| 摘要 |
A method for manufacturing plastic containers (2), the method comprising, for each container: (a) a preform supply step in which a plastic preform (5) containing air is supplied; (b) a thermal conditioning step in which the preform is heated at a preform temperature over the glass temperature of the preform material, (c) an inserting step in which the preform is inserted in a mold having a mold cavity (15); and (d) a forming step in which the preform is expanded to a container (2) having the shape of the mold cavity by means of a forming liquid; characterized in that the method comprises a gaseous product injection step (g) between steps (b) and (d), and during said gaseous product injection step, a gaseous product is injected into the preform containing air, said gaseous product being absorbable by said forming liquid, the injection conditions of the gaseous product being determined such that the injected gaseous product expels said air out of the preform. Application to hydraulic forming machines for high-speed manufacturing plastic bottles (2) containing a beverage (3). |
