Ukugibela i-tube-to-sheet welding kudinga ukungena kwezimpande kanye nokwakheka okuhle emuva, ngakho-ke ukusebenza kunzima kakhulu.Ngokwezikhundla ezihlukene zendawo, i-tube-sheet welding ehlezi ingahlukaniswa ngezinhlobo ezintathu: i-fillet fillet welding eqondile, ukushisela i-angle ephakanyisiwe eqondile kanye ne-horizontal fixed fillet welding.
Namuhla ngizokhuluma nawe mayelana nokushisela okuqondile okuqondile kweshidi leshubhu lokugibela.
Bheka umfanekiso ongezansi ukuze uthole i-engeli ephakathi kwethoshi lokushisela, intambo yokushisela kanye nocezu lokusebenza.
I-tack welding ivamise ukushiselwa ngendlela yokugcwalisa izintambo ngezikhathi ezithile.Ubude nenani lama-weld we-tack kunqunywa ngokuhambisana nobubanzi bepayipi, ngokuvamile izigaba ezi-2 kuya kwezi-4, isigaba ngasinye singu-10 kuya ku-20mm ubude.Uma usekela i-welding, qala ushaye i-arc ku-tack weld, swayikisa i-arc in situ, bese ulinda ukuthi i-tack weld incibilike ukuze yakhe ichibi elincibilikisiwe elizinzile, bese ugcwalisa ucingo bese ushisela kwesokunxele ukuze uqinisekise ukuthi ingemuva liphilile. kwakheka.
Phakathi nenqubo yokushisela, i-pool encibilikisiwe kufanele ibhekwe nganoma yisiphi isikhathi, futhi i-engeli phakathi kwethoshi lokushisela kanye nepuleti eliphansi kufanele lilungiswe ngokufanele ukuze kuqinisekiswe ukuthi ubukhulu bomgodi oncibilikisiwe buhambisana futhi buvimbela ukushiswa.Uma ushisela kwamanye ama-tack weld, ukuphakelwa kwezintambo kufanele kumiswe noma kuncishiswe ukuze kuncibilike ama-weld we-tack futhi wenze uguquko olubushelelezi ngokushisela phansi kwangaphambilini.
Uma i-arc icishiwe, cindezela inkinobho, i-current iqala ukubola, futhi ukuphakelwa kwezintambo kuyama ngemva kokugcwalisa i-arc crater.Ngemva kokucinywa kwe-arc, ichibi elincibilikisiwe liyaqina.Ngalesi sikhathi, i-welding torch kanye ne-welding wire kufanele iqhubeke igcinwe endaweni, futhi ithoshi lokushisela kufanele lisuswe ngemva kokumiswa kwegesi.Uma uxhuma, shaya i-arc endaweni engu-10-15 mm ngemuva kwe-arc crater, bese uhambisa i-arc ekuhlanganyeleni ngesivinini esisheshayo kancane;ngemva kokuba i-arc crater yasekuqaleni incibilika ukuze yakhe ichibi elincibilikisiwe, bese kuvamise ukugcwalisa i-wire welding.Uma kuneqhubu lasendaweni kubuhlalu obushiselayo obungezansi, sebenzisa i-engeli yokugaya ukuze uyigaye isicaba ngaphambi kokushisela ikhava.
Ngesikhathi sokugcwalisa i-welding noma ikhava ye-welding, ububanzi be-swing ye-torch ye-welding bukhulu kancane, ukuze imiphetho ye-groove yepayipi kanye nepuleti incibilike ngokugcwele.I-weld yokugcwalisa akufanele ibe banzi kakhulu noma iphakame kakhulu, futhi ubuso kufanele bube flat.
Ukushisela ikhava ngezinye izikhathi kudinga ukushisela okubili, kanti ephansi kufanele ishiselwe kuqala, kulandele engaphezulu.Lapho ushisela ubuhlalu obungezansi, i-arc inyakaza izungeza unqenqema olungezansi lobuhlalu obuphansi, futhi unqenqema olungaphezulu lwechibi elincibilikisiwe lilawulwa ku-1/2 kuya ku-2/3 we-weld ephansi, kuyilapho unqenqema oluphansi lwechibi elincibilikisiwe kulawulwa emthambekeni ongu-0.5-1.5 mm ngaphansi konqenqema olungezansi lomlomo.Lapho ushisela ubuhlalu obungaphezulu, i-arc kufanele ijike izungeze unqenqema olungaphezulu lobuhlalu obungaphansi, ukuze unqenqema olungaphezulu lwechibi elincibilikisiwe ludlule unqenqema olungaphezulu lwesisele ngo-0.5-1.5mm, bese kuthi unqenqema olungaphansi lwechibi elincibilikisiwe luguquke. kahle ngobuhlalu obungezansi ukuqinisekisa ukuthi i-weld seam Ingaphezulu libushelelezi futhi lilingana.
Isikhathi sokuthumela: Mar-01-2023
