Xim qhov tsis pom kev ntawm welds: nta thiab piav qhia

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Qhov zoo ntawm vuam yog txiav txim siab los ntawm qhov muaj zog npaum li cas. Nyob rau tib lub sijhawm, kev tswj xyuas kev sib txuas yuav tsum tsis muaj kev puas tsuaj, uas yuam cov tswv kom tig mus rau cov txheej txheem pov thawj tshwj xeeb tom qab kev ua haujlwm tiav. Qee qhov xwm txheej, kev tshuaj xyuas sab nraud yam tsis muaj cuab yeej siv kuj raug tso cai, tab sis nyob rau hauv cov ntaub ntawv ntawm cov qauv tseem ceeb, kev tshuaj xyuas qhov muag tsis tuaj yeem txwv. Nws tuaj yeem ntxiv los ntawm cov xim tsis pom kev ntawm cov welds - yog ib txoj hauv kev zoo tshaj plaws, yooj yim thiab txhim khu kev qha rau kev txheeb xyuas cov pob qij txha.

Txoj kev qhia tseeb

Txoj kev kuaj xyuas welds no yog hais txog capillary, tab sis tsuas yog tsom rau kev daws teeb meem sab nraud xwb. Ntawd yog, nws tsis tuaj yeem siv los txheeb xyuas cov qauv sab hauv ntawm thaj chaw sib koom ua ke, piv txwv li, txhawm rau kuaj pom qhov tsis zoo ntawm ultrasonic. Feem ntau, cov hlau ua rau tawg yog raug rau qhov kev sim no. Tsis tas li ntawd, kev tswj xim tso cai rau koj los txheeb xyuas qhov tsis sib xws uas tuaj rau saum npoo.

Raws li lub hauv paus ntsiab lus ntawm kev txheeb xyuas, nws yog nyob ntawm qhov rhiab heev ntawm cov hlau rau kev cuam tshuam nrog cov khoom tsis yog-defectoscopic non-ferrous. Contrary to popular kev ntseeg, tsom xam litswj cov ntaub ntawv tsis siv cov yam ntxwv ntawm qhov chaw ntawm lub workpiece, tab sis kev hloov pauv provoked los ntawm irritating cov qauv nrog tshuaj. Cov txheej txheem ntawm kev kuaj xyuas qhov tsis haum xim yog ua raws li cov txheej txheem ntawm kev raug tshuaj lom neeg, uas tso cai rau koj los ua cov ntaub ntawv hais txog kev hloov pauv thiab muab cov ntaub ntawv ntawm cov hlau tsis zoo ntawm cov zis.

Txoj kev nws tus kheej tsis tshua siv ib leeg. Feem ntau nws yog siv nyob rau hauv cov kev tshawb xyuas dav dav - ua ke nrog ultrasonic. Kev tshuaj ntsuam xim ua ntej, ua raws li kev kuaj ultrasonic.

khoom siv

Raws li twb tau hais lawm, kev kuaj pom qhov tsis zoo tsis ua tiav yam tsis muaj kev siv tshuaj tshwj xeeb. Cov khoom siv rau kev kuaj pom xim tsis zoo muaj peb hom khoom: qhov taw qhia penetrant, tu tus neeg saib xyuas thiab tus tsim tawm. Ntawd yog, kev tswj cov xim rhiab heev yuav qhib los ntawm kev ua haujlwm peb-theem ntawm thaj chaw ua haujlwm. Cov ntaub ntawv tshwj xeeb yog siv rau txhua theem.

Penetrants yog, qhov tseeb, cov xim uas tuaj yeem nthuav tawm hauv ntau hom. Cov khoom siv hmoov kuj tseem siv tau, tab sis kev ua haujlwm ntxiv ntawm kev ua kom sov lossis sib xyaw nrog cov kua yuav tsum tau qhia rau lawv siv. Penetrants haum rau cov hlau tshwj xeeb rau kev tshawb nrhiav tsis muaj ferrous raug xaiv raws li ntau qhov kev ua tau zoo. Nws yuav siv sij hawm rau hauv tus account, tshwj xeeb tshaj yog, hluav taws kub tsis kam, ib puag ncig tus phooj ywg thiab toxicity, tshem tawm ntawm qhov yuav tsum tau rau tom qab stripping, thiab lwm yam.

Yuav tsum muaj rauchaw tswj

Qhov kev kuaj xyuas qhov tsis txaus ntseeg tsuas yog ua tiav hauv chav npaj tshwj xeeb. Nws yog ib qho tseem ceeb uas yuav tsum tau coj mus rau hauv tus account cov kev xav tau ntawm cov khoom siv sib txuas lus ntawm qhov chaw, rau cov yam ntxwv ntawm huab cua, kev txhawb nqa kev lag luam, thiab lwm yam. Chav tsev yuav tsum tau ua kom cua, tsis muaj qhov qhib nplaim taws lossis kub kub. Teeb pom kev zoo yuav tsum yog qhov dav dav thiab hauv zos, cov teeb nyob ze ntawm qhov chaw ua haujlwm yuav tsum tiv thaiv los ntawm cov teebmeem thermal.

Koj yuav tsum xub saib xyuas kev tsim kom muaj qhov pom kev zoo microclimate - tsuas yog nyob rau hauv cov xwm txheej zoo tuaj yeem ua kom pom qhov tsis zoo ntawm cov xim. GOST 18442-80, tshwj xeeb, qhia tias huab cua yuav tsum qhuav thiab sov - yog tias tsim nyog, kom ua tiav cov yam ntxwv no, koj tuaj yeem siv lub tshuab cua sov infrared uas yuav qhuav tus tsim tawm ntawm qib 5 ° C. Cov cuab yeej cuab tam yuav nyob ntawm txoj kev siv tshuaj lom neeg. Tshwj xeeb tshaj yog, cov phom phom, cov kaus poom aerosol, txhuam hniav, thiab lwm yam tuaj yeem siv los siv tib lub penetrant.

Npaj lub hauv paus seam

Txoj kev txuas tseem tab tom npaj rau kev ua haujlwm tsis raug. Yog hais tias muaj cov lus hais roughness los yog paug rau ntawm qhov chaw, koj tuaj yeem siv cov khoom zoo-grained thiab ua lub teeb ua haujlwm. Tom ntej no yog degreasing. Rau txoj haujlwm no, ib qho ntawm cov khoom siv kuaj pom qhov tsis zoo tuaj yeem siv tau, tab sis nws yog ib qho tseem ceeb uas nws muab cov nyhuv degreasing, thiab tseem zoo dua, nce ntxiv.tswj rhiab heev. Nws tsis pom zoo kom siv roj av rau cov laj thawj zoo li no, tab sis tuaj yeem siv roj av thiab acetone. Yog tias tsis muaj qhov cua hauv chav, ces degreasing yog nqa tawm tsuas yog nrog cov tshuaj aqueous raws li cov hmoov hluavtaws uas tsis tshua muaj siab. Yog tias cov xim tsis pom tseeb ntawm qhov me me yog npaj, ces tag nrho immersion nyob rau hauv ib tug degreasing muaj pes tsawg leeg kuj siv tau. Hauv lwm qhov xwm txheej, txawm tias cov txheej txheem ntawm kev txau mus rau thaj chaw lub hom phiaj lossis daim ntawv thov nrog cov ntaub qhwv ntub hauv cov tshuaj yog siv.

Thov penetrant

Ua ntej ntawm tag nrho, qhov taw qhia penetrant yog siv. Raws li nrog degreasing, cov txheej txheem no tuaj yeem ua tiav los ntawm kev txau, dipping lossis txhuam, nyob ntawm seb tus yam ntxwv ntawm lub workpiece. Ntxiv mus, daim ntawv thov yuav tsum tau nqa tawm nyob rau hauv ob peb txheej (4-6) thiab thiaj li hais tias txhua yav dhau los txheej ntawm muaj pes tsawg leeg tsis muaj sij hawm kom qhuav. Tsis tas li ntawd, txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau nws, nws yuav tsum tau xaiv cov xim tsis zoo ntawm cov welds, cov welds yuav pom qhov ua tau zoo, txhua txheej tom ntej yuav tsum npog thaj tsam loj dua li yav dhau los. Qhov no yog vim qhov tseeb tias txhua txheej tshiab yuav yaj lub contour ntawm qhov chaw dhau los, tiv thaiv kev hloov pauv thiab sagging, uas tuaj yeem pom tau tias yog cov kab nrib pleb cuav. Yog tias qhov kev ua haujlwm tau ua nyob rau hauv cov xwm txheej ntawm qhov kub tsis zoo, ces tus nkag mus rau nws tus kheej yuav tsum muaj lub xeev ntawm li 15 ° C.

Penetrant tshem tawm

Tam sim ntawd tom qab daim ntawv thov, qhov taw qhia zaj duab xis yuav tsum tau muab tshem tawm siv cov ntaub so ntswg huv lossis ntaub tsis ntxhibpawg. Cov khoom siv yuav tsum tau ua ntej moistened nrog ethyl cawv thiab qhov chaw ntxuav kom txog thaum lub txheej yog tshem tawm tag nrho. Teeb meem tuaj yeem tshwm sim yog tias kev ua haujlwm tau ua rau ntawm qhov chaw ntawm cov hlau ntxhib - qhov no, nws ua rau kev txiav txim siab siv lub teeb abrasives. Tom ntej no, ib qho kev sib xyaw ntawm cov roj-kerosene yog siv. Nws npog tag nrho lub hom phiaj, thiab ces tshem tawm nrog rags los yog napkins. Thaum lub sij hawm ob theem tau piav qhia, xim tsis pom kev yuav tsum ua kom lub ntsej muag huv si thiab qhuav ib ncig ntawm lub seam. Qhov no yog ib qho tseem ceeb kom tswj tau qhov tseeb ntawm cov txheej txheem tswj ntxiv.

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Raws li cov txheej txheem qhia thiab cov tshuaj ntxuav, tus tsim tawm tau siv ntau txoj hauv kev, los ntawm txhuam mus rau rab phom. Qhov tseem ceeb ntawm cov theem no yog saib xyuas cov uniformity thiab solidity ntawm txheej txheej. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo xyuas cov cuab yeej tshuaj tsuag, lub nozzles thiab lwm yam khoom siv uas cuam tshuam rau qhov zoo ntawm kev xa khoom mus rau lub hom phiaj. Tag nrho cov no yuav cuam tshuam ntxiv rau kev tswj cov xim tsis pom kev, nrog rau qhov zoo ntawm kev ua haujlwm pov thawj tom ntej. Kev ziab yog nqa tawm tom qab thov tus tsim tawm. Tej zaum nws yuav tsis ua, tos rau polymerization nyob rau hauv tej yam ntuj tso, tab sis kom ceev cov txheej txheem, kev siv ntawm tsawg-power chaw tso cua sov yog tso cai.

Kev tshuaj xyuas thaj chaw tswj hwm

Thaum tus tsim tawm qhuav, koj tuaj yeem npaj tshuaj xyuas nws los ntawm kev tos lwm 30 feeb lossis li ntawd. Kev tswj xyuas ntxiv los ntawm cov txheej txheem ntawm cov xim tsis pom kev muaj feem xyuam nrog kev siv lub iav magnifying,muab qhov tsawg kawg nkaus ntawm 5x magnification. Yog tias siv txheej txheej txheej txheej txheej txheej, qhov kev sim tuaj yeem ua tiav sai li 2 feeb tom qab ua tiav nrog tus tsim tawm.

Thaum lub sijhawm ntsuas txheej txheem, tus neeg teb xov tooj ntes cov yam ntxwv ntawm qhov stains sab laug - tshwj xeeb, kaw qhov ntev ntawm cov contours, cov duab, thiab lwm yam. Lub luag haujlwm tseem ceeb ntawm kev kuaj pom qhov tsis zoo yog txhawm rau txheeb xyuas qhov tsis zoo ntawm qhov chaw uas pom tseeb ntawm lawv tus kheej. tom qab ua tiav cov txheej txheem. Ob qho tib si kev puas tsuaj thiab cov kab mob corrosive nres, nrog rau cov kab nrib pleb nrog ntau dhau sagging tuaj yeem txheeb xyuas.

Kev nyab xeeb hauv kev kuaj pom qhov tsis txaus

Yuav tsum tau ntsuas kev nyab xeeb yog vim muaj kev hem thawj ntawm hluav taws thiab tawg thaum kuaj pom qhov tsis txaus. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau npaj tag nrho, nrog rau cov paj rwb robe, headdress thiab roj hmab hnab looj tes, uas yuav tsum tau coated nrog talcum hmoov. Ntawm qhov chaw nws tus kheej, kev ntsuas kev ruaj ntseg yuav tsum tau ua kom pom tseeb. Thaum lub sij hawm tus txheej txheem, yuav tsum tsis txhob qhib qhov chaw ntawm hluav taws los yog sparks. Yog tias qhov kev ntsuam xyuas xim nkag mus tau ua tsis tu ncua hauv tib chav, qhov tsim nyog tsis haus luam yeeb thiab tiv thaiv hluav taws yuav tsum tau teeb tsa. Rags, cov ntaub so thiab cov khoom siv hluav taws xob yuav tsum muab khaws cia rau hauv lub thawv hluav taws kub.

Zaj lus

Nws yuav tsis yog qhov yuav tsum xav txog qhov kev ntsuas qhov zoo ntawm qhov vuamraws li kev pom zoo, xaiv nws los ntawm ntau yam ntawm lwm txoj kev. Qhov no yog ib txoj kev qhia tshwj xeeb ntawm kev ntsuam xyuas, uas yog tsom tshwj xeeb rau kev tsom xam ntawm qhov chaw ntawm lub workpiece. Ntawd yog, kev kuaj pom xim tsis zoo tsis yog kev ntsuas kev tswj hwm, tab sis muab cov ntaub ntawv hais txog qhov tsis zoo sab nraud nrog kev ua haujlwm siab. Yog tias txoj kev no tau ntxiv nrog rau lwm txoj hauv kev rau kev kawm cov qauv sab hauv ntawm lub vuam, cov ntaub ntawv ua tiav ntawm cov qauv ntawm cov hlau tuaj yeem tau txais. Tsis tas li ntawd, ib qho kev txiav txim siab twb tau ua los ntawm kev kho qhov teeb meem uas tau txheeb xyuas. Qee qhov xwm txheej, kev vuam thib ob yog ua tiav - qhov no yuav nyob ntawm tus lej thiab qhov tseem ceeb ntawm qhov tsis xws luag hauv cov ntsiab lus cuam tshuam rau lub zog ntawm cov qauv ua haujlwm. Qee zaum kev daws teeb meem ntawm hom no kuj tseem siv los txheeb xyuas cov qauv ntawm cov seams qub thiab cov pob qij txha hauv cov qauv ua haujlwm.