Method and device for reforming plastic pre-forms

The apparatus (1) has a clean room (20) having a blow station (8) which comprises a blow mold for shaping the plastic preforms (10) using process pressure. A venting device is provided for venting the process pressure or reducing the process pressure to recovery pressure in atmosphere. The venting d...

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Bibliographische Detailangaben
Hauptverfasser:	Handschuh, Eduard, Söllner, Jürgen
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACTUATING-FLOATS AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TAPS THERMAL INSULATION IN GENERAL TRANSPORTING VALVES WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The apparatus (1) has a clean room (20) having a blow station (8) which comprises a blow mold for shaping the plastic preforms (10) using process pressure. A venting device is provided for venting the process pressure or reducing the process pressure to recovery pressure in atmosphere. The venting device has a venting valve through which the process pressure or the recovery pressure is vented into the atmosphere through a sound absorber. A pressure drop safety device is provided on the venting device for closing the venting valve before the atmospheric pressure level is reached. An independent claim is included for method for molding plastic preform into plastic container.