parison


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parison

[′par·ə·sən]
(engineering)
A hollow plastic tube from which a bottle or other hollow object is blow-molded.
References in periodicals archive ?
During the annular extrusion, the parison swells and sags as it exits the die.
Tender notice number : CIPET_HO/PUR./TEN.02/2017-18/AUTOMATIC MICROPROCESSOR CONTROLLED EXTRUSION BLOW MOULDING WITH PARISON PROGRAMMING - 1 LITRE
"Depending on the processed material, speed and ambient conditions, high static charges can build up on the extruded parisons during the blow moulding process," explained Massimo Davoli, Global Product Manager for Shuttle Blow Moulding at Uniloy.
The constant spread of ions ensured total neutralisation from the parison extrusion head to the top of the mould tool, and therefore avoiding further oscillation and cases of failed delivery.
In more complicated designs, it may not be possible to simplify using convoluted sections; the flexibility of convoluted sections is not desired for functional reasons, or tilting the duct axis relative to the parison axis cannot achieve a proper molding.
The forming of glass containers by the "press and blow" process can be divided into five main steps: gob formation at the feeder, transfer and loading of the gob into the blank, pressing of the parison, inversion of the parison into the blow mold, and the reheat and final blowing of the container.
Furthermore, a method that focuses on visual likeness without considering context, ignores how "what looks like the same object can be structured into two different cultures in such a completely different way that the surface likeness is insignificant in com parison with the deeper symbolic differences" (25).
A new parison control package for blow molding machines, according to its manufacturer, Siemens Energy and Automation Inc.
Even modified PC resins have such a high melt viscosity it's not possible to form a parison suitable for blow molding.
Tender notice number : CIPET_HO/Pur./TEN.05/2015-16/AUTOMATIC MICROPROCESSOR CONTROLLED EXTRUSION BLOW MOULDING WITH PARISON PROGRAMMING
The wheel slows to match the parison speed on closing and then speeds up to pull away from the head and insert the blow pin.