Since the polyolefin modified resin is resistant to necking, much larger parisons
, and hence parts, can be molded from this resin.
Static can have a serious effect on parison
alignment, with a particularly high concentration of static being able to cause the parisons
on the blow moulding lines to swing out of place.
He continued: "High levels of static can have a serious effect on parison
alignment and therefore container quality, so it became a priority to find a solution that would ensure all traces of static would be eliminated.
The longer parisons
change the positions of important program points and the result can be containers that are out of specification.
defines the cone angles and the body of the balloon.
4 was identified to be too simplistic, due to the complex shape of the extruded parisons
created by VWDS/PWDS die gap manipulations.
Features: Continuous operation to 8 rpm, single or dual parisons
, 100-point parison
programming, 7-layer capability, aseptic capability.
To this end, parisons
were extruded for incremental times up to the total extrusion time.
Trends point to more construction uses for large plastic panels and to non-round parisons
, enabling even larger panels.
Designed to dramatically reduce non-viable particulate generation in the parison
extrusion zone, the KleenKut is a new patented method for cutting the molten parisons
during the blow/fill/seal process.
wall uniformity has been good and parisons
up to thirty-six inches in length have been extruded without excessive sag.
The LGF/HDPE parisons
did sag as a solid-body (equal speed at different axial locations) governed by the orientation caused by the flow in the die.