Nyob hauv lub ntiaj teb welding, kev tsim qauv "er 70s - 6" yog raws li tau txais kev ntseeg siab rau cov kws tshaj lij. Tab sis dab tsi "S" hauv tus lej alphanumeric tau qhia? Qhov ntawv yooj yim zoo li no tuav cov ntaub ntawv tseem ceeb txog cov hlau xaim thiab daim ntawv thov, cuam tshuam txhua yam ntawm Weld hlaws rau cov qauv kev ncaj ncees ntawm kev sib koom ua ke. Nkag siab nws lub ntsiab lus yog qhov tseem ceeb rau cov welders tsom rau kev txhim khu kev qha, siab {}} lub zog Welds, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov steel.
Secoding AWS ESS Vuam Hlau Qhia Tawm Nruab Nrab
Cov neeg Asmeskas cov neeg siv hluav taws xob (AWS) tau tsim cov qauv qhia ua haujlwm rau vuam, thiab er 70s- 6} ntog hauv lub moj khaum no. "Er" sawv ntsug rau "electrode, pas nrig," qhia tias nws yog tus tsim hluav taws xob vuam, thiab flux {{} cored arc vuam (FCaw).
Qhov "70" hauv er 70s- 6}}}} sawv cev rau qhov nyiaj tsawg kawg ntawm cov nyiaj muaj ntau txhiab phaus (psi). Hauv qhov no, weld hlau tsim kev siv er 70s- 6 xaim yog lav kom muaj tensile tsawg kawg ntawm 70,000 psi. Qhov no ua rau nws haum rau ntau cov kev siv ntawm cov ntawv thov uas muaj rau high- E}} E}} E}} Zoo li hauv kev tsim kho, thiab fab fab.
Unraveling qhov tseem ceeb ntawm "s"
Qhov "s" hauv er 70s - 6} sawv ntsug rau "khoom." Qhov no qhia tau tias lub hlau vuam yog cov hlau ruaj khov, raws li txwv rau flux - cored hlau. Cov xov hlau cov tawv muaj sib xyaw ntawm homogeneous hlau alloy thiab tsis muaj kev ua si sab hauv. Hloov chaw, lawv cia siab rau kev thaiv cov roj av (xws li Argon, carbon dioxide, lossis sib xyaw ntawm ob) los tiv thaiv lub pas dej weld los ntawm cov kev sib kis weld los ntawm cov kev sib kis weld
Cov xov hlau tau zoo li er 70s - 6}}} muab cov txiaj ntsig zoo. Lawv muab ib qho ruaj khov arc thaum vuam, ua rau muaj cov tswv yim tshav kub thiab muaj kev sib tw weld bead. Qhov tsis muaj ntawm cov tub ntxhais ua kua flux txhais tau tias muaj qhov sib xyaw tsis tshua muaj piv rau flux-}}} Weld kev ntxuav kom zoo. Qhov no ua rau lawv zoo tshaj plaws rau cov ntawv thov uas muaj kev huv si, zoo nkauj weld yog qhov xav tau, xws li hauv kev pom cov qauv txheej txheem lossis lub cev hauv tsheb.
Lub luag haujlwm ntawm "6" thiab cov hlau cov tshuaj xaim hluav taws xob
Tus lej kawg, "6," hauv er 70s- 6}}}}}}}}}}}}} muaj cov ntaub ntawv ntsig txog cov xaim xaim muaj pes tsawg leeg. Nws yog ib feem ntawm lub sub -} Kev faib tawm cov txheej txheem uas cov ntsiab lus tshwj xeeb ntawm cov khoom siv hauv cov hlau. ER 70s {- 6 I} Cov xaim yog tsim los rau vuam cov hlau thiab feem ntau muaj cov khoom siv roj carbon hlau thiab ib txwm muaj (Si) ua deoxidizers.
Manganese thiab silicon ua si txoj haujlwm tseem ceeb hauv cov txheej txheem vuam. Manganese pab txhawm rau txhim kho lub zog thiab tawv ntawm weld hlau, thaum tseem ua yeeb yam li lub deoxidizer tshem oxygen los ntawm Weld pas dej. Silicon, ntawm qhov tod tes, yog qhov ua tau zoo deoxidizer uas tseem txhim kho kom muaj cov mold weld hlau, txhawb kev ntub dej thiab fusion zoo dua. Cov ntsiab lus sib xyaw ua ke ntawm cov ntsiab lus alloy hauv EROYOY- 6 I} Cov xov hlau tau ua tib zoo sib tw ua haujlwm thiab siab - zoo welds.
Cov ntawv thov ntawm ER 70s - 6 hires
Vim nws muaj kev sib xyaw ua ke, versatility, thiab yooj yim ntawm kev siv, er 70s - 6 yog ib qho ntawm feem ntau dav siv vuam hlau hauv kev lag luam. Nws yog feem ntau siv nyob rau hauv kev tsim kho ntawm cov tsev, cov choj, thiab lwm yam phiaj xwm kev tsim kho, qhov twg siab} Lub zog welds yog qhov tseem ceeb rau kev ntseeg siab. Nyob rau hauv kev lag luam hauv tsheb, nws yog siv rau kev siv hlau xws li thav ntawv, ncua kev sib tw, thiab kev kaw.
ER 70s {- 6 Tseem tseem haum rau cov fabrication dav, suav nrog kev kho thiab txij nkawm thiab kev kho cov cuab yeej siv, thiab cov qauv hlau. Nws qhov sib raug zoo nrog ntau yam ntawm cov hlau ua ke thiab kev thaiv cov roj av ua rau nws mus - los xaiv rau cov haujlwm sib txawv.
Kev coj ua zoo tshaj plaws rau kev siv ER 70s - 6} xov
Txhawm rau kom ua tiav cov txiaj ntsig zoo tshaj plaws thaum siv ER 70s- 6} cov xov hlau, welders yuav tsum ua raws li qee qhov kev coj ua zoo tshaj plaws. Ua ntej, nws yog qhov tseem ceeb los xaiv cov kev tiv thaiv roj uas tsim nyog raws li lub hauv paus hlau thiab txoj kev vuam. Rau cov steel hlau vuam, sib tov ntawm Argon thiab carbon dioxide (xws li 75% feem ntau siv los muab cov nyiaj sib npaug ntawm ARC ruaj khov, thiab weld hlaws tsos.
Kom zoo xaim pub ceev thiab voltage chaw kuj tseem ceeb heev. Cov kev txwv no yuav tsum tau hloov kho raws li cov tuab tuab ntawm lub hauv paus hlau, hom sib koom ua ke, thiab txoj haujlwm vuam. Tsis tas li ntawd, kev tswj hwm kev ua haujlwm huv si thiab ua kom muaj cov kav hlau ua kom tsis muaj xeb, thiab lwm yam paug tsis zoo rau kev tsim cov helds zoo.
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Qhov "s" hauv ER 70s {- 6}} Kuv yuav zoo li nthuav dav me me, tab sis nws muaj qhov tseem ceeb me me, tab sis nws muaj qhov tseem ceeb me me, tab sis nws tuav qhov tseem ceeb me me hauv lub ntiaj teb. Los ntawm kev nkag siab lub ntsiab lus ntawm tsab ntawv no thiab tas ntawm cov hlau faib, cov Welders tuaj yeem paub txog kev txiav txim siab uas siv hlau siv rau lawv cov haujlwm. ER 70s - 6, nrog nws cov khoom siv, siab} Kev tsim cov khoom siv hauv vuam, ua rau cov khoom siv ruaj khov hauv ntau cov ntawv thov. Txawm hais tias nyob rau hauv loj- nplai ua tej yaams lossis me {}} Koj tuaj yeem ua rau txhua qhov sib txawv hauv kev ua haujlwm vuam.
