Umehluko phakathi kwe-double submerged arc welding(dsaw) kanye nohigh frequency difference(hfw) ubonakala ikakhulukazi ekubukekeni kokushisela, ipayipi lensimbi elicwiliswe kabili le-arc elingaphansi ngokubukeka linomucu omncane wokuhlehlisa, ikakhulukazi ngaphakathi kwensimbi.Umthungo oqondile wepayipi we-arc weld weld uphakeme kunento eyisisekelo ye-weld ecocekile engu-1-3mm.Ngokubukeka ishubhu yensimbi imvamisa ebushelelezi, ukunamathela okungeyona i-oxide.Ku-weld, i-high-frequency straight seam iron pipe weld weld high ukuze ucindezele ukumelana nokugeleza, i-serrate esimangelengele irregular weld, le weld "iyaklwebha" ngaphambi kokuba iphume, ishiya ukususwa kwe-weld eyisicaba.

Ngaphezu kwalokho, i-arc welding enezinhlangothi ezimbili ezingaphansi kwamanzi kanye nomehluko omkhulu wemvamisa ibonakala futhi enqubweni yokukhiqiza, ukusetshenziswa kwezinto zokusetshenziswa ezihlukene, inqubo yokubumba ehlukene, inqubo ye-welding ihlukile kumayunithi ahlukene wokukhiqiza, ukukhiqizwa kobubanzi obuhlukene.Ukushisela i-arc emaceleni engaphansi kwamanzi eqondile inqubo yokukhiqiza insimbi yomthungo kuphela enenqubo ye-JCOE yokubumba inqubo eyinkimbinkimbi, ukwakha ukusebenza kahle okuhlobene nepayipi elishiselwe imvamisa ephansi, ngakho-ke izindleko zokukhiqiza ziphezulu kunepayipi lensimbi elishiselwe imvamisa ephezulu eqondile.Ipayipi lensimbi elishiselwe imvamisa ephezulu eqondile (ERW) inqubo yokukhiqiza ilula, iwuphawu olulodwa.Inqubo yokwakhiwa kwepayipi lensimbi yomthungo enezinhlangothi ezimbili engaphansi kwe-arc iwukwakheka okubandayo kwe-JCOE, izici ezenza insimbi ibe ngu-50mm yakheka kancane kancane, i-J, C, O, E imele isithombe senqubo yokwakheka kwe-arc yensimbi eqondile engaphansi kwamanzi.Imvamisa eqondile yomthungo wepayipi lensimbi yokwakha inqubo yemiqulu yama-multi-pass, cindezela womabili amaphethelo we-strip, futhi ekugcineni athethelele inqubo yokubumba ebandayo, inqubo yokubumba ibonakala ngokungaphazanyiswa, ukushisela okuqhubekayo.Inqubo ye-arc welding engaphansi kwamanzi ibonakala ngokusebenzisa umphumela kagesi wensimbi futhi incibilike ndawonye, ​​njenge-welding yokugcwalisa.Imvamisa eqondile ye-seam steel pipe welding process ibonakala ngokusetshenziswa kwe-high frequency yamanje yesikhumba umphumela wokufudumala okusheshayo uphela ngesikhathi esifushane ngaphansi kwesenzo samandla angaphandle strip kusukela ekuncibilikeni ndawonye.Iyunithi yokukhiqiza ipayipi elivamile lemigqa efanayo yokusebenza kahle komugqa wokukhiqiza ongaphazamiseki, kanye nepayipi lensimbi elicwiliswe yi-arc eliqondile linezinqubo zokukhiqiza ezifika kweziyi-15 eziphelele.Izicaciso zokukhiqiza ipayipi lensimbi yomthungo oqondile imvamisa yokukhiqiza okumbalwa.