Ubukhulu bodonga lwepayipi elingu-Diameter LSAW elinempahla yalo enkulu, enhle, ukuzinza kwenqubo, libe yisinqumo sokuqala sephrojekthi enkulu yamapayipi kawoyela asekhaya nawangaphandle kanye negesi.Emthungoni omkhulu oqondile ongaphansi kwe-arc oshiselwe ipayipi elishiselwe amalunga, indawo ethintekile ye-weld kanye nokushisa kungenzeka ukuthi ikhiqize ukungapheleli okuhlukahlukene kwe-undercut eshiselwe, i-porosity, i-slag, ukuntuleka kokuhlangana, ukuntuleka kokungena, i-weld, ukushisa imifantu yokushisela uhlobo oluyinhloko lwezinkinga zokushisela, futhi ngokuvamile imvelaphi yezingozi zekhwalithi zamapayipi ashiselwe umthungo oqondile kakhulu we-arc.
Izinyathelo zokulawula ikhwalithi: 1, ngaphambi kokulawulwa kwekhwalithi yokushisela 1) Okokuqala, yenza ikhwalithi enhle yezinto zokusetshenziswa, ngemuva kokuhlolwa okudlulayo ngaphambi kokungeniswa ngokusemthethweni endaweni yokwakha, futhi umise ngokuqinile ukusetshenziswa kwensimbi esezingeni eliphansi 2) elandelwa yi.ukuphathwa kwezinto zokushisela.Hlola ukuthi izinto zokushisela zemikhiqizo efanelekayo, isitoreji kanye nesistimu yokubhaka ukuthi isebenze yini, noma ikhiphe indawo yokushisela ihlanzekile futhi ayinayo ukugqwala, ukunamathela kwe-electrode kuqinile, kunomkhuhlane noma ngaphandle kwawo.3) Nakulokhu, ukuphathwa kwe-weld zone ehlanzekile.Ukuhlanza indawo ye-weld ye-QA, ngaphandle kwamanzi, uwoyela, ukugqwala nokungcola ifilimu ye-oxide, okuwukuvimbela ukukhubazeka kwangaphandle kwe-weld kukhiqize indima ebalulekile.4) Khetha indlela efanele yokufaka i-welding kufanele isetshenziswe kuqala ukuhlolwa kwe-welding, emva kwezimiso zokushisela.2, ukulawulwa kwekhwalithi ye-welding 1) ngokuya ngenqubo yokushisela imininingwane yocingo kanye nokubuyekezwa kwe-flux kulungile, ukuvimbela ukusetshenziswa kabi kwentambo yokushisela kanye ne-flux ebangelwa ikhwalithi yengozi.2) ukuze uqondise imvelo Welding, thatha izinyathelo ezifanele ngemva Welding lapho Welding imvelo ingeyinhle (izinga lokushisa elingaphansi 0 ℃, umswakama isihlobo omkhulu kuno-90%) kufanele kube.3) ngaphambi kobukhulu begroove yokushisela yokuhlola yokuqala elindelekile, okuhlanganisa isikhala, umphetho ocashile, nokuthi ingabe i-engeli nembobo engafanele iyahlangabezana yini nezimfuneko zobuchwepheshe.4) enqubweni ye-arc welding engaphansi kwamanzi ngaphakathi nangaphandle kwe-welding yamanje ekhethiwe, i-welding voltage, isivinini sokushisela neminye imingcele ilungile.5) ukugadwa kwabasebenzi ku-arc welding engaphansi kwamanzi ngaphakathi nangaphandle ipayipi lensimbi elishiselwe inzuzo egcwele yobude be-arc plate yokuphela, ukuqinisa ukusebenza kahle kwe-arc yokushisela lapho amapuleti angaphakathi nangaphandle, okusiza ukuthuthukisa ikhwalithi yokushisela ipayipi iphela. .6) ukugadwa kwabasebenzi ku-welding slag welding noma ngabe bahlanzwa kuqala, noma ngabe uke wacubungula i-joint groove ukuthi kukhona uwoyela, ukugqwala, i-slag, amanzi, upende nokunye ukungcola.