Semi-automatic welding yog ib qho ntawm ntau yam ntawm arc vuam, qhov twg cov txheej txheem vuam tshwm sim vim cov hlau electrode nkag mus rau thaj chaw ua haujlwm. Semi-automatic welding tuaj yeem ua tsis tau tsuas yog nyob rau hauv shielding gases, tab sis kuj los ntawm txoj kev ntawm ib tug tshwj xeeb flux-cored hlau, tsis muaj kev siv ntawm active los yog inert roj. Kev tiv thaiv roj thaum ua haujlwm yog xav tau los ntawm qhov tsis zoo ntawm huab cua ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob thiab cov hlau puag.
Ib qho kev cog lus hauv kev vuam niaj hnub no yog vuam ib nrab tsis siv neeg tsis siv cov roj inert lossis nquag siv cov vuam tshwj xeeb flux-cored lossis flux-cored hlau. Qhov no yog ib lub raj steel uas muaj flux los yog, nyob rau hauv lwm yam lus, vuam hmoov, zoo ib yam li nyob rau hauv muaj pes tsawg leeg rau txheej txheej.zoo tib yam electrode. Nyob rau hauv qhov kub ntawm qhov kub, qhov kub hnyiab tawm, tsim kom muaj huab cua tiv thaiv hauv qhov chaw vuam.
Los ntawm lub hauv paus ntsiab lus ntawm kev ua haujlwm, xws li vuam zoo li cov txheej txheem vuam siv cov electrode yooj yim. Qhov zoo ntawm hom semi-automatic vuam yog ib qho kev xaiv dav ntawm vuam hlau uas muaj cov tshuaj sib txawv, nrog kev pab los ntawm cov yam ntxwv ntawm cov seam thiab cov khoom ntawm lub arc yog tsim, thaum tsis tas yuav siv roj. lub tog raj kheej. Qhov tsis zoo muaj xws li ingress ntawm slag rau hauv thaj chaw ua haujlwm, uas yuav tsum tau siv cov seam ntxiv rau kev sib txuas zoo thiab txhim khu kev qha ntawm cov khoom yuav tsum tau welded.
Semi-automatic shielded roj vuam tau dhau los ua dav hauv 20 xyoo dhau los. Hom vuam no tuaj yeem ua tau los ntawm kev siv ob lub thev naus laus zis - thaum vuam siv cov roj inert (argon, helium lossis lwm hom roj sib xyaw) thiab siv cov khoom siv hluav taws xob lossis cov pa roj carbon dioxide. Thawj thev naus laus zis hu ua MIG (Metal Inert Gas), qhov thib ob - MAG (Metal Active Gas).
Lub luag haujlwm tseem ceeb ntawm lub tog raj kheej roj txo qhov muaj peev xwm ntawm kev siv hom vuam no hauv qhov chaw qhib, tab sis tseem tsis muaj qhov sib piv ntawm hom no hais txog kev ua tau zoo rau kev vuam ruaj khov. Semi-automatic vuam siv vuam los yog electrode hlau, uas muaj manganese los yog silicon, yog nqa tawm nrog nws cov khoom tas li mus rau qhov chaw ua haujlwm. Ib txhij nrog cov xaim, cov roj nquag lossis inert yog muab los tiv thaiv qhov tsis zoo ntawm huab cua.
Hnub no, ib nrab tsis siv neeg vuam, tus nqi uas tuaj yeem sib txawv hauv ntau lub koom haum kev lag luam thiab cov khw muag khoom hauv online, yog muag hauv ntau hom. Tus nqi yog feem ntau cuam tshuam los ntawm cov chaw tsim khoom, qhov zoo thiab cov yam ntxwv ntawm cov khoom siv, kev ntseeg siab thiab kev nyab xeeb hauv kev siv. Ua-nws-koj tus kheej semi-automatic vuam, thaum tag nrho cov qauv tsim nyog thiab cov lus qhia tuaj yeem pom tau yooj yim hauv Is Taws Nem, tso cai rau koj txuag nyiaj tseem ceeb ntawm nws qhov kev yuav khoom. Raws li kev xyaum qhia, cov tshuab vuam hauv tsev yog qhov ua tau zoo nyob rau hauv tsis muaj kev ua tsis zoo rau cov qauv tsim los ntawm lub Hoobkas raws li lawv txoj kev ntseeg tau thiab qhov zoo ntawm cov vuam.
