Lapho welding amapayipi ensimbi, udinga ukunaka lezi zindaba ezilandelayo:

Okokuqala, hlanza ubuso bepayipi lensimbi. Ngaphambi kokushisela, qiniseka ukuthi ingaphezulu lepayipi lensimbi lihlanzekile futhi alinawo amafutha, upende, amanzi, ukugqwala nokunye ukungcola. Lokhu kungcola kungase kuthinte ukuqhubeka kahle kokushisela futhi kungase kubangele izinkinga zokuphepha. Amathuluzi afana namasondo okugaya namabhulashi ocingo angasetshenziselwa ukuhlanza.

Okwesibili, ukulungiswa kwe-bevel. Ngokusho kobukhulu bodonga lwepayipi lensimbi, lungisa ukuma nosayizi we-welding groove. Uma ubukhulu bodonga bukhulu, i-groove ingaba nkulu kancane; uma ubukhulu bodonga buncane, i-groove ingaba yincane. Ngesikhathi esifanayo, ubushelelezi kanye nokuqina kwe-groove kufanele kuqinisekiswe ukushisela okungcono.

Okwesithathu, khetha indlela efanele yokushisela. Khetha indlela yokushisela efanele ngokuya ngezinto ezibonakalayo, imininingwane, kanye nezidingo zokushisela zepayipi lensimbi. Isibonelo, kumapuleti amancane noma amapayipi ensimbi ephansi-carbon, i-gas shielded welding noma i-argon arc welding ingasetshenziswa; amapuleti awugqinsi noma izakhiwo zensimbi, i-arc welding engaphansi kwamanzi noma i-arc welding ingasetshenziswa.

Okwesine, lawula imingcele yokushisela. Imingcele ye-Welding ihlanganisa i-welding current, i-voltage, isivinini se-welding, njll. Le mingcele kufanele ilungiswe ngokusho kwezinto kanye nobukhulu bepayipi lensimbi ukuze kuqinisekiswe izinga lokushisela nokusebenza kahle.

Okwesihlanu, naka ukwelashwa kwangaphambi kokushisa kanye ne-post-welding. Kwezinye i-high-carbon steel noma i-alloy steel, ukwelashwa kwangaphambi kokushisa kuyadingeka ngaphambi kokushisela ukuze kuncishiswe ukucindezeleka kokushisela nokuvimbela ukuvela kwemifantu. Ukwelashwa kwe-post-weld kuhlanganisa ukupholisa i-weld, ukususwa kwe-slag yokushisela, njll.

Okokugcina, landela izinqubo zokusebenza eziphephile. Phakathi nenqubo yokushisela, kufanele kuqashelwe izinqubo zokusebenza eziphephile, njengokugqoka izingubo zokuzivikela, amagilavu, namamaski. Ngesikhathi esifanayo, imishini yokushisela kufanele ihlolwe futhi igcinwe njalo ukuze kuqinisekiswe ukusebenza kwayo okuvamile.