Nyob rau hauv lub teb ntawm vuam, xaiv txoj cai vuam pas nrig yog qhov tseem ceeb li xaiv cov vuam kaus mom hlau. Nws cuam tshuam ncaj qha cuam tshuam rau qhov zoo, lub zog, thiab ruaj khov ntawm weld. Rau ob qho novice thiab kev paub txog welders, to taub yuav ua li cas xaiv tus pas nrig vuam pas dej tuaj yeem yog txoj kev txaus siab, nws dhau los ua kev tswj.
Xav Txog Cov Hlau Hlau
Thawj thiab foremost qhov tseem ceeb kom xav txog yog lub hauv paus hlau tau welded. Cov hlau sib txawv xav tau cov kab hlau vuam kom paub meej tias muaj kev sib raug zoo. Piv txwv li, yog tias koj ua haujlwm nrog cov hlau me me, uas yog ib qho ntawm cov hlau uas muaj hlau hauv vuam, muaj cov pas nrig tau tsim rau nws. Cov pas nrig no tau tsim kom phim cov tshuaj lom neeg muaj pes tsawg leeg thiab cov neeg kho tshuab ntawm cov hlau me me, ua rau hauv cov ntawv wels uas muaj zog thiab sib xws.
Thaum cuam tshuam nrog stainless hlau, kev xaiv ntawm vuam pas nrig ua ntau dua. Stainless hlau muaj cov qhab nia sib txawv, thiab cov nqaj hlau yuav tsum sib haum rau qib tshwj xeeb kom tswj kev txhim kho corrosion thiab tshuab muaj zog. Siv tus pas nrig tsis haum rau qib stainless hlau tuaj yeem ua rau welds uas nquag yuav xeb thiab tsis tuaj yeem tswj hwm kev ntxhov siab.
Aluminium yog lwm cov hlau uas yuav tsum tau saib xyuas tshwj xeeb. Vuam aluminium feem ntau yuav tsum tau cov pas nrig uas tau sib xws nrog nws cov khoom ntiag tug, xws li nws lub ntsiab lus melting. Cov pas nrig no pab tiv thaiv cov teeb meem xws li kev tawg thiab ua kom muaj kev sib luag ntawm cov hlau thiab Weld.
Vuam txheej txheem thiab txoj haujlwm
Txoj kev vuam vuam koj siv kuj ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab txoj cai vuam pas nrig. Cov txheej txheem sib txawv sib txawv, xws li Shielded hlau vuam (smaw), roj glux {{1} {1} {1} {1} Rau smaw, uas feem ntau yog hu ua stick vuam, hom rod siv yog qhov tseem ceeb rau arc ruaj khov, nkag mus rau, thiab cov hlaws cov tsos.
Vuam txoj hauj lwm yog lwm qhov tseem ceeb. Vuam vuam tuaj yeem ua tiav rau hauv tiaj, kab rov tav, ntsug, lossis nyiaj ntau dua. Qee cov pas nrig tau tsim rau cov haujlwm tshwj xeeb. Piv txwv li, muaj cov pas nrig uas ua tau zoo nyob rau hauv cov chaw ntsug thiab tshaj plaws, muab cov hlau zoo dua qub thiab tsis quav ntsej los ntawm sagging lossis dripping. Cov pas nrig no muaj cov txheej txheem flux txheej tshwj xeeb uas pab tuav cov hlau molten rau hauv qhov chaw thaum lub sijhawm vuam.
Ob leeg tsim thiab cov kev pabcuam
Tus tsim qauv ntawm Weld sib koom tes cuam tshuam rau kev xaiv vuam pas nrig ib yam nkaus. Cov pob qij txha tuaj yeem ua pob tw pob qij txha, ncej puab pob qij txha, Tee pob qij txha, thiab lawv yuav muaj cov tuab tuab. Thicker sib koom ua ke feem ntau yuav tsum muaj cov pas nrig nrog cov nqi xa nqi ntau dua thiab kev nkag tau zoo dua los xyuas kom meej rau cov weld ua ke kom huv. Thisner cov ntaub ntawv, ntawm qhov tod tes, xav tau cov pas nrig uas tsim cov cua sov tsawg kom tsis txhob hlawv cov hlau.
Koj kuj yuav tsum xav txog cov kev pabcuam uas cov kev pabcuam uas muaj feem rau peb feem yuav raug rau. Yog tias welded tivthaiv yuav muaj nyob rau hauv cov nra hnyav, koj xav tau ib tug vuam pas nrig uas muab lub zog siab tensile muaj zog. Rau qhov uas yuav raug rau qhov kub thiab txias, pas nrig nrog cov cua sov zoo yog qhov tsim nyog. Hauv kev xeb ib puag ncig, xws li cov dej noo lossis cov tshuaj lom neeg, ib tus pas uas muaj cov tshuaj corrosion tseem ceeb tshaj plaws yog qhov ua kom muaj weld.
Flux txheej thiab cov taub
Flux txheej ntawm cov pas nrig vuam muab ntau lub hom phiaj, nrog rau kev tiv thaiv weld los ntawm cov arc, thiab muab cov kev them nqi me me kom qeeb qeeb. Cov txheej txheem sib txawv yog tsim rau cov ntawv thov sib txawv. Qee cov txheej txheej muaj qhov zoo dua arc ruaj khov, thaum lwm tus muab txhim kho slag tshem tawm lossis txhim kho cov neeg kho tshuab ntawm Weld.
Qhov txoj kab uas hla ntawm lub vuam pas nrig kuj tseem yog qhov tseem ceeb tshaj plaws. Nws yuav tsum tau sib phim rau cov tuab ntawm lub hauv paus hlau thiab cov vuam tam sim no. Txoj cai dav dav yog tias tus pas nrig lub taub yuav tsum muaj sib npaug nrog cov tuab ntawm cov hlau. Siv tus pas uas me me me me yuav tsis muaj qhov nkag mus txaus, thaum lub pas dej uas loj heev tuaj yeem ua rau muaj kev kub ntxhov dhau los thiab ua rau sib txawv.
Hauv kev xaus, xaiv txoj cai vuam pas nrig koom nrog kev txiav txim siab ntau yam, suav nrog cov qauv vuam, cov kev pabcuam sib koom ua ke, cov txheej txheem flux, thiab lub taub. Los ntawm kev coj cov xwm txheej no mus rau hauv tus account, Welders tuaj yeem xaiv tus pas nrig uas ua kom muaj siab- zoo, thiab cov khoom siv ruaj khov. Nws tseem muaj txiaj ntsig zoo rau kev xa mus rau kev vuam cov kab kos, cov lus pom zoo kom pom zoo, thiab nrhiav cov lus qhia los ntawm cov neeg muaj kev paub txog kev vam meej thaum ua kev txiav txim siab.
