Aindololwane engenamthungowuhlobo lwepayipi elisetshenziselwa ukuphendulela ipayipi. Phakathi kwazo zonke izinsimbi zamapayipi ezisetshenziswa ohlelweni lwamapayipi, ingxenye inkulu, cishe ngama-80%. Ngokuvamile, izinqubo ezahlukene zokwakha zikhethwa ngezindololwane zobukhulu obuhlukahlukene bezindonga. Okwamanje. Izinqubo zokwenza indololwane ezingenamthungo ezivame ukusetshenziswa ezitshalweni zokukhiqiza zifaka i-hot push, stamping, extrusion, njll.

Impahla eluhlaza yokufakwa kwepayipi lendololwane engenamthungo iyipayipi eliyindilinga elingenalutho, futhi umbungu wepayipi oyindilinga usikwa ungenalutho ube nobude obungaba imitha elilodwa ngomshini wokusika, bese uthunyelwa esithandweni ukuze ushiswe ngebhande lokuthutha. I-billet ifakwa esithandweni futhi ishiselwe ekushiseni okungaba ngu-1200 degrees Celsius. Uphethiloli yi-hydrogen noma i-acetylene. Ukulawulwa kwezinga lokushisa kwesithando kuyinkinga eyinhloko. Ngemuva kokukhishwa kwe-billet eyindilinga, ifakwa ngaphansi komshini wokubhoboza ngembobo. Umshini wokubhoboza ovame kakhulu umshini wokubhoboza we-conical roller. Lo mshini we-perforating unekhono eliphezulu lokukhiqiza, ikhwalithi yomkhiqizo omuhle, ububanzi obukhulu bokubhoboza futhi ungagqoka ukufakwa okuhlukahlukene kwamapayipi. Ngemuva kokubhoboza, i-billet eyindilinga igoqwe ngokulandelana, igoqwe noma ikhishwe ngama-roll amathathu. Ngemuva kwe-extrusion, i-tube kufanele ilinganiswe. Umshini wokulinganisa uzungeziswa ngesivinini esiphezulu ngomshini wokubhoboza owukhonkolo ube yinkambo yensimbi ukuze wakhe ipayipi.

Ukwakheka kwendololwane okungenamthungoindlela
1. Indlela yokufaka: Ukuphela noma ingxenye yepayipi ishaywa umshini wokuthungatha ukunciphisa ububanzi obungaphandle. Umshini wokubumba ovamile unohlobo olujikelezayo, uhlobo lwesixhumanisi kanye nohlobo lwe-roller.
2. Indlela yokugoqa: Ngokuvamile, i-mandrel ayisetshenziswa, futhi ifanele unqenqema lwangaphakathi lweshubhu eliwugqinsi. I-core ifakwe ku-tube, futhi i-circumference yangaphandle icindezelwa yi-roller yokucubungula onqenqemeni oluyindilinga.
3. Indlela yokunyathela: Ukuphela kwepayipi kunwetshwa kusayizi odingekayo kanye nokuma ngomgogodla ocijile emshinini wokunyathelisa.
4. Indlela yokubumba yokugoba: Kunezindlela ezintathu ezivame ukusetshenziswa kakhulu, enye indlela ibizwa ngokuthi indlela yokwelula, enye indlela ibizwa ngokuthi indlela yokucindezela, indlela yesithathu yindlela ye-roller, kukhona ama-roller angu-3-4, ama-roller amabili angashintshi, eyodwa yokulungisa. i-roller, ukulungisa Ngegebe le-roll engaguquki, ipayipi eliqediwe ligobile.
5. Indlela ye-inflating: enye iwukubeka irabha epayipini, futhi ingxenye engaphezulu icindezelwe yi-punch ukwenza ithubhu libe yi-convexly; enye indlela iwukwenza i-hydraulic bulge, ugcwalise phakathi kweshubhu ngoketshezi, bese umfutho we-liquid udonsa ishubhu libe elidingekayo Iningi lomumo kanye nokukhiqizwa kwezivuno kusetshenziswa ngale ndlela.