Iinqubo yokubhoboza ukugoqaiwona osetshenziswa kakhulu ekukhiqizeni amapayipi ensimbi angenamthungo, futhi yasungulwa abazalwane baseJalimane bakwaMannesmann ngo-1883. Umshini wokubhoboza ogoqayo uhlanganisa umshini wokubhoboza onama-roll-rolling amabili kanye nomshini wokubhoboza onama-roll-rolling amathathu. Ukukhubazeka kwekhwalithi ye-capillary ekhiqizwa ukugoqeka nokubhoboza ishubhu elingenalutho ikakhulukazi lihlanganisa ukugoqeka kwangaphakathi, ukugoqeka kwangaphandle, ukujiya kodonga okungalingani kanye nemihuzuko engaphezulu ye-capillary.

I-Capillary infolding: I-Capillary yisici okungenzeka kakhulu senzeke ekubhobozeni ukugoqa, futhi ihlobene eduze nokusebenza kokubhoboza kweshubhu elingenalutho, ukulungiswa kwemingcele yenqubo yokubhoboza yomshini wokubhoboza, kanye nekhwalithi yokubhoboza. ipulaki. Izinto ezithinta i-capillary infolding: enye ukunciphisa (izinga) kanye nezikhathi zokuminyanisa ngaphambi kwepulaki; enye yisimo sembobo; okwesithathu izinga eliphezulu lepulaki.
Ukugobela ngaphandle kweshubhu le-capillary: Iningi lokugobela ngaphandle kweshubhu le-capillary kubangelwa isici esingaphezulu seshubhu elingenalutho, okungenye inkinga yekhwalithi engaphezulu ebangelwa kalula lapho ishubhu elingenalutho ligoqwa futhi libhobozwa. Izici ezithinta ukugoba kwe-capillary ngaphandle: A. i-tube plasticity engenalutho kanye nokubola kwe-perforation; B. ishubhu elingenalutho ebusweni amaphutha; C. ikhwalithi yethuluzi lokubhoboza kanye nesimo sokudlula.

Ubukhulu bodonga lwe-capillary olungalingani: Kukhona ukushuba okungalingani kodonga oluguquguqukayo nokuqina kodonga lwe-longitudinal olungalingani. Uma kugingqika nokubhoboza, ukujiya kodonga oluphambene okungalingani kungenzeka kakhulu. Izici eziyinhloko ezithinta ukushuba kodonga oluguquguqukayo olungalingani lweshubhu le-capillary yilezi: izinga lokushisa lokufudumala kweshubhu elingenalutho, ukugxilwa kwendawo ekugcineni kweshubhu, ukulungiswa kwephethini yembobo yomshini wokubhoboza kanye nokuma kwethuluzi, njll.

Ukuklwebheka kwe-capillary surface: Nakuba izimfuneko zekhwalithi yangaphezulu yamapayipi e-capillary anembobo aziqinile njengalezo zezigayo eziginqikayo zamapayipi nezigayo zokulinganisa zekhwalithi yendawo yamapayipi ensimbi, ukuklwebheka okuqinile kwendawo yamapayipi e-capillary kuzophinde kuthinte ikhwalithi yangaphezulu yamapayipi ensimbi. Izici ezithinta ukuhuzuka kwendawo yeshubhu le-capillary: ikakhulukazi ngenxa yokuthi ingaphezulu lethuluzi lokubhoboza noma itafula lokuphuma lomshini wokubhoboza ligugile kakhulu, i-rough noma ithebula le-roller alizungezi. Ukuze kuvikelwe i-capillary surface ukuthi ingaklwebheki ngenxa yokukhubazeka okungaphezulu kwethuluzi lokubhoboza, ukuhlolwa nokugaya ithuluzi lokubhoboza (isilinda somhlahlandlela kanye nomkhombe) kufanele kuqiniswe.