizoloŵezi chachizolowezi ndikutsuka phala lodziwika bwino ndi madzi oyera mukangozindikira cholakwikacho.Komabe, mabizinesi ena samayika kufunikira kwa anti-corrosion, ndipo samayeretsa phala pambuyo pozindikira zolakwika, zomwe zimapangitsa kuti pakhale zovuta kuchotsa phala lodziwika bwino pambuyo poyanika, zomwe zimakhudza mwachindunji mtundu wa anti-corrosion wa zokutira.

Nayi mndandanda wazoyeserera:

1. Zambiri zamchere zamadzimadzi ozindikira zolakwika

-- Mfundo: kufalitsa ndi kuyamwa kwa cheza - kufalikira muzinthu kapena ma welds, kuyamwa kwa cheza ndi mafilimu

Mayamwidwe a ray: zinthu zokhuthala ndi wandiweyani zimatenga kuwala kochulukirapo, zomwe zimapangitsa kuti filimuyo isakhudzidwe kwambiri ndi chithunzi choyera.M'malo mwake, chithunzicho ndi chakuda

Zosagwirizana ndi chithunzi chakuda zikuphatikiza: kuphatikizika kwa slag \ hole ya mpweya \ undercut \ crack \ kuphatikizika kosakwanira \ kulowa kosakwanira

Zosiyanitsidwa ndi chithunzi choyera: Kuphatikizika kwa Tungsten \ spatter \ overlap \ high weld reinforcement

——Masitepe oyeserera a RT

Malo a ray source

Ikani mapepala kumbali yakumbuyo ya weld

Kuwonetsedwa molingana ndi njira zodziwira zolakwika

Kukula kwa kanema: Kukulitsa - kukonza - Kuyeretsa - kuyanika

Kuwunika kwamafilimu

Tsegulani lipoti

—- Gwero la ray, chizindikiro cha mtundu wa chithunzi, mdima

Gwero la mzere

X-ray: makulidwe a transillumination nthawi zambiri amakhala osakwana 50mm

Mkulu mphamvu X-ray, accelerator: makulidwe transillumination ndi oposa 200mm

γ Ray: ir192, Co60, Cs137, ce75, etc., ndi makulidwe a transillumination kuyambira 8 mpaka 120mm

Linear chithunzi khalidwe chizindikiro

Chizindikiro cha mtundu wa bowo chiyenera kugwiritsidwa ntchito pa FCM ya mlatho

Blackness d=lgd0/d1, index ina yowunikira kukhudzidwa kwa kanema

Zofunikira za X-ray: 1.8 ~ 4.0;γ Zofunikira za Radiographic: 2.0 ~ 4.0,

——zida za RT

Gwero la Ray: makina a X-ray kapena makina a γ X-ray

Alamu ya ray

Kutsegula chikwama

Chizindikiro cha khalidwe lazithunzi: mtundu wa mzere kapena mtundu wa pass

Mdima wakuda

Makina opanga mafilimu

(vuvuni)

Nyali yowonera mafilimu

(chipinda chowonetsera)

--mawonekedwe a RT

Zogwiritsidwa ntchito pazinthu zonse

Zolemba (zoyipa) ndizosavuta kusunga

Kuwonongeka kwa ma radiation kwa thupi la munthu

Kuwongolera kwa discontinuities:

1. chidwi kwa discontinuities kufanana ndi mtengo malangizo

2. osakhudzidwa ndi discontinuities kufanana ndi zinthu pamwamba

Mtundu wa discontinuity:

Zimakhudzidwa ndi ma discontinuities amitundu itatu (monga pores), ndipo ndizosavuta kuphonya kuyang'ana kwa discontinuities ndege (monga kusakanikirana kosakwanira ndi ming'alu) Deta ikuwonetsa kuti kuchuluka kwa RT kwa ming'alu ndi 60%

RT ya zigawo zambiri zidzafikiridwa mbali zonse ziwiri

Zolakwika zidzawunikidwa ndi anthu odziwa ntchito

3.mt (maginito tinthu anayendera)

-- Mfundo: chogwirira ntchito chikapangidwa ndi maginito, gawo lotayirira la maginito limapangidwa pakutha, ndipo tinthu tating'ono timapangidwa kuti tipangitse chiwonetsero chazithunzi.

Maginito: gawo lokhazikika la maginito ndi gawo lamagetsi lopangidwa ndi maginito okhazikika

Tinthu ta maginito: tinthu tating'ono touma ndi tinthu tating'ono tonyowa

Tinthu ta maginito tokhala ndi mtundu: tinthu tating'ono ta maginito, tinthu tating'onoting'ono tofiira, tinthu tating'onoting'ono toyera

Fluorescent maginito ufa: wowunikiridwa ndi nyali ya ultraviolet m'chipinda chamdima, ndi wobiriwira wachikasu ndipo amakhala ndi chidwi kwambiri.

Kuwongolera: discontinuities perpendicular to direction of the magnetic line of force ndizovuta kwambiri

——Njira zodziwika bwino zamaginito

Longitudinal magnetization: njira ya goli, njira ya coil

Circumferential magnetization: njira yolumikizirana, njira yapakati ya conductor

Magnetizing current:

AC: kukhudzika kwakukulu kwa discontinuities pamwamba

DC: kukhudzika kwakukulu kwa pafupi ndi discontinuities pamwamba

——Njira yoyesera maginito

Kuyeretsa workpiece

Maginito workpiece

Ikani maginito tinthu pamene magnetizing

Kutanthauzira ndi kuwunika kwa maginito trace

Kuyeretsa workpiece

(demagnetization)

——Zinthu za MT

Mkulu tilinazo

ogwira ntchito

Njira ya goli ndi zida zina ndizosavuta kusuntha

Ma discontinuities pafupi ndi pamwamba amatha kuzindikirika poyerekeza ndi kulowa

Mtengo wotsika

Zimangogwira pazida za ferromagnetic, zomwe sizikugwira ntchito pazitsulo zosapanga dzimbiri za austenitic, aloyi ya aluminiyamu, aloyi ya titaniyamu, mkuwa ndi aloyi yamkuwa.

Zimakhudzidwa ndi zokutira pamtunda wa workpiece.Nthawi zambiri, makulidwe a ❖ kuyanika sayenera kupitirira 50um

Nthawi zina zigawo zimafunikira demagnetization

4.pt (kuwunika kolowera)

—— Mfundo Yaikulu: gwiritsani ntchito capillarity kuti muyamwitse cholowera chotsalira, kotero kuti cholowera (nthawi zambiri chofiira) ndi madzi ojambulira (nthawi zambiri oyera) amasakanizidwa kuti apange chiwonetsero.

——Mtundu woyendera wolowera

Malingana ndi mtundu wa chithunzi chomwe chinapangidwa:

Mtundu, kuwala kowoneka

Fluorescence, UV

Malinga ndi njira yochotsera olowera owonjezera:

Kuchotsa zosungunulira

Njira yotsuka madzi

Post emulsification

Njira yomwe imagwiritsidwa ntchito kwambiri pamapangidwe achitsulo ndi: njira yochotsera zosungunulira zamitundu

——Masitepe oyesera

Kuyeretsa workpiece: gwiritsani ntchito woyeretsa

Ikani zolowera ndikuzisunga kwa 2 ~ 20min.Sinthani molingana ndi kutentha kozungulira.Ngati nthawiyo ili yochepa kwambiri, wolowerayo ndi wosakwanira, motalika kwambiri kapena kutentha kwambiri, wolowera adzauma Wolowera ayenera kunyowa panthawi yonse ya mayesero.

Chotsani cholowera chowonjezera ndi choyeretsa.Ndizoletsedwa kupopera mankhwala oyeretsera mwachindunji pa workpiece.Pukutani ndi nsalu yoyera kapena pepala loviikidwa ndi cholowera kuchokera mbali ina kuti musachotse cholowera cholowera poyeretsa.

Ikani yunifolomu ndi woonda wosanjikiza wa kutukula njira ndi kupopera mbewu mankhwalawa imeneyi pafupifupi 300mm.Kuthirira kwambiri koyambitsa njira kungayambitse kulekeza

Fotokozani ndi kuyesa zosiya

Kuyeretsa workpiece

——Zinthu za PT

Ntchitoyi ndi yosavuta

Kwa zitsulo zonse

Mkulu tilinazo

Zosavuta kusuntha

Kuzindikira kotseguka kwapamtunda kokha

Ochepa ntchito bwino

High pamwamba akupera zofunika

kuwononga chilengedwe

Kusinthika kwa zowunikira zosiyanasiyana kuti zisokoneze malo