Eyona nkqubo yemveliso yeumbhobho wentsimbi ophezulu woxinzelelo: ukufudumeza i-billet, ityhubhu ene-perforated, ukwandiswa kombhobho.

Umbhobho wentsimbi woxinzelelo oluphezulu, ubungakanani bombhobho, umbhobho wokuphungula, ukupholisa kunye nokugqiba intsimbi okanye kunokuthiwa itshiswe yintsimbi enemingxuma embryo eshushu yaqengqeleka yokuchola intloko yokutshiza ebandayo etsalwa yikhabhoni etshisa iimveliso zokupakisha zenza umbhobho wentsimbi ongenamthungo indlela equka: ukusetwa kuya ube nesitendi sokusila sokuqengqeleka, kuqwalaselo ngalunye olwahlukeneyo lwendlela yokuqengqeleka elandelelanayo yesixhobo sokusila se-mandrel, kwindawo enjalo yokuvelisa umgca wokuqengqeleka kombhobho wentsimbi ongenamthungo Emva kwezithuba zombini zesiphelo senkqubo ye-axis nganye, ubukhulu bodonga bulinganiswe kwi umbhobho circumferential ulwalathiso emva kokuqengqeleka kwi-multi-point, ngokusekwe kwisiphumo umlinganiselo, ubuncinane ukulawula mandrel lokusila lokusila wokugqibela uqengqa isikhululo isiseko , ngoko ukungalingani eludongeni ubukhulu ukuya ubuncinane.

Ukugcinwa kombhobho wentsimbi ephezulu yoxinzelelo kulula kakhulu, nje ukuba ityhubhu yangaphakathi kunye neentsalela ze-arhente yokucoca ezifana nomjikelo wokuhlamba i-methanol emva naphambili rhoqo, de kube kugqitywe emva kokucoca, emva koko ucoce i-arhente yokucoca kanye, ityhubhu. eyona nto ingcono ukushiya ezinye iiarhente zokucoca, ukuthintela umcimbi ungacoceki, kwaye uvelise ityhubhu yeplagi.Xa umbhobho woxinzelelo oluphezulu unqatshelwe ngokungqongqo ipakethe esongiweyo okanye i-90 degrees okanye ukuxhoma ngokusondeleyo.