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Koj nyob ntawm no: Tsev » Xov xwm » Consulting Center » Yuav Ua Li Cas Tshawb Xyuas Vuam Zoo? Ntawm no yog plaub txoj kev sim ua kom ntseeg tau tias vuam ua tau raws li cov qauv.

Yuav Tshawb Xyuas Vuam Zoo Li Cas? Ntawm no yog plaub txoj kev sim ua kom ntseeg tau tias vuam ua tau raws li cov qauv.

Views: 0 Author: Site Editor Publish Time: 2026-01-30 Keeb Kwm: Qhov chaw

Nug

Vuam zoo ncaj qha tswj kev sib koom ua ke, kev nyab xeeb thiab kev pabcuam lub neej. Cov welds tsis zoo tuaj yeem ua rau tawg, tawg, tawg lossis txawm tias muaj xwm txheej. Ntau lub tuam txhab xa khoom faulty tsuas yog vim lawv tsis muaj cov txheej txheem tshuaj xyuas, uas ua rau cov nqi rov ua haujlwm dua thiab ua rau lub npe nrov npe. Qhov tseeb koj tsis xav tau cov iav nyuaj los tswj cov khoom siv vuam zoo-tsim plaub qhov kev xeem (kev pom, kev nkag siab, ultrasonic, kev puas tsuaj) thiab koj npog tag nrho cov spectrum los ntawm kev soj ntsuam ceev kom muaj tseeb. Kab lus no piav qhia txog kev ua haujlwm tseem ceeb-cov ntsiab lus thiab daim ntawv thov ntawm txhua txoj kev; Thawj thawj zaug cov kws tshuaj xyuas thiab cov kws paub txog QA tuaj yeem luam tawm cov haujlwm ncaj qha.

Lub hauv paus ntsiab lus tseem ceeb: ua raws li 'dub-rau-dav, nto-rau-core' logic-nrhiav pom qhov chaw qhov chaw tsis zoo ua ntej nrog txoj kev yooj yim, tom qab ntawd mus yos hav zoov rau qhov tsis xws luag sab hauv nrog cov kev tshaj lij, thiab thaum kawg ua qhov kev ntsuam xyuas kev puas tsuaj los ua pov thawj tag nrho. Qhov no txuag nqi tshuaj xyuas thiab boosts efficiency.

I. Kev soj ntsuam pom - nrawm tshaj plaws, pheej yig tshaj, txhua tus tuaj yeem ua tau

Kev soj ntsuam pom yog thawj kab ntawm kev tiv thaiv; tsis muaj cov cuab yeej tshwj xeeb lossis kev txawj ntse. Hauv kev tsim khoom loj nws ntes ≥80% ntawm qhov pom tseeb ntawm qhov tsis xws luag hauv vib nas this.

1. Yuav nrhiav dab tsi

Weld loj: dav, qhov siab, ntev nyob rau hauv daim duab kam rau ua (± 1 hli yog ntau).
Deg flaws: tawg (feem ntau txaus ntshai), porosity, under-cut, incomplete penetration, overlaps, slag inclusions.
Qhov xwm txheej: distortion, warpage, mis-alignment uas tuaj yeem cuam tshuam rau kev sib dhos hauv qab.

2. Cov cuab yeej & cov kauj ruam
Cov cuab yeej: steel kav, weld gauge (optional), teeb nyem.

Cov kauj ruam: (i) Ntxuav spatter, xeb, roj; (ii) Tshawb xyuas tag nrho cov sib koom ua ke nyob rau hauv lub teeb muaj zog, tshwj xeeb tshaj yog pib / nres thiab ntiv taw; (iii) Ntsuas ceg ntev, caj pas, tag nrho ntev; (iv) Tsis lees txais lossis kos rau kev kho yog tias pom muaj kab nrib pleb, qhov hws loj lossis qis dua.

3. Kev poob siab

Lub teeb pom kev tsis zoo zais cov kab plaub hau - ib txwm siv lub teeb nyem.
Tshem tawm slag maj mam; tsis txhob khawb qhov chaw thiab tsim 'false' defects.
Tsis txhob hnov qab txog cov kab plaub hau - nws tuaj yeem nthuav tawm ntawm phab ntsa.

II. Kev ntsuam xyuas Penetrant (PT) - pom me me nto / ze-nto qhib

PT yog tus nqi qis, tsis muaj kev puas tsuaj rau kev kuaj xyuas cov kab nrib pleb lossis qhov pores ≤2 hli tob uas qhov muag tsis pom. Nws suits yuav luag tag nrho cov hlau thiab complex duab.

Txoj Cai
Capillary nkaus rub cov xim dye rau hauv qhov chaw qhib; cov xim ntau dhau yog wiped tawm; tus tsim tawm dawb kos cov xim rov qab tawm, nthuav tawm qhov tsis zoo.
Cov cuab yeej & txheej txheem
Aerosol cov kaus poom: ntxuav, penetrant, tsim tawm; daim ntaub tsis abrasive; xaiv plaub hau- tshuab ziab khaub ncaws.
Cov kauj ruam: (i) Sib tsoo / degrease ib 20 mm band raws cov weld; (ii) Txau rau hauv av, kom ntub dej 10-20 feeb; (iii) So tawm ntau dhau, ntxuav perpendicularly rau qhov sib koom ua ke; (iv) Txau ib txheej txheej txheej txheej txheej; (v) Tom qab 5-10 feeb tshuaj xyuas nyob rau hauv nruab hnub nrig-xim kab = kab nrib pleb, dots = porosity.
Scope & txwv
Zoo rau: deg-breaking defects ntawm ntxhib los yog complex duab (pipe fittings, cam khwb cia vaj tse).
Kev txwv: tsis tuaj yeem pom qhov tsis zoo sab hauv; nto roughness yuav muab hu tsis raug; tsis haum rau cov khoom ntxeem tau (cam khwb cia hlau).

III. Ultrasonic kuaj (UT) - lub pob txha caj qaum rau sab hauv tsis xws luag

UT yog cov txheej txheem tseem ceeb uas tsis muaj kev puas tsuaj rau sab hauv kev tsis sib xws hauv cov tuab (≥8 hli) welds: tsis muaj fusion, faus cov kab nrib pleb, slag, porosity. Nws yog indispensable rau load-critical los yog siab-critical pob qij txha.

Txoj Cai
Ib qho kev sojntsuam piezo-hluav taws xob xa cov suab nrov mus rau hauv qhov vuam. Suab cuam tshuam ntawm interfaces; lub sij hawm-ntawm-flight thiab echo qhov siab qhia tus neeg teb xov tooj qhov chaw thiab qhov loj ntawm lub reflector.
Khoom siv & cov kauj ruam
Flaw detector, ntxaib-lub kaum ntse ntse los yog ncaj sojntsuam, coupling paste (roj los yog glycerine), calibration block.
Cov kauj ruam: (i) Sib tsoo weld cap flush, tshem tawm xeb / xim; (ii) Calibrate ntawm ib qho kev siv thaiv; (iii) Siv couplant, scan sojntsuam thaum uas tig mus thiab perpendicular rau weld axis; (iv) Kos qhov taw qhia saum qib kev ntsuam xyuas; (v) Plot position and length, classify per code (ISO 17640, AWS D1.1, GB/T 11345).
Qhov zoo

Tsis muaj kev puas tsuaj tag nrho; tuaj yeem rov ntsuas qhov qub qub.
Kev nkag mus tob (ntau meters ntawm qhov loj forgings).
Kev soj ntsuam ceev ceev - tsim nyog rau kev soj ntsuam ntau.
Muab qhov tob thiab ntev rau kev npaj kho.

IV. Kev ntsuam xyuas kev puas tsuaj - pov thawj ntawm lub zog thiab ductility

Cov qauv me me raug tshem tawm thiab tawg los xyuas kom meej tias WPS tau muab cov khoom siv kho kom zoo. Nws yog tib txoj kev uas pom 'qhov kawg kev muaj tiag'.

Feem ntau cov kev xeem
(a) Tensile test – ntsuas qhov kawg tensile zog (UTS). Kev lees txais: weld UTS ≥90% ntawm lub hauv paus-hlau UTS thiab tawg sab nraum lub vuam lossis ua tau raws li tus nqi qis kawg nkaus.
(b) Sab-khoov lossis hauv paus-khoov - txheeb xyuas qhov ductility thiab kev ywj pheej ntawm kev tsis muaj fusion. Tsis muaj ib qho tawg> 3 hli ntawm lub ntsej muag nro tom qab 180 ° khoov dua ib qho mandel Ø = 4 t.
Sampling
Feem ntau 3-5 pieces ib batch los yog ib 50 m ntawm weld. Rau cov ntawv xeem WPS tshiab, ob lub tensiles thiab plaub khoov yog ib yam.
Sau ntawv

Cov qauv yuav tsum yog tus neeg sawv cev (cov khoom siv tib yam, tuab, WPS).
Cov tshuab yuav tsum tau calibrated; ntug tawg los ntawm ntxhib txiav yuav tsum tau muab tshem tawm.
Ua ke nrog NDT: NDT nrhiav qhov chaw, DT ua pov thawj cov khoom.

V. Kev ua haujlwm hauv khw hauv pem teb (copy & paste)

Kauj Ruam 1 - 100% pom los ntawm welder / tus neeg ua haujlwm; kho tam sim ntawd los yog seem.
Kauj ruam 2 - PT ntawm qhov tseem ceeb fillets los yog UT ntawm tuab pob tw welds (spot-check los yog 100% raws li yuav tsum tau los ntawm code).
Kauj Ruam 3 - Kev puas tsuaj rau txhua qhov ntau; nthuav cov qauv yog tias ua tsis tiav.
Kauj Ruam 4 - Qhov kawg tso tawm tsuas yog tom qab tag nrho peb cov kauj ruam dhau ntxiv cov ntaub ntawv.

Kho qhov zaus thiab txoj hauv kev rau koj txoj kev lag luam: cov khoom siv kho mob thiab cov khoom siv pib yuav xav tau 100% UT + ntau yam kev puas tsuaj; Cov khoom siv dav dav tuaj yeem tso siab rau qhov pom + lub sijhawm PT / khoov.

VI. Quick pitfall list

Tsis txhob hla kev pom - cov kab nrib pleb feem ntau yog 'root' tom qab UT tsis lees paub.
PT ua tsis tau thaum qhov chaw qias neeg; qhov chaw npaj yog 80% ntawm qhov tshwm sim.
UT xav tau kev ntsuas txhua hnub thiab tus neeg ua haujlwm tau txais kev cob qhia; tsis ncaj ncees lawm kev sojntsuam lub kaum sab xis = tsis muaj-of-fusion.
Cov qauv kev puas tsuaj yuav tsum yog tib yam WPS; txwv tsis pub qhov kev xeem no tsis muaj qab hau.

Master cov plaub txoj kev no thiab koj yuav ntes qhov tsis xws luag thaum ntxov, txiav cov nqi rov ua haujlwm thiab lav tias txhua yam khoom siv welded tawm hauv koj cov nroj tsuag muaj kev nyab xeeb thiab ua raws cai.

Yog tias koj xav tau lub tshuab vuam, thov hu rau Ms. Zhao

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