Thaum nws los txog rau kev sib txuas tooj dag, qhov tseeb tsis yog tsuas yog qhov zoo xwb - nws yog qhov ua tau lossis tsis ua tiav rau cov khoom ruaj khov, kev ua tau zoo, thiab kev zoo nkauj. Txawm hais tias koj tab tom tsim cov khoom HVAC, cov khoom siv hluav taws xob, lossis cov khoom siv tooj dag zoo nkauj, txoj kev vuam tsis raug tuaj yeem ua rau cov seams porous, zinc poob, lossis cov tiav tsis zoo uas ua rau koj cov haujlwm tsis ua haujlwm. Yog tias koj tau tawm tsam nrog cov txiaj ntsig tsis sib xws los ntawm cov txheej txheem vuam tooj dag ib txwm muaj, nws yog lub sijhawm los saib dhau qhov yooj yim: TIG vuam tej zaum yuav yog qhov kev daws teeb meem uas koj tau nrhiav.
Ua ntej, cia peb piav qhia txog qhov tseem ceeb ntawm Kev Vuam Tooj Liab kom teeb tsa theem. Tooj Liab, ib qho sib xyaw ntawm tooj liab thiab zinc, yog qhov muaj nqis thoob plaws hauv kev lag luam rau nws qhov kev ua tau zoo thermal, tiv taus corrosion, thiab malleability - tab sis cov yam ntxwv no ua rau nws nyuaj rau vuam. Tsis zoo li hlau, tooj liab muaj qhov kub zinc qis (907 ° C) uas qis dua tooj liab lub ntsiab lus yaj (1083 ° C), txhais tau tias overheating thaum vuam tuaj yeem ua rau zinc vaporize. Qhov no tsis tsuas yog ua rau cov vuam tsis muaj zog tab sis kuj tsim cov pa lom, ntxiv kev pheej hmoo kev nyab xeeb rau cov txheej txheem. Tsis tas li ntawd, tooj liab lub thermal conductivity siab txhais tau tias cua sov dissipates sai, ua rau nws nyuaj rau tswj lub pas dej vuam ruaj khov nrog cov txheej txheem tsis meej.
Lubvuam tooj dagKev lag luam xav tau cov kev daws teeb meem uas sib npaug ntawm kev ua haujlwm zoo thiab qhov zoo, tshwj xeeb tshaj yog nyob rau hauv cov lag luam xws li tsheb, aerospace, thiab plumbing qhov twg cov khoom yuav tsum ua tau raws li cov qauv kev nyab xeeb thiab kev ua tau zoo. Rau kev tsim khoom ntau, kev sib xws yog qhov tseem ceeb - kev hloov pauv ntawm ntau qhov sib txawv ntawm lub zog vuam lossis qhov tsos tuaj yeem ua rau kev ua haujlwm kim lossis kev rov qab hu khoom. Rau kev cai lossis kev kho kom zoo nkauj, kev ua tiav zoo nkauj yog qhov tseem ceeb; kev vuam tsis zoo tuaj yeem ua rau puas tsuaj rau qhov pom ntawm cov khoom siv tooj dag, cov twj paj nruag, lossis cov ntsiab lus architectural. Cov kev xav tau kev lag luam no piav qhia vim li cas ntau tus kws tshaj lij tig mus rau TIG vuam rau kev sib koom ua ke tooj dag.
Yog li ntawd, vim li cas TIG vuam (tseem hu ua Gas Tungsten Arc Welding, GTAW) thiaj li tsim nyog rau Kev Vuam Tooj Liab? Cia peb pib nrog nws qhov kev ua haujlwm raug. TIG siv lub electrode tungsten uas tsis siv tau thiab lub pedal ko taw rau kev tswj amperage, tso cai rau cov neeg vuam kom kho qhov cua sov nkag nrog qhov tseeb tshwj xeeb. Qib kev tswj hwm no yog qhov tseem ceeb rau tooj liab: nws tiv thaiv kev kub dhau, txo qis zinc vaporization, thiab txo qhov kev pheej hmoo ntawm porosity - qhov tsis zoo hauv lwm txoj kev vuam xws li MIG lossis roj vuam. Rau cov ntawv tooj liab nyias lossis cov raj me me (feem ntau hauv kev siv hluav taws xob thiab HVAC), TIG lub peev xwm nkag cua sov qis kuj zam kev warping, khaws cia cov duab qub thiab kev ncaj ncees ntawm cov khoom.
Lwm qhov zoo ntawm kev vuam TIG rau kev sib txuas tooj dag yog nws qhov tiav huv si, tsis muaj slag. Tsis zoo li kev vuam nrog pas nrig, TIG tsis xav tau flux, uas tshem tawm qhov xav tau kev ntxuav tom qab vuam kom tshem tawm cov slag residues - txuag lub sijhawm ntau rau cov chaw ua haujlwm uas muaj neeg coob. Cov roj inert shielding (feem ntau yog argon lossis argon-helium sib xyaw) siv hauv kev vuam TIG kuj tiv thaiv lub pas dej vuam los ntawm kev ua qias tuaj hauv huab cua, tiv thaiv kev oxidation thiab ua kom muaj cov kab sib luag du, sib xws uas muaj zog thiab pom tseeb. Qhov no yog qhov hloov pauv qhov kev ua si rau cov haujlwm tooj dag kho kom zoo nkauj lossis cov khoom uas tsis tuaj yeem tiv taus corrosion, zoo li cov khoom siv hauv dej hiav txwv lossis cov kav dej.
Kev nyab xeeb yog lwm qhov chaw uas TIG ci ntsa iab rau Kev Vuam Tooj Liab. Txawm hais tias txhua txoj kev vuam tooj liab muaj kev pheej hmoo ntawm kev raug cov pa luam yeeb zinc, TIG txoj kev tswj cua sov kom raug txo qhov ntau ntawm cov pa luam yeeb zinc piv rau cov txheej txheem kub siab xws li kev vuam oxyacetylene. Thaum ua ke nrog cov cua nkag thiab cov khoom siv tiv thaiv tus kheej (PPE), TIG tsim kom muaj ib puag ncig ua haujlwm muaj kev nyab xeeb dua - qhov tseem ceeb rau cov lag luam uas tab tom nrhiav kev ua raws li OSHA thiab HSE cov cai. Tsis tas li ntawd, kev vuam TIG tsis tsim cov hluav taws xob lossis cov nplaim taws, txo cov kev phom sij hluav taws hauv cov chaw ua haujlwm nrog cov khoom siv hluav taws xob.
Nws tsim nyog sau tseg tias TIG vuam tsis yog ib qho kev daws teeb meem uas haum rau txhua tus, tab sis nws qhov kev ua tau ntau yam ua rau nws hloov tau raws li feem ntau qhov kev xav tau ntawm kev sib koom ua ke ntawm tooj dag. Nws ua haujlwm nrog ob qho tib si cov hlau tooj dag uas muaj zinc tsawg (alpha) thiab zinc siab (alpha-beta), thiab tuaj yeem ua haujlwm nrog cov tuab ntawm cov ntsuas nyias (qis dua 1.5mm) txog 9mm nrog cov ntaub ntawv sau kom raug. Rau cov tooj dag uas muaj zinc siab, kev siv cov pas nrig uas tsis muaj zinc thiab cov roj helium nplua nuj tiv thaiv ua rau txo qis kev tsim pa taws thiab porosity, ua kom ntseeg tau tias cov vuam muaj zog thiab txhim khu kev qha.
Rau cov neeg yuav khoom thiab cov neeg tsim khoom uas ntsuas cov kev xaiv vuam tooj dag, qhov kev txiav txim siab thaum kawg los rau koj qhov tseem ceeb. Yog tias koj xav tau kev ceev tshaj plaws, MIG vuam yuav tsim nyog rau cov seem tooj dag tuab dua. Tab sis yog tias qhov tseeb, kev sib xws, thiab qhov zoo tsis tuaj yeem sib tham tau - tshwj xeeb tshaj yog rau cov ntawv thov tseem ceeb lossis kev zoo nkauj - TIG vuam yog qhov kev xaiv meej. Nws daws cov teeb meem tshwj xeeb ntawm tooj dag ua cov khoom siv, ua tau raws li cov qauv nruj ntawm cov lag luam tseem ceeb, thiab xa cov txiaj ntsig uas txo qhov rov ua dua thiab txhim kho tus nqi khoom kawg.
Hauv lub ntiaj teb ntawm kev sib txuas tooj dag kom raug, kev txiav cov ces kaum nrog cov txheej txheem vuam yooj yim feem ntau ua rau muaj teeb meem ntau dua tom qab. Kev vuam TIG tsis yog ib kauj ruam ntxiv ntawm cov txheej txheem ib txwm muaj xwb - nws yog kev nqis peev rau qhov zoo uas them rov qab rau kev ua tau zoo dua, kev ua haujlwm muaj kev nyab xeeb dua, thiab cov neeg siv khoom zoo siab dua. Txawm hais tias koj yog tus tsim khoom siv lossis nyuam qhuav pib ua haujlwm nrog tooj dag, kev hloov mus rau TIG tuaj yeem yog qhov sib txawv ntawm cov txiaj ntsig zoo thiab cov txiaj ntsig zoo.
Lub sijhawm tshaj tawm: Lub Ib Hlis-07-2026