Aluminium, nrog nws lub teeb yuag, corrosionight tsis kam, thiab cov khoom siv thermal zoo, yog siv dav hauv kev lag luam xws li kev lag luam, aerospace, thiab kev tsim kho. Txawm li cas los xij, vuam aluminium tsis yog yooj yim raws li yooj yim li vuam carbon hlau, thiab mig (ib txoj kev siv hlau txuas ntxiv, yuav tsum muaj cov tswv yim tshwj xeeb. Yog li, yuav ua li cas Mig Weld Aluminium zoo? Cia peb ua kom tawg cov theem tseem ceeb thiab kev txiav txim siab tseem ceeb.
Ua ntej, muaj kev npaj txaus yog lub hauv paus ntawm kev vam meej Aluminium mig vuam. Aluminium yog cov kev hloov pauv heev thiab yooj yim tsim cov txheej txheem xim dense (txhuas oxide) ntawm nws cov npoo av, uas muaj ntau dua melting taw tes dua li aluminium. Yog tias tsis tshem tawm, txheej oxide no yuav tiv thaiv kev tsim kho kom raug ntawm cov hlau hauv paus thiab cov xua xaij hlau, coj mus rau qhov tsis xws luag lossis tsis xws luag zoo li porosity. Yog li ntawd, tu lub workpiece nto yog qhov tseem ceeb heev. Siv tus hlau stainless hlau txhuam (mob siab rau txhuas kom tsis txhob muaj qhov sib xyaw kom huv, lossis siv tshuaj txhuam tshuaj ntxuav kom meej rau txhuas kom tshem tawm oxides, roj, thiab av. Tom qab tu, zam kev kov ib thaj chaw ntxuav nrog ob txhais tes liab qab los tiv thaiv cov roj ntawm daim tawv nqaij hloov mus rau saum npoo.
Tom ntej no, xaiv cov khoom zoo thiab cov ntaub ntawv yog tseem ceeb heev. Rau mig welding txhuas, mig tua hluav taws xob muaj peev xwm tuav txhuas yog qhov tsim nyog {1} {- Rub hlau feeder. Aluminium sau xaim xaim yog mos thiab nquag mus rau Kinking, yog li cov spool ncaj qha los ntawm ib qho me me sib txhuam thiab ua kom cov xov hlau ncaj ncees, feem ntau yog rau cov xov hlau nyias. Qhov kev xaiv ntawm cov tub rog xaij yog nyob ntawm hom txhuas tau welded. Cov kev xaiv sib xws suav nrog 4043 (ntau yam rau General Alloys Alloys) thiab 5356 (zoo tagnrho rau cov muaj zog dua). Ib qho ntxiv, tiv thaiv cov roj yog qhov tseem ceeb: Ntshiab kev xaiv yog qhov kev xaiv qauv rau Arc. Raws li kev tiv thaiv oxidation thaum lub sijhawm vuam.
Teeb tsa qhov tseeb vuam qhov tsis yog yog lwm kauj ruam tseem ceeb. Aluminium muaj siab thermal conductivity, txhais tau nws dissipates tshav kub sai sai, yog li siab dua cov cua sov ntxiv yog xav tau piv rau vuam hlau. Qhov voltage thiab hlau pub khoom noj ceev ceev (uas cuam tshuam nrog nrog amperage) yuav tsum sib phim rau cov tuab ntawm cov txhuas. Raws li cov lus qhia dav dav, rau 1/8-nti (3mm) tuab txhuas, ib qho xaim pub ceev ceev ntawm 200-300 volts yog qhov pib tau raws li kev sib txuas thiab cov khoom siv tshwj xeeb. Nws tseem yog ib qho tseem ceeb uas yuav tau siv ncaj qha rau electrode zoo (dcep) polarity, raws li qhov no pab tawg cov txheej oxide thiab ua kom pom tseeb kev coj ua kom raug.
Thaum lub sij hawm vuam txheej txheem, txheej txheem ua si lub luag haujlwm txiav txim siab hauv Weld zoo. Tswj kev taug kev ncig ua si thiab ua kom lub tshuab tua neeg nyob rau 10-15 Degree Riam ntawm lub pas dej weld) kom ntseeg tau cov kev pab roj fais fab thiab oxide tshem tawm. Qhov kev ncua deb ntawm cov ncauj lus sib cuag thiab cov ua haujlwm (STE {}} Tsom rau kev tsim cov pas dej Weld pom kev: lub pas dej yuav tsum tau ua kua tab sis tsis muaj qhov loj heev, raws li ntau dhau los yuav ua rau hlawv -} los ntawm, tshwj xeeb ntawm txhuas. Rau cov txheej txheem welds ntev dua, siv cov txheej txheem sib tw (vuam luv ntu nrog kev ua kom txias dua) kom tiv thaiv kom tsis txhob muaj qhov tsis sib xws vim nws qhov kev nthuav dav tsis zoo thiab muaj kev nthuav dav.
Tshaj tawm -} vuam kev saib xyuas kuj tseem tsim nyog sau cia. Cia tus weld kom txias; Zam kev quenching nrog dej, raws li qhov no tuaj yeem ua rau muaj kev ntxhov siab kub thiab cuam tshuam rau Weld lub zog. Tom qab txias, tshawb xyuas weld rau tej yam tsis xws luag: zoo aluminium weld yuav tsum tau du, hnav ris tsho du, thiab dawb ntawm cov kab nrib pleb, lossis undercut. Yog tias pom me me yog pom, lawv tuaj yeem kho tau los ntawm rewelding cov chaw cuam tshuam nrog kev hloov kho kom raug.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias kev xyaum yog qhov tseem ceeb rau kev txawj aluminium mig vuam. Qhov muag muag ntawm cov hlau, qhov kev xav tau rau kev tswj tshav kub kub, thiab rhiab heev rau oxide txheej ua rau nws muaj kev txawj uas txhim kho nrog kev rov ua dua. Pib nrog seem ntawm tib cov tuab tuab thiab alloy raws li koj qhov project los kuaj cov tsis muaj thiab kho koj cov txheej txheem ua ntej mus rau qhov tseeb ua haujlwm.
Hauv cov ntsiab lus, MIG vuam txhuas yuav tsum tau npaj ua tib zoo, cov cuab yeej siv kom tsim nyog, chaw ua haujlwm raug, thiab cov txuj ci zoo. Los ntawm kev tu kom huv rau saum npoo av, ua kom pom cov hlau ncaj, thiab tswj cov kev tawm suab thaum tshav kub, koj tuaj yeem ua tiav muaj zog, siab} Cov khoom tau zoo welds. Txawm hais tias rau kev lag luam kev lag luam lossis DIY cov phiaj xwm, mastering cov kauj ruam no yuav ua Aluminium mig vuam ib tug tswj tau thiab txhim khu kev qha. Raws li txhuas txuas ntxiv yog cov khoom siv ntawm kev xaiv hauv lub teeb yuag thiab siab- Kev ua kev paub zoo nyob rau hauv kev tsim khoom lag luam thiab cov khoom lag luam cable.
