Ii-Electrode zeSiseko seNickelimele udidi olukhethekileyo lwezinto ezisetyenziswayo zokuwelda ezenzelwe ukudibanisa ii-alloys ezisebenzayo eziphezulu kunye neentsimbi ezahlukeneyo. Uhlobo lwe-Ni327-3 (AWS A5.11 ENiCrMo-3) lune-hydrogen sodium coating ephantsi kwaye lusebenza kwi-DCEP (Direct Current Electrode Positive) polarity. Le electrode ivelisa isinyithi esigciniweyo esine-plasticity egqwesileyo, ubulukhuni, kunye nokumelana nokuqhekeka, igcina amandla aphezulu kunye nokumelana nokugqwala okuphezulu kwigumbi kunye nobushushu obuphezulu. Ukwakheka kwayo kweekhemikhali kuqinisekisa ukusebenza okuthembekileyo kwiindawo ezifuna amandla apho ii-electrodes eziqhelekileyo ziya kusilela khona.
Iimpawu zemetallurgical zezi electrodes zizenza zifaneleke ngakumbi ekudibaniseni ii-alloys ze-nickel-chromium-molybdenum. Isinyithi esifakwe kwi-deposit sidla ngokuba ne-55% ye-nickel, i-20-23% ye-chromium, kunye ne-8-10% ye-molybdenum, nto leyo eyenza isakhiwo esiqinileyo esimelana neentlobo ezahlukeneyo zokugqwala kubandakanya ukuqhekeka kwemingxuma kunye nokuqhekeka koxinzelelo lokugqwala. Iimpawu zemechanical ziquka amandla okutsalwa angaphezulu kwe-760 MPa kunye namazinga okunwebeka angaphezulu kwe-27%, okuqinisekisa amandla kunye nokuguquguquka kwi-welded joint.
Izicelo zoshishino zeIi-Electrode zeSiseko seNickelZiquka amacandelo amaninzi kuquka ukucubungula iikhemikhali, ukuvelisa umbane, kunye nobunjineli baselwandle. Zisetyenziswa kakhulu ekudibaniseni izinto ezibalulekileyo ezifana nee-reactors, ii-heat exchangers, kunye neenkqubo zepayipi ezisebenza phantsi kobushushu obuphezulu kunye neemeko zokubola. Ezi electrodes zibonisa ukusebenza kakuhle ekudibaniseni iintsimbi ezahlukeneyo kunye nokunxibelelanisa ngaphezulu kwe-carbon steel surfaces, zibonelela ngeenzuzo zoqoqosho kunye nezobugcisa ekwenziweni nasekulungisweni kwezixhobo.
Iindlela ezifanelekileyo zokuphatha kunye nokuwelda zibalulekile ukuze kusebenze kakuhle ngezi electrode.°Kucetyiswa ukuba i-C imizuzu engama-60 isuswe umswakama kwaye ithintele iingxaki ezinxulumene ne-hydrogen. Abaqhubi kufuneka bagcine ubude obufutshane be-arc kunye nokufakwa kobushushu okuphakathi ukuze kugcinwe iimpawu ze-metallurgical zesinyithi esigciniweyo. Amaqondo obushushu aphakathi kufuneka alawulwe ngaphantsi kwe-150°C, kunye nokucoca ngokucokisekileyo phakathi kweepaseji kuyimfuneko ukuqinisekisa ukuba ii-welds azinaziphene kwaye zinokumelana nokugqwala ngokufanelekileyo.
Ii-Electrode zeSiseko seNickelzibonelela ngezisombululo ezibalulekileyo kwizicelo zokuwelda ezinzima kumashishini ahlukeneyo. Uhlobo lwe-Ni327-3, oluhlangabezana neenkcukacha ze-AWS ENiCrMo-3, lubonelela ngokusebenza okuthembekileyo ngokudibanisa kwayo okulinganayo kweempawu zoomatshini kunye nokumelana nokugqwala. Ezi electrodes ziyaqhubeka nokusebenza njengezinto ezibalulekileyo ekugcineni nasekwakheni izixhobo zoshishino ezisebenza phantsi kweemeko ezimandundu zokusingqongileyo.
Ixesha leposi: Sep-09-2025