Umehluko oyinhloko ohlobene nalezi zinto ezimbili ezibalulekile zezimboni inqubo yazo yokukhiqiza ethonya kakhulu izakhiwo zazo zemishini.
1. Amapayipi Ensimbi Angenamthungo (ERW / SMLS)
Amapayipi angenamthungo awanawo umthungo noma ijoyinti lokushisela. Ngokuvamile enziwa ngenqubo yokugoqa eshisayo, noma inqubo yokudweba ebandayo, lapho i-billet yensimbi eqinile eyindilinga ibhobozwa khona phakathi nendawo ekushiseni okuphezulu.
Inzuzo Eyinhloko: Ngenxa yokuthi amapayipi angenamthungo awanawo umthungo ohlanganisiwe, ubuqotho besakhiwo epayipini elingenamthungo buyafana ngobude bepayipi. Lokhu kuqeda amathuba "okwehluleka komthungo," okuyiphuzu elisengozini kakhulu kunoma yiliphi ipayipi elihlanganisiwe.
Ubukhulu Obujwayelekile: Ubukhulu kulo mkhiqizo buvame ukutholakala ngokushoI-API 5L (ipayipi lomugqa),I-ASTM A106, futhiI-ASTM A53(ngokusetshenziswa kwezinga lokushisa eliphezulu).
2. Amapayipi Ensimbi Ahlanganisiwe (ERW, LSAW, SSAW)
Amapayipi ahlanganisiwe enziwa ngepuleti lensimbi eliyisicaba noma umugqa (ikhoyili) owakhiwe waba yindilinga. Amaphethelo abe esehlanganiswa ndawonye ngendlela yokunamathisela enamandla aphezulu. Izinhlobo zifaka phakathi ukushisela kokumelana nogesi (Electric Resistance Welding).I-ERW), Ukushisela i-Arc Engaphansi Komphetho Ohlala Isikhathi Eside (I-LSAW), Ukushisela i-Arc Ecmerged Ehlanganisiwe Nge-Spiral (I-SSAW).
Inzuzo Eyinhloko: Ukukhiqizwa kobuchwepheshe obuphezulu kuthuthukise kakhulu ukuthembeka komthungo wokushisela. Ipayipi elishiselwe liyatholakala nangosayizi omkhulu kunomthungo, okuvumela ukwakheka okukhulu kanye nokuguquguquka kokusetshenziswa.
Ubukhulu Obujwayelekile: Ngokuhambisana ne-ASTM A53, i-API 5L kanye nezinye izici eziningi zesakhiwo sesifunda.