METHOD OF MOLDING A CONTAINER

摘要

A method and molding system for hydraulic blow molding of a container from a preform. The method precharges the molding medium within a fill head unit to a precharge pressure. During the injecting of the molding medium into the preform, the method further increases the pressure of the molding medium to a pressure greater than the precharge pressure.

主权项

1. A method of operating a molding system for hydraulic blow molding of a container from a preform, the molding system including a fill head unit, the method comprising the steps of:
providing a molding medium in liquid form and at a system pressure to the fill head unit, injecting the molding medium from the fill head unit into the preform causing the preform to expand into the shape of the container under the influence of the molding medium, the method being characterized by the steps of: precharging the molding medium within the fill head unit to a precharge pressure, the precharging of the molding medium being performed as a first part of a continuous increasing of the pressure of the molding medium from the fill pressure and during the injecting of the molding medium info the preform.