ERW (Electric Resistance Welding) karfe bututuAna kiran bututun ERW ko bututun welded HF, yana da fa'idodi da yawa kamar haka:

1) high samar yadda ya dace, low cost, da farashin ne game da UOE madaidaiciya kabu submerged baka welded karfe, 85%;

2) high girma daidaito, da roundness (Roundenss) ne m zuwa karkace welded bututu, da takwaransa na iya ajiye da yawa hours a cikin filin;

3) m surface, da kyau bayyanar, wanda shi ne m zuwa ciki da kuma waje shafi mai rufi.A baya, rashin amincin magudanar bututun ERW, bututun an yi ta samun hatsarori masu yawa, don haka ya takaita amfani da bututun ERW.Kwanan nan, rukunin Zhejiang Jinzhou ya ba da jari mai yawa, ta hanyar haɗin gwiwa na masu bincike da masu kera bututu, wannan yanayin ya canza sosai na ingancin walda na bututun ƙarfe na ERW za a iya kwatanta shi da kwatankwacin LSAW.

Tsarin bututun ERW don ɗaukar matakai masu zuwa:

1) sarrafa shigarwar zafi a cikin tsari, abubuwa da yawa suna shafar shigarwar zafi, na farko shine kusurwar haɗuwa (Angle Convergency).Sakamakon ya nuna cewa, a cikin yanayin wasu dalilai akai-akai, kusurwar haɗuwa ya yi girma don haifar da walda mai sanyi, kusurwar haɗuwa ya yi ƙanƙara zai haifar da ƙonewa.Wani abu da ke shafar bututun shigarwar thermal a cikin saurin gaba na layin kafa.Sakamakon ya nuna cewa idan aka kwatanta da sauran dalilai akai-akai, saurin yana da sauri yana iya haifar da walda mai sanyi, da jinkirin, yana iya haifar da ƙonewa cikin sauƙi.

2) inganta layin atomatik gano bututu factory a Jinzhou, domin tabbatar da ingancin ERW bututu, ƙarin Multi-tashar flaw gano a bututu fasahar.Cire tsiri a ɓangarorin biyu na gwajin ultrasonic, duban halin yanzu bayan kammala walda.Bugu da kari, adadin dubawa na gani, da kuma yin samfuri don gwajin lallashi da sauran gwajin kaddarorin inji.