AWS Specification: AWS A5.20 is the American Welding Society specification for carbon steel electrodes for flux-cored arc welding. Lub npe E71T-1 qhia txog cov yam ntxwv ntawm cov xaim thiab cov ntawv thov.
Kev sib xyaw: Tus "E" hauv E71T-1 txhais tau hais tias nws yog ib qho hluav taws xob, thaum "71" qhia txog qhov tsawg kawg nkaus tensile lub zog hauv ksi (kilopounds ib square inch). Lub "T-1" qhia txog cov xaim flux-cored haum rau txhua txoj haujlwm vuam.
Vuam txheej txheem: Cov hlau no yog siv rau hauv flux-cored arc vuam (FCAW), ib txheej txheem uas cov tubular xaim uas muaj cov flux tsis tu ncua los ntawm rab phom vuam. Lub flux tsim ib lub shielding roj los tiv thaiv lub molten weld pas dej ua ke los ntawm atmospheric paug.
CO2 Shielding Gas: E71T-1 hlau feem ntau yog siv nrog cov roj sib xyaw tiv thaiv uas muaj cov pa roj carbon dioxide (CO2). CO2 yog tus nqi-zoo thiab muab kev nkag mus zoo, ua rau nws haum rau ntau yam kev siv vuam.
Daim ntawv thov: AWS A5.20 E71T-1 Co2 vuam hlau feem ntau yog siv rau hauv kev lag luam xws li kev tsim kho, kev tsim nkoj, kev tsim qauv, thiab kev tsim khoom dav dav qhov twg vuam cov hlau yuav tsum tau ua.
Qhov zoo: Qee qhov zoo ntawm kev siv E71T-1 xaim muaj xws li kev tso nyiaj siab, kev nkag tau zoo ntawm vuam, thiab muaj peev xwm vuam cov ntaub ntawv tuab hauv ib zaug. Cov hlau no paub txog nws cov txiaj ntsig thiab kev tsim khoom hauv kev ua haujlwm vuam.
Parameters: Nws yog ib qho tseem ceeb kom ua raws li cov chaw tsim khoom pom zoo rau cov tsis xws li qhov hluav taws xob, xaim pub ceev, thiab cov pa roj ntws kom ua tiav qhov zoo tshaj plaws weld zoo thiab kev ua haujlwm. Kev teeb tsa kom raug ua kom muaj qhov muaj zog thiab ruaj khov.
Cia thiab tuav: Kev khaws cia ntawm flux-cored vuam hlau yog qhov tseem ceeb los tiv thaiv kev nqus noo noo, uas tuaj yeem ua rau muaj qhov tsis xws luag. Khaws cov xaim hauv qhov chaw qhuav thiab ua raws li cov lus qhia tshwj xeeb rau kev tuav thiab khaws cia.
Kev xav txog kev nyab xeeb: Raws li nrog tag nrho cov txheej txheem vuam, kev nyab xeeb yog qhov tseem ceeb. Welders yuav tsum siv cov cuab yeej tiv thaiv tus kheej tsim nyog (PPE) xws li kaus mom hlau, hnab looj tes, thiab khaub ncaws. Kev ua pa kom txaus yog qhov tseem ceeb thaum siv CO2 los ua cov roj tiv thaiv.
Hauv cov ntsiab lus,AWS A5.20 E71T -1Co2 welding hlau yog ib qho kev xaiv txhim khu kev qha rau vuam cov hlau vim nws qhov kev tso nyiaj siab, kev nkag mus tau zoo, thiab ntau yam hauv kev lag luam ntau yam. Ua raws li kev siv vuam kom raug thiab ntsuas kev nyab xeeb yog qhov tseem ceeb rau kev ua tiav cov vuam zoo thiab ua kom muaj kev nyab xeeb ntawm kev ua haujlwm.