Ukukhwela i-tube-to-sheet welding kufuna ukungena kweengcambu kunye nokwenza kakuhle umva, ngoko ke umsebenzi unzima kakhulu. Ngokwezikhundla ezahlukeneyo zendawo, i-tube-sheet welding ehleliyo inokwahlulwa ibe ziindidi ezintathu: ukuwelda kwefillet ethe nkqo, ukuwelda kwe-angle yokuphakama okuthe nkqo kunye ne-welding ethe tyaba esisigxina.
Namhlanje ndiza kuthetha nawe malunga ne-welding esisigxina ye-tube sheet yokukhwela.
Jonga umfanekiso ongezantsi we-engile phakathi kwetotshi ye-welding, i-welding wire kunye ne-workpiece.
I-welding ye-Tack ivame ukuthungwa yindlela yokuzaliswa kweengcingo ezingapheliyo. Ubude kunye nenani le-welds ye-tack inqunywe ngokobubanzi bombhobho, ngokubanzi i-2 ukuya ku-4 amacandelo, icandelo ngalinye li-10 ukuya kwi-20mm ubude. Xa uxhasa i-welding, qala ubethe i-arc kwi-tack weld, ujiwule i-arc in situ, kwaye ulinde i-weld ye-tack inyibilike ukwenza ichibi elinyibilikisiweyo elizinzileyo, emva koko ugcwalise ucingo kunye ne-weld ngasekhohlo ukuqinisekisa ukuba umva ulungile. yenziwe.
Ngethuba lenkqubo ye-welding, i-pool etyhidiweyo kufuneka ibonwe nangaliphi na ixesha, kwaye i-angle phakathi kwetotshi ye-welding kunye ne-plate ephantsi kufuneka ilungiswe ngokufanelekileyo ukuqinisekisa ukuba ubukhulu bomngxuma otyhidiweyo buhambelana kwaye bunqande ukutshisa. Xa udibanisa kwezinye ii-welds, ukutyisa ucingo kufuneka kumiswe okanye kuncitshiswe ukunyibilikisa i-welds ye-tack kwaye wenze utshintsho olugudileyo kunye ne-welds yangaphambili yangaphambili.
Xa i-arc icinyiwe, cinezela ukutshintshela, i-current iqala ukubola, kwaye i-wire feeding iyayeka emva kokuba i-arc crater izaliswe. Emva kokuba i-arc icinyiwe, i-pool etyhidiweyo iyaqina. Ngeli xesha, i-welding torch kunye ne-welding wire kufuneka iqhubeke igcinwe kwindawo, kwaye i-torch ye-welding kufuneka isuswe emva kokumiswa kwegesi. Xa udibanisa, betha i-arc kwindawo ye-10-15 mm emva kwe-arc crater, kwaye uhambise i-arc kwi-joint ngesantya esincinci; emva kokuba i-arc crater yokuqala inyibilika ukuze yenze ichibi elinyibilikisiweyo, emva koko iqhele ukuzalisa i-wire welding. Ukuba kukho iqhuqhuva kwintsimbi yokuwelda esezantsi, sebenzisa i-engile grinder ukuyicola ibe mcaba phambi kokuba wenze ukuwelda kwekhava.
Ngexesha lokuzalisa i-welding okanye i-welding cover, uluhlu lwe-swing ye-torch ye-welding inkulu kancinane, ukwenzela ukuba imiphetho ye-groove yombhobho kunye ne-plate iyancibilika ngokupheleleyo. I-weld yokuzalisa akufanele ibe banzi okanye iphakame kakhulu, kwaye umphezulu kufuneka ube flat.
I-welding ye-cover ngamanye amaxesha ifuna i-welds ezimbini, kwaye i-welding ephantsi kufuneka idityaniswe kuqala, ilandelwe yile ingaphezulu. Xa udityaniswa iliso elingezantsi, i-arc ijiwuzela kungqameko olusezantsi lweso elisezantsi, kwaye isiphelo esingaphezulu sedama elityhidiweyo silawulwa kwi-1/2 ukuya kwi-2/3 ye-weld esezantsi, ngelixa umda ongezantsi we-pool etyhidiweyo ulawulwa. ilawulwa kwi-slope 0.5-1.5 mm ngaphantsi komphetho ophantsi womlomo. Xa udibanisa iliso eliphezulu, i-arc kufuneka ijiwuze ijikeleze umda ongaphezulu we-bottom bead, ukwenzela ukuba umgca ongaphezulu we-pool otyhidiweyo ugqithise umgca ongaphezulu we-groove nge-0.5-1.5mm, kunye nomgca ophantsi wenguqu ye-pool etyhidiweyo. ngokutyibilikayo ngentsimbi esezantsi ukuqinisekisa ukuba i-weld seam Umphezulu ugudile kwaye ulungelelene.
Ixesha lokuposa: Mar-01-2023
