Thaum siv cov electrodes rau arc welding, lub tshuab vuam uas xav tau yog qhov yooj yim heev, thiab koj tuaj yeem xaiv lub tshuab vuam AC lossis DC. Tsis tas li ntawd, tsis tas yuav muaj cov khoom siv pabcuam ntau dhau thaum vuam, tsuav yog muaj cov cuab yeej pabcuam yooj yim. Cov tshuab vuam no yooj yim hauv cov qauv, pheej yig hauv tus nqi, thiab yooj yim rau kev saib xyuas. Vim tias kev nqis peev tsawg hauv kev yuav khoom siv, electrode arc welding tau siv dav hauv kev tsim khoom lag luam.
Cov txheej txheem vuam electrode arc tsis yog tsuas yog muaj lub luag haujlwm ntawm kev sau cov hlau rau hauv qhov vuam xwb, tab sis kuj tsis tas yuav ntxiv cov roj tiv thaiv ntxiv thaum siv. Thaum lub sijhawm cua sov arc, cov hluav taws xob ntawm lub electrode thiab qhov vuam tsim cov pas dej molten, thaum lub electrode nws tus kheej tsim cov khoom hlawv uas cuam tshuam los ua cov roj tiv thaiv uas tiv thaiv cov pas dej molten thiab qhov vuam. Tsis tas li ntawd, cov qauv ntawm cov pas nrig vuam tau tsim los kom tiv taus cua heev thiab muaj zog hauv kev tiv taus cua, ua rau kev vuam zoo hauv qhov chaw cua hlob.
Electrode arcvuammuaj qhov zoo ntawm kev siv yooj yim thiab ntau yam kev siv. Nws yog qhov tsim nyog rau kev vuam cov khoom me me lossis cov khoom me me, tshwj xeeb tshaj yog cov vuam uas nyuaj rau vuam nrog cov tshuab xws li cov duab txawv txawv thiab luv luv. Thaum siv cov thev naus laus zis stick arc welding, qhov chaw vuam tsis txwv, thiab nws tuaj yeem ua haujlwm tau yooj yim txawm tias nyob rau hauv qhov chaw nqaim lossis hauv qhov chaw nyuaj. Tsis tas li ntawd, cov khoom siv xav tau rau cov thev naus laus zis electrode arc welding yog yooj yim, tsis siv roj pabcuam, thiab qib kev txawj ntawm tus neeg teb xov tooj tsis siab dhau.
Qhov siv tau ntawm electrode arc welding technology yog dav heev, thiab nws yog qhov tsim nyog rau kev vuam yuav luag txhua tus qauv hlau thiab alloys. Los ntawm kev xaiv lub electrode kom raug, kev vuam tuaj yeem ua tiav rau ntau yam khoom siv, suav nrog cov hlau tsis tshua muaj hlau, carbon hlau, hlau alloy siab thiab ntau yam hlau tsis yog ferrous. Tsis tas li ntawd, electrodes tuaj yeem siv rau kev vuam ntau hom workpieces, xws li cov hlau sib txawv, nrog rau ntau yam kev vuam ua haujlwm xws li kev kho vuam ntawm cov hlau cam khwb cia thiab kev vuam ntawm ntau yam khoom siv hlau. Lub electrode nws tus kheej kuj tseem tuaj yeem muab qee qhov roj shielding kom tsis txhob muaj teeb meem xws li oxidation ntawm lub weld. Tib lub sijhawm, cov hlau filler kuj tseem tuaj yeem txhim kho lub zog thiab kev ruaj khov ntawm lub weld. Hauv cov chaw ib puag ncig hnyav xws li cua hlob, lub electrode arc welding technology kuj tseem tuaj yeem tswj tau cov txiaj ntsig zoo, ua kom ntseeg tau tias qhov zoo thiab kev ua haujlwm ntawm kev vuam ua haujlwm.
Cov txheej txheem vuam yog txiav txim siab raws li cov yam ntxwv ntawm cov khoom siv hlau, thiab cov khoom siv hlau sib txawv xav tau cov txheej txheem vuam sib xws. Feem ntau hais lus, cov hlau carbon, cov hlau tsis tshua muaj hlau, cov hlau tsis xeb, cov hlau tiv taus cua sov, tooj liab thiab lawv cov hlau sib xyaw tuaj yeem vuam los ntawm cov txheej txheem vuam ib txwm muaj. Txawm li cas los xij, rau qee cov khoom siv hlau, xws li hlau cam khwb cia, cov hlau muaj zog siab thiab cov hlau tawv, yuav tsum tau ua ntej lossis tom qab cua sov kho, lossis cov txheej txheem vuam sib xyaw yuav siv tau. Txawm li cas los xij, cov hlau uas tsis yaj (xws li zinc, txhuas, tin thiab lawv cov hlau sib xyaw) thiab cov hlau refractory (xws li titanium, niobium, zirconium, thiab lwm yam) tsis tuaj yeem vuam siv cov txheej txheem vuam ib txwm muaj. Yog li ntawd, ua ntej vuam, nws yog qhov tsim nyog los ua tib zoo tshuaj xyuas thiab ntsuas cov khoom siv, thiab xaiv cov txheej txheem vuam thiab cov txheej txheem tsim nyog raws li qhov xwm txheej tiag tiag.
Cov khoom no feem ntau muaj cov qauv nyuaj thiab ntau yam duab, xav tau kev ua haujlwm tes thiab cov txheej txheem vuam zoo kom ntseeg tau tias qhov zoo thiab kev ntseeg siab ntawm kev vuam. Txij li thaum cov txheej txheem vuam xav tau kev txawj thiab kev paub dhau los, cov txheej txheem tsim khoom siv tshuab thiab tsis siv neeg tsis haum rau hom khoom no. Tib lub sijhawm, hom khoom no feem ntau muaj tus nqi siab lossis cov khoom me me, thiab yuav tsum tau tsim tawm raws li lub hom phiaj. Yog li ntawd, rau hom khoom no, txoj kev tsim khoom tsim nyog tshaj plaws yog kev vuam tes thiab cov khoom me me kom ntseeg tau tias qhov zoo thiab kev ua haujlwm zoo ntawm kev tsim khoom. Tib lub sijhawm, cov thev naus laus zis thiab kev paub dhau los kuj xav tau hauv kev teeb tsa thiab kev saib xyuas kom ntseeg tau tias kev siv thiab kev nyab xeeb ntawm cov khoom.
Lub sijhawm tshaj tawm: Tsib Hlis-25-2023