Ukucutshungulwa okubandayo kwamapayipi ensimbi (njengamashubhu angenamthungo) kuhlanganisa izindlela ezinjengokugoqeka okubandayo, ukudweba okubandayo, ukunciphisa ukushuba okubandayo nokuphotha, okuyizindlela eziyinhloko zokukhiqiza amapayipi anezindonga ezincanyana nanamandla aphezulu. Phakathi kwazo, ukugoqa okubandayo kanye nokudweba okubandayo kuvame ukusetshenziswa izindlela zokukhiqiza eziphezulu zokucubungula okubandayo kwamapayipi ensimbi.

Uma kuqhathaniswa nokuginqika okushisayo, ukusebenza okubandayo kunezinzuzo ezilandelayo:
Ingakhiqiza amapayipi anobubanzi obukhulu futhi anezindonga ezincane; ukunemba okuphezulu kwejometri; ukuphakama okuphezulu; kuyasiza ekulungiseni okusanhlamvu, futhi ngesistimu yokwelapha ukushisa okuhambisanayo, izakhiwo eziphelele zemishini zingatholakala.

Ingakhiqiza izici ezihlukahlukene ezimise okwesipesheli nesigaba esiguquguqukayo nezinye izinto ezinobubanzi obuncane bokushisa bokucubungula okushisayo, ukuqina okuphansi kwezinga lokushisa eliphezulu kanye nepulasitiki enhle yegumbi lokushisa. Inzuzo evelele yokugoqa okubandayo ukuthi inamandla aqinile okunciphisa udonga, futhi ingathuthukisa kakhulu ukusebenza, ukunemba kwe-dimensional kanye nekhwalithi ephezulu yezinto ezingenayo.

Izinga lokuncishiswa kwendawo yokudweba okubandayo liphansi kunelo lokugoqa okubandayo, kodwa okokusebenza kulula, izindleko zokusebenzisa amathuluzi zincane, ukukhiqizwa kuyavumelana nezimo, futhi ububanzi bobumo bomkhiqizo kanye nokucaciswa nakho kukhudlwana. Ngakho-ke, kuyadingeka ukuhlanganisa izindlela ezibandayo zokugoqa kanye nezindlela zokudweba ezibandayo ngokunengqondo esizeni. Eminyakeni yamuva nje, ukuncishiswa kwengcindezi ebandayo, ukucutshungulwa okubandayo kwamapayipi ashiselwe, kanye nobuchwepheshe bokudweba amapayipi obude besikhathi eside kungakhuphula ukuphuma kweyunithi. Nweba ububanzi bezinhlobonhlobo kanye nokucaciswa, uthuthukise ikhwalithi yama-welds, futhi unikeze izinto ezifanelekile zamapayipi zokugoqa okubandayo kanye nokudweba okubandayo. Ngaphezu kwalokho, ukucubungula okufudumele kuthole ukunakwa okukhulu eminyakeni yamuva, ngokuvamile ukushisa kokungeniswa ku-200 ℃ ~ 400 ℃, ukuthuthukisa i-plasticity ye-tube billet. Ubude obukhulu bokugoqa okufudumele cishe izikhathi ezi-2 kuya kwezi-3 kunezokuginqika okubandayo; Kukhuphuke ngo-30%, okwenza kube nokwenzeka ukuthi ezinye izinsimbi ezinepulasitiki ephansi namandla aphezulu ziqedwe.

Nakuba ububanzi bokucaciswa, ukunemba kwe-dimensional, ikhwalithi ephezulu kanye ne-microstructure yamashubhu asebenza ngokubandayo aphakeme kunalawo amashubhu agingqiwe ashisayo, kunezinkinga ezine ekukhiqizeni kwawo: izikhathi zomjikelezo ophezulu, umjikelezo omude wokukhiqiza, ukusetshenziswa kwensimbi enkulu kanye nokwelashwa okuphakathi okuyinkimbinkimbi. inqubo.

Ngenxa yezinto ezihlukahlukene, izimo zobuchwepheshe kanye nokucaciswa kwamapayipi ensimbi ahlukahlukene, inqubo yokukhiqiza kanye
Uhlelo lwenqubo nalo luhlukile, kodwa ngokuvamile luqukethe izinqubo ezintathu ezibalulekile ezilandelayo:

I-1) Ukwelashwa kwangaphambili kokusebenza okubandayo, kufaka phakathi amalungiselelo ezici ezintathu: ubukhulu, ukuma, isakhiwo kanye nesimo esiphezulu;
2) Ukusebenza okubandayo, okuhlanganisa ukudweba okubandayo, ukugoqa okubandayo nokuphotha;
3) Ukuqedwa kwemikhiqizo eqediwe, okuhlanganisa ukwelashwa kokushisa, ukusika, ukuqondisa nokuhlolwa kwemikhiqizo eqediwe.