Ngokufana nokumelana ne-welding, i-resistance brazing isebenzisa ukushisa kwi-bond materials kunye ne-conductivity ephezulu yombane.Njengoko kuboniswe ngegama layo, inkqubo isebenzisa umgaqo wokumelana nokuvelisa ukushisa okufunekayo kwimisebenzi yayo;njengoko umbane wombane uhamba ngesekethe equka i-workpiece, ukuchasana kwesekethe kuvelisa ubushushu.
Njengokumelana ne-welding kunye nezinye iindlela ze-welding, i-resistance brazing ifuna izixhobo ezikhethekileyo-ngokuqhelekileyo i-transformer, i-electrodes, kunye nomthombo woxinzelelo.Ukwahlula kwayo okuphambili kukuba kubandakanya ukusetyenziswa kwezinto ezongezelelweyo zokubrawuza ukudibanisa iinxalenye kunye.
Umsebenzi wokuqhafaza oxhathisayo ubandakanya ezi zigaba zilandelayo:
1. Ukulungiselela onke amacandelo, kuquka i-electrodes, ukususa ukungcola komhlaba.
2. Ukulungisa onke amacandelo kwindibano.
3. Ukuseka isekethe ebandakanya i-workpiece.
4. Ukubeka izinto zokuzalisa (ngokuqhelekileyo kwi-pre-formed okanye i-foil) phakathi kweendawo ezidibeneyo.
5. Ukuqhuba ngoku kwisekethe ukuvelisa ukushisa okufunekayo ukunyibilikisa izinto zokuzalisa kunye nokuphuhlisa ibhondi ye-metallurgical phakathi kwe-substrates.
6. Ukucima umbane wombane kunye nokugcina uxinzelelo ukuvumela izinto zebraze ukuba ziqiniswe kwaye zenze uxhulumaniso oluqinileyo phakathi kwamacandelo amabini.
7. Ukususa umdibaniso ogqityiweyo kwisixhobo kunye nokukhupha nayiphi na i-flux eseleyo.
8. Ukuhlola umdibaniso ogqityiweyo.
Xa kuthelekiswa nezinye iindlela ze-welding, i-resistance brazing ibonelela ngeenzuzo ezininzi.Ngokomzekelo, ngokungafaniyo ne-welding yendawo yendabuko, i-resistance brazing inikeza oku kulandelayo:
● Amaqondo obushushu aphezulu okudibanisa isinyithi esihambisayo, esifana nobhedu okanye ubhedu, ebengenakudityaniswa ngenye indlela.
● Imisebenzi elula njengoko ukunyanzeliswa kwebrashi kufuna kuphela ukuzisa imathiriyeli yokuzalisa kwindawo yayo yokunyibilika, hayi icwecwe ngokwalo.
● Ukufudumeza okungaphezulu kwendawo, ukuqinisekisa ukuba ezinye iindawo zomsebenzi zihlala zikhuselekile kwaye zigcina amandla azo.
● Iindleko zotyalo-mali eziphantsi njengoko isixhobo esiyimfuneko singabizi kangako.
● Ukuphatheka okukhulu kuluncedo ekusetyenzweni kwesixhobo esikhulu esingenakuhanjiswa lula.
Ngelixa i-resistance brazing ibonelela ngeenzuzo ezininzi, isenokungabi lolona khetho lufanelekileyo kwisicelo ngasinye.Ngenxa yokusetyenziswa kokufudumeza kwendawo, izixhobo zokusebenza ziyakwazi ukuphazamiseka.Izixhobo zokutshisa nazo kufuneka zibe neendawo ezincibilikayo eziphantsi, njengoko i-workpiece yenziwe ngezinto eziqhuba kakhulu.Ukongezelela, inkqubo ayifanelekanga kwiindawo ezinkulu ezidibeneyo;iyasebenza kakhulu kumalungu amancinci.
Ngelixa ingafanelekanga kuyo yonke imeko, ukunyanzeliswa kwe-brazing kuluncedo kwizicelo ezininzi zokuvelisa ngenxa yayo:
● Ukukwazi ukwenza iibhondi ezisisigxina phakathi kwezinto ezisisiseko.
● Iindleko zezoqoqosho kwiindibano ezilula nezintsonkothileyo.
● Amaqondo obushushu asezantsi kunye nokuhanjiswa kobushushu ngakumbi xa kuthelekiswa nokuwelda.
● Ukusebenza ngokudibanisa iintsimbi ezibhityileyo nezingqindilili.
● Ukukwazi ukugcina ukunyamezelana okuqinileyo.