Umbhobho wentsimbi ye-arc ephantsi kwamanzi uye waba ngumbhobho wentsimbi yeeprojekthi ezinkulu zokuthutha ioli kunye negesi ekhaya nakwamanye amazwe ngenxa yobukhulu bayo obukhulu bodonga, umgangatho omhle wezinto eziphathekayo kunye nobuchwepheshe obuzinzileyo bokucwangcisa. Kwimibhobho edityanisiweyo yentsimbi ye-arc ebanzi, i-weld seam kunye nendawo echaphazeleke bubushushu ziindawo ezithanda ukuba neziphene ezahlukeneyo, ngelixa i-welding undercuts, iipores, i-slag inclusions, ukudityaniswa okungonelanga, ukungena okungaphelelanga, i-weld bumps, ukutshisa. , kunye ne-welding cracks Yeyona ndlela iphambili ye-welding defect, kwaye idla ngokuba yimvelaphi yeengozi ze-arc steel pipe. Amanyathelo olawulo ngolu hlobo lulandelayo:

1. Ukulawula phambi kwe-welding:

I-1) Izinto eziluhlaza kufuneka zihlolwe kuqala, kwaye kuphela emva kokudlula ukuhlolwa zingangena kwindawo yokwakha ngokusemthethweni, kwaye zisebenzise ngokuqinileyo insimbi engavumelekanga.
2) Okwesibini kukulawulwa kwezinto ze-welding. Khangela ukuba izinto zokuthungatha ziyimveliso efanelekayo, ingaba inkqubo yokugcina kunye neyokubhaka iphunyeziwe, ingaba ubuso bezinto ezisasaziweyo ze-welding zicocekile kwaye zingenamhlwa, nokuba ukugquma kwentonga ye-welding kuhambelana nokuba kukho ukubola.
3) Okwesithathu kulawulo olucocekileyo lwendawo ye-welding. Hlola ukucoceka kwendawo ye-welding, kwaye akufanele kubekho ukungcola okunjengamanzi, ioli, i-rust kunye nefilimu ye-oxide, edlala indima ebalulekileyo ekukhuseleni iziphene zangaphandle kwi-weld.
4) Ukukhetha indlela efanelekileyo yokudibanisa, umgaqo we-welding yokuqala kunye ne-welding elandelayo kufuneka iphunyezwe.

2. Ukulawula ngexesha le-welding:

I-1) Khangela ukuba iinkcukacha ze-welding wire kunye ne-flux zichanekile ngokwemigaqo yenkqubo ye-welding ukukhusela ukusetyenziswa kakubi kwe-welding wire kunye ne-flux kwaye kubangele izingozi ze-welding.
2) Lawula indawo ye-welding. Xa indawo ye-welding ingekho kakuhle (iqondo lobushushu lingaphantsi kwe-0℃, ukufuma okuhambelanayo kukhulu kune-90%), amanyathelo ahambelanayo kufuneka athathwe ngaphambi kokutshisa.
I-3) Ngaphambi kwe-welding yangaphambili, khangela imilinganiselo ye-groove, kubandakanywa izikhewu, imida enqabileyo, i-angles kunye nokungahambi kakuhle, nokuba bahlangabezana neemfuno zenkqubo.
4) Ingaba i-welding current, i-welding voltage, isantya se-welding kunye nezinye iiparameters zenkqubo ezikhethiweyo kwinkqubo ye-arc ye-arc ye-welding ezenzekelayo ichanekile.
I-5) Ukulawula abasebenzi be-welding ukuba basebenzise ngokupheleleyo ubude be-pilot arc plate ekupheleni kombhobho wentsimbi ngexesha le-welding ye-arc ezenzekelayo, kunye nokuqinisa ukusetyenziswa kwe-pilot arc plate ngexesha le-welding yangaphakathi nangaphandle, enceda ukuphucula ukuwelda kombhobho ekupheleni.
I-6) Lawula ukuba ngaba abasebenzi be-welding baqale bahlambulule i-slag ngexesha lokulungiswa kwe-welding, nokuba ngaba ii-joints ziye zacutshungulwa, nokuba kukho ioli, i-rust, i-slag, amanzi, ipeyinti kunye nolunye ukungcola kwi-groove.