Ii-electrode ze-Welding hardfacing zimela udidi olukhethekileyo lwezinto ezisetyenziswayo ze-welding ezenzelwe ukhuseleko lomphezulu kunye nokubuyiselwa kwamacandelo. I-electrode ye-Ni307-2, ehambelana nodidi lwe-AWS A5.11 ENiCrFe-2, ingumzekelo wolu didi ngokwakhiwa kwayo kwe-nickel-base kunye neempawu ezithile zobugcisa. Le electrode inenkqubo yokugquma i-sodium ephantsi kwe-hydrogen kwaye isebenza kwi-DCEP (Direct Current Electrode Positive) polarity, okwenza ifaneleke kwizicelo apho kufuneka iimpawu zokubeka ezilawulwayo kunye nomxholo omncinci we-hydrogen. Ezi mpawu ziyibeka njengesisombululo esisebenzayo kwiimeko ezahlukeneyo zokugcinwa kwemizi-mveliso.
Ukwakheka okusisiseko kwale ntoii-electrode zokuwelda eziqinileyoLe mveliso isekelwe kwinkqubo ye-alloy ye-nickel-chromium-iron. Olu dibaniso lwe-metallurgical lubonelela ngeempawu ezilungeleleneyo kuquka ukumelana okuhle nokugqwala kunye ne-oxidation, kunye namandla agcinweyo kumaqondo obushushu aphezulu. Isiseko se-nickel-base sinika ukuqina okuphezulu xa kuthelekiswa nee-electrodes zesinyithi eziqhelekileyo, kunciphisa ukuqhekeka phantsi kweemeko zoxinzelelo lobushushu. Ibhalansi ethile ye-alloy iqinisekisa ukuhambelana nezixhobo ezahlukeneyo zesiseko ngelixa ihambisa iimpawu ezifunekayo zomphezulu.
Uphawu olubalulekileyo lwale ntoii-electrode zokuwelda eziqinileyoLe nto iyenza ibe ne-hydrogen sodium coating engaphantsi kwe-hydrogen. Olu hlobo lokufaka lunciphisa ngokufanelekileyo umxholo we-hydrogen kwisinyithi esigciniweyo, ngaloo ndlela lunciphisa umngcipheko wokuqhekeka okubangelwa yi-hydrogen kumaleko oqinileyo. Ukufaka kukwanceda kwiimpawu ze-arc ezizinzileyo, ukudluliselwa kwesinyithi okugudileyo, kunye nokuqhekeka kwe-slag okuhle. Imfuneko ye-DCEP polarity iqinisekisa uzinzo olufanelekileyo lwe-arc kunye neempawu zokungena ngelixa iphucula ukusebenza kakuhle kokufakwa ngexesha lenkqubo yokudibanisa.
Iiparameter zokusebenza kwezi mveliso ze-welding electrodes hardfacing ziquka iimpawu zokubeka ezilawulwayo kunye nokusebenza kakuhle kwe-welding. Ezi electrodes zenzelwe ukuvelisa iidiphozithi ezixineneyo, ezikumgangatho ophezulu ezine-spatter encinci kunye neprofayili ye-bead elawulwayo. Isinyithi se-weld esiphumayo sinokucutshungulwa kusetyenziswa iindlela eziqhelekileyo, okuvumela ukulungiswa kobukhulu kunye nokugqitywa komphezulu xa kufuneka. Ezi mpawu zenza i-electrode ifaneleke kwizicelo apho zombini ukusebenza komaleko oqinileyo kunye nemeko yawo yokugqibela yomphezulu zizinto ezibalulekileyo ekufuneka ziqwalaselwe.
Kwizicelo ezisebenzayo, ezi zisiseko se-nickelii-electrode zokuwelda eziqinileyoIzixhobo zisebenza ekulungiseni iinxalenye kunye neendima zokukhusela umphezulu kumacandelo ahlukeneyo emizi-mveliso. Usetyenziso oluqhelekileyo luquka ukwakha kwakhona iinxalenye ezigugileyo ezisebenza kwiindawo ezinobushushu obuphezulu, ukudibanisa iintsimbi ezahlukeneyo ezineempawu ezahlukeneyo zokwandiswa kobushushu, kunye neendawo ezigqumayo ezifuna ukumelana nokugqwala kunye namandla oomatshini. Iimpawu zobugcisa kunye neempawu zokusebenza zenza ezi electrodes zisebenze kwiimeko zolondolozo kunye nokuveliswa apho kufuneka ukhuseleko lomphezulu oluhlala ixesha elide kunye nokubuyiselwa kwecandelo.
Ixesha leposi: Oktobha-14-2025