Preform cavity insert cooling

The invention refers to a preform mold assembly. The assembly comprises a cavity plate; a cavity insert received in a bore in the cavity plate, the cavity insert for forming the body portion of the preform the cavity insert defining at least in part an annular decompression chamber for receiving a s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	LAUSENHAMMER, MANFRED
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention refers to a preform mold assembly. The assembly comprises a cavity plate; a cavity insert received in a bore in the cavity plate, the cavity insert for forming the body portion of the preform the cavity insert defining at least in part an annular decompression chamber for receiving a supply of cooling fluid from an cooling fluid inlet and an annular film cooling chamber in fluid communication with the annular decompression chamber; the annular film cooling chamber for delivering a flow of cooling fluid received from the annular decompression chamber uniformly along the length of the body portion of the preform. The invention also refers to a method of circulating cooling fluid to cool the body portion of a preform.