Ukubumba i-Blow yitekhnoloji yokucubungula esetyenziswa ngokubanzi kwimveliso yeemveliso zeplastiki, ikakhulu kukwenziwa kweenxalenye zeplastiki ezingenanto ezifana nezikhongozeli, iinxalenye zeemoto, kunye namatanki amashishini. Umgaqo wayo ongundoqo kukusebenzisa umoya ocinezelweyo ukufaka ipari yeplastiki eshushu nethambileyo kudonga lwangaphakathi lomngundo. Emva kokupholisa, imveliso yenziwe ngendlela efunwayo engenanto. Le ndlela ibonakalisa ukusebenza kakuhle kwemveliso, ukusetyenziswa kwemathiriyeli okugqwesileyo, kunye nokufaneleka kwimveliso enkulu-enkulu.
Ukubumba ukuvuthela kuhlelwe ngokweenkqubo ezintathu: ukubumba ukuvuthela kwe-extrusion, ukubumba ukuvuthela kwenaliti, kunye nokubumba ukuvuthela. I-extrusion blow molding yeyona ndlela ixhaphakileyo. Iplastiki iyanyibilika kwaye ikhutshelwe kwi-tubular parison ngokusebenzisa i-extruder. Umngundo uyavalwa kwaye umoya ocinezelweyo ungeniswe ukuze wenze i-parison kumgodi wokungunda. Isitofu sokubumba isivuthelo siqala ngokubumba i-parison enesiseko, ethi ke idluliselwe kwi-mold yokuvuthela ukugqiba isakhiwo esingenanto. Le ndlela ifanelekile kwiimveliso ezincinci ezifuna ukuchaneka okuphezulu. Ukubumba isivuthelo esolulayo songeza inyathelo lokwelula i-axial phambi kokubumba isivuthelo, ukuphucula ngokubonakalayo iipropathi zoomatshini bemveliso kunye nokungafihli. Ngokuqhelekileyo isetyenziselwa ukuveliswa kweebhotile ze-PET.
Izinto eziphambili eziphembelela umgangatho weendawo ezibunjiweyo zokuvuthela ziquka ukukhethwa kwezinto ezikrwada, ulawulo lwepharamitha yenkqubo, kunye noyilo lokungunda. Izinto eziqhelekileyo zokubumba zibandakanya i-polyethylene (PE), i-polypropylene (PP), kunye ne-polyethylene terephthalate (PET), ezifuna amandla agqwesileyo anyibilike kunye nokuzinza kwe-thermal. Iiparamitha zenkqubo ezifana neqondo lokushisa lokunyibilika, uxinzelelo lokuvuthela, kunye nexesha lokupholisa kufuneka liphuculwe ngokusekwe kwiipropathi zezinto eziphathekayo ukunqanda iingxaki ezinjengobunzima bodonga olungalinganiyo kunye noxinzelelo loxinzelelo. Uyilo lokungunda luchaphazela ngokuthe ngqo ukusebenza ngempumelelo kunye nenkangeleko yemveliso, efuna ukubekwa ngokufanelekileyo kweendawo zokungena umoya kunye neenkqubo zokupholisa.
Inkqubela phambili yezobuchwephesha ikhokelele ekuveleni kweenkqubo ezintsha ezifana-nemixokomezo emininzi,{1}}ukubumba i-extrusion blow, kunye nokubumba okuncinci{2}}kuvuthela, ukwandisa ngakumbi iimeko zesicelo seendawo ezibunjiweyo zokuvuthela. Kwixesha elizayo, kudityaniswe nolawulo oluzenzekelayo kunye nobuchwephesha bokulinganisa idijithali, ukubumba ukuvuthela kuya kuqhubeka nokuphuhlisa kwicala lokukhanya kunye nokuchaneka, ukuhlangabezana neemfuno zokwenziwa okuphezulu{4}}kwesiphelo.
