Ngokombono wokukhiqizwa kwemikhiqizo yepulasitiki, isikhunta se-extrusion blow sisetshenziselwa ukukhuphuka umoya, ukupholisa, nokubumba i-parison, kuyilapho unikeza umklami ukwakheka nosayizi oyifunayo.Isikhunta se-extrusion blow sinezici ezilandelayo.

(1) Izibunzi zokubumba i-extrusion blow, ngaphandle kwezikhunta ezikhethekile ezifana nemikhiqizo enezindonga ezimbili, zinembobo yesifazane kuphela futhi azikho isikhunta sowesilisa.Uma kuqhathaniswa nezibunjwa ezisetshenziswa kweminye imikhiqizo yepulasitiki, isakhiwo silula kakhulu.

(2) Njengoba isikhunta singenaso isikhunta sowesilisa, singafutha imikhiqizo yepulasitiki enezingxenye ezijulile nezimo eziyinkimbinkimbi.

(3) Isikhunta asinawo umgudu wokuncibilika, futhi isikhunta siyavalwa ngemva kokuba i-parson ingene esikhunjeni.Ukuncibilika kwe-parison kuncike ekwandiseni komoya okucindezelwe ukugcwalisa umgodi.

(4) Uma kuqhathaniswa nesikhunta somjovo, isikhunta sesikhunta se-extrusion sithwala ingcindezi ephansi.Izinto ezingasindi zingasetshenziswa ukwenza isikhunta, futhi umgodi awudingi ukuqina.Izindleko zesikhunta ziphansi.

(5) Ukukhiqizwa okuqhubekayo, ukusebenza kahle kokukhiqiza okuphezulu, kanye nemikhiqizo emide ingakhiqizwa;

(6) Imikhiqizo enezigaba ezahlukene ingakhiqizwa;

(7) Ihlanganiswe nezinye izinto zokusebenza, ingaqedela ukucubungula okuphelele kwezinqubo ezahlukene.Isibonelo, umshini wokudweba kanye nomshini we-calendering uyasebenzisana ukukhiqiza ifilimu;

(8) I-extruder head kanye ne-pelletizer kungabambisana ukwenza i-pellets;

(9) Indawo incane futhi indawo yokukhiqiza ihlanzekile.