Uma usebenzisa ama-electrode ukushisela i-arc, umshini wokushisela odingekayo ulula kakhulu, futhi ungakhetha umshini wokushisela we-AC noma we-DC. Ngaphezu kwalokho, asikho isidingo semishini yokusiza ngokweqile lapho ushisela, inqobo nje uma kukhona amathuluzi okusiza alula. Le mishini yokushisela ilula ngesakhiwo, ishibhile ngentengo, futhi kulula ukuyinakekela. Ngenxa yokutshalwa kwezimali okuphansi ekuthengeni imishini, ukushisela i-arc ye-electrode kuye kwasetshenziswa kabanzi ekukhiqizweni kwezimboni.
Ubuchwepheshe bokushisela i-electrode arc abugcini nje ngokusebenza kokugcwalisa insimbi ku-weldment, kodwa futhi abudingi ukwethula igesi yokuvikela eyengeziwe ngesikhathi sokusetshenziswa. Ngesikhathi sokushisa i-arc, ugesi ophakathi kwe-electrode kanye ne-weldment udala ichibi elincibilikisiwe, kuyilapho i-electrode ngokwayo ikhiqiza imikhiqizo yokushisa esebenzisana ukwakha igesi yokuvikela evikela ichibi elincibilikisiwe kanye ne-weld. Ngaphezu kwalokho, isakhiwo senduku yokuxhuma senzelwe ukuba simelane nomoya kakhulu futhi siqine ekumelaneni nomoya, okwenza kube nokushisela kwekhwalithi ephezulu endaweni enomoya.
I-electrode arcukushiselainezinzuzo zokusebenza okulula kanye nobubanzi bokusetshenziswa. Ifanelekela ukushisela inani elincane lemikhiqizo noma amaqoqo amancane, ikakhulukazi lawo ma-weld okunzima ukuwashisela ngemishini efana nezimo ezingavamile nobude obufushane. Uma usebenzisa ubuchwepheshe bokushisela be-stick arc, indawo yokushisela ayinqunyelwe, futhi ingasetshenziswa kalula ngisho nasezindaweni ezincane noma ezindaweni eziyinkimbinkimbi. Ngaphezu kwalokho, imishini edingekayo yobuchwepheshe bokushisela be-electrode arc ilula, akukho gesi esekelayo esetshenziswayo, futhi izinga lekhono lomqhubi aliphezulu kakhulu.
Ukusebenza kobuchwepheshe bokushisela i-electrode arc kubanzi kakhulu, futhi kufanelekile ukushisela cishe zonke izinsimbi ezijwayelekile kanye nama-alloy. Ngokukhetha i-electrode efanele, ukushisela kungatholakala ezintweni ezahlukene, okuhlanganisa insimbi e-alloy ephansi, insimbi yekhabhoni, insimbi e-alloy ephezulu kanye nezinsimbi ezahlukene ezingezona i-ferrous. Ngaphezu kwalokho, ama-electrode angasetshenziswa ukushisela izinhlobo ezahlukene zezinto zokusebenza, njengezinsimbi ezingafani, kanye nemisebenzi ehlukahlukene yokushisela njengokulungisa ukushisela kwensimbi ephonswe kanye nokushisela okungaphezulu kwezinto zensimbi ezahlukahlukene. I-electrode ngokwayo inganikeza nenani elithile legesi yokuvikela ukugwema izinkinga ezifana nokushisela kwe-weld. Ngesikhathi esifanayo, insimbi yokugcwalisa ingathuthukisa namandla nokuqina kwe-weld. Ezindaweni ezinzima njengemimoya enamandla, ubuchwepheshe bokushisela i-electrode arc bungagcina imiphumela emihle, kuqinisekiswe ikhwalithi kanye nokusebenza kahle kwemisebenzi yokushisela.
Inqubo yokushisela inqunywa ngokwezakhiwo zezinto zensimbi, futhi izinto zensimbi ezahlukene zidinga amasu okushisela ahambisanayo. Ngokuvamile, insimbi yekhabhoni, insimbi e-alloy ephansi, insimbi engagqwali, insimbi engagqwali engashisi, insimbi engashisi, ithusi kanye nezinsimbi zazo zingashiselwa ngezindlela zokushisela ezivamile. Kodwa-ke, kwezinye izinto zensimbi, njengensimbi ephothiwe, insimbi enamandla aphezulu kanye nensimbi eqinile, kungadingeka ukwelashwa kokushisa noma kokushisa ngemva kokushisa, noma kungasetshenziswa amasu okushisela ahlanganisiwe. Kodwa-ke, izinsimbi eziphansi zokuncibilika (njenge-zinc, i-lead, i-tin kanye nezinsimbi zazo) kanye nezinsimbi eziphikisayo (njenge-titanium, i-niobium, i-zirconium, njll.) azikwazi ukushiselwa kusetshenziswa izinqubo zokushisela ezivamile. Ngakho-ke, ngaphambi kokushisela, kubalulekile ukuhlaziya ngokucophelela nokuhlola izinto, bese ukhetha ubuchwepheshe bokushisela obufanele kanye nenqubo ngokuya ngesimo sangempela.
Imikhiqizo enjalo ivame ukuba nezakhiwo eziyinkimbinkimbi kanye nezimo ezahlukahlukene, ezidinga ukusebenza ngezandla kanye nezinqubo zokushisela ezibucayi ukuqinisekisa ikhwalithi nokuthembeka kokushisela. Njengoba inqubo yokushisela idinga amakhono ochwepheshe kanye nolwazi, izindlela zokukhiqiza ezenziwe ngomshini nezizenzakalelayo azifanele lolu hlobo lomkhiqizo. Ngesikhathi esifanayo, lolu hlobo lomkhiqizo luvame ukuba nentengo ephezulu yeyunithi noma inqwaba encane yokukhiqiza, futhi ludinga ukukhiqizwa ngendlela eqondiwe. Ngakho-ke, kulolu hlobo lomkhiqizo, indlela yokukhiqiza efaneleke kakhulu ukushisela ngesandla kanye nokukhiqizwa kwenqwaba encane ukuqinisekisa ikhwalithi kanye nokusebenza kahle kokukhiqiza. Ngesikhathi esifanayo, ubuchwepheshe bobuchwepheshe kanye nolwazi kuyadingeka ekufakweni nasekugcinweni ukuqinisekisa ukusetshenziswa okuvamile nokuphepha komkhiqizo.
Isikhathi sokuthunyelwe: Meyi-25-2023