Ipayipi elishiselwe ngomthungo oqondile:ipayipi lensimbi elinomthungo we-weld elihambisana nesiqondiso sobude sepayipi lensimbi. Ngokwenqubo yokubunjwa, ihlukaniswe yaba ipayipi lensimbi lomthungo eliphakeme imvamisa ephezulu (erw pipe) kanye ne-arc engaphansi eshiselwe ipayipi lensimbi lomthungo oqondile (ipayipi le-lsaw).

1. Ukulungiswa kokwakhiwa ngaphambi kokusetshenziswa kwepayipi elihlanganisiwe le-seam eliqondile

Umsele wepayipi wepayipi elishiselwe kufanele umbiwe kahle, ukubekwa kwezitini komthombo wepayipi sekuqediwe, izinhlobo ezahlukene zamapayipi ashiselwe adingekayo zikhona, nezinto ezihlukahlukene ezidingekayo, okuhlanganisa imishini yokushisela kagesi, imishini yokusika, izando zikagesi; ama-grinders, njll., alungiselelwe ngokugcwele, yenza nje Uchungechunge lwamalungiselelo luyadingeka ukuqala ukufakwa.

2. Ukufakwa kwepayipi elihlanganisiwe le-seam eliqondile

Kunezidingo eziqinile zobuchwepheshe zokufakwa nokusetshenziswa kwamapayipi ashiselwe, okumele kwenziwe ngokuhambisana nemvelo esebenzayo kanye nezinqubo zokusebenza zokuqinisekisa ukuphepha kanye nekhwalithi. Enqubweni yokusetshenziswa kakhulu, ipayipi elishiselwe lidinga ukunaka amaphuzu alandelayo:
Ukufakwa kwamapayipi ashiselwe Amapayipi ashiselwe abekwe ngokwepulani lomdwebo, futhi izisekelo zamapayipi zenziwe ngokwazo ngokwendawo yendawo, bese isikwa impahla ngokwepulani nasendaweni, bese i-groove iphansi. nge polisher ngaphambi kokushisela.

3. Izidingo zekhwalithi zokusetshenziswa

Ipayipi legatsha akufanele lishiselwe endaweni yokushisela yepayipi elishiselwe, futhi ngeke kube khona ukushisela ekujikeni.
Iphutha lokukhuphuka kwedivayisi eqondile kufanele libe ngaphansi kuka-3 mm imitha ngayinye, futhi iphutha lokufakwa kwamanzi kufanele libe ngaphansi kuka-1 mm.
Ipayipi elishiselwe lidinga ukuthi i-welding seam iqonde, i-welding seam igcwele, futhi i-welding seam cishe ayinakushiswa nokuqhekeka;

4. Ngesikhathi esifanayo, impilo yesevisi yezinto ezibonakalayo kufanele iphinde icatshangelwe lapho kukhethwa izinto zokufakelwa kwamapayipi ashiselwe, ukuze ugweme inkathazo yokuhlakazeka njalo nokuhlanganisa ngenxa yesikhathi esifushane sokusetshenziswa. Ukukhetha into efanelekile yokufaka amapayipi esitimu kunganciphisa ukulahlekelwa ukushisa, konga izinto zokwakha, futhi kusize ukufakwa nokuhlakazeka.