Argon arc vuam yuav tsum nruj heev xaiv cov khoom siv electrode, uas muaj ntau yam tseem ceeb:
Ua ntej, qhov kub thiab txias stability: qhov no yog thawj zaug ntawm cov khoom siv electrode. Nyob rau hauv ib puag ncig kub kub welded, lub electrode yuav tsum ruaj khov thiab tsis yooj yim yaj los yog hlawv. Txwv tsis pub, tsis tsuas yog cov electrode nws tus kheej yuav tau noj sai, tab sis nws kuj yuav ua rau lub arc mus drift, ua rau arc tsis ruaj khov. Txhawm rau ua qhov teeb meem loj dua, thaum lub electrode melts, nws cov khoom yuav nkag mus rau hauv lub pas dej ua ke, ua rau cov kab mob sib kis, ua rau cov vuam tsis zoo thiab cuam tshuam rau qhov zoo ntawm cov vuam.
Thib ob, lub zog ntawm hluav taws xob emission: cov khoom siv hluav taws xob zoo heev yuav tsum muaj kev khiav tawm me me, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias, yuav tsum muaj peev xwm ua tau zoo heev thermoelectric emission. Qhov no ua kom muaj kev ruaj khov ntawm cov khoom siv hluav taws xob thaum lub sij hawm vuam, yog li tswj cov arc qhov txuas ntxiv thiab ruaj khov.
Thib peb, lub peev xwm nqa tam sim no: cov khoom siv hluav taws xob yuav tsum muaj cov khoom siv hluav taws xob zoo thiab thermal conductivity kom tiv taus cov dej ntws loj yam tsis muaj cua sov. Qhov no guarantees stability thiab efficiency nyob rau hauv lub vuam txheej txheem.
Plaub, zoo heev machining kev ua tau zoo: qhov saum npoo ntawm cov electrode yuav tsum tau finely grinded los xyuas kom meej nws qhov ntev thiab qhov tseeb ntawm lub kaum sab xis kawg. Qhov no tsis tsuas yog txhim kho qhov tseeb clamping thiab kev ntseeg tau ntawm cov electrode, tab sis kuj tseem pab tswj kev ruaj ntseg ntawm arc, kom lub arc cua sov yog ntau concentrated.
Thib tsib, tsis tshua muaj hluav taws xob hluav taws xob: Qee cov khoom siv hluav taws xob, txawm tias muaj peev xwm ntawm emitting electrons, tej zaum yuav muaj hluav taws xob thiab ua rau muaj kev hem thawj rau tib neeg kev noj qab haus huv. Yog li ntawd, thaum xaiv cov khoom siv hluav taws xob, nws yog ib qho tseem ceeb kom ntseeg tau tias lawv tsis muaj hluav taws xob lossis tsis tshua muaj hluav taws xob.
