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Process for the cryogenic production of blow mould

Patent, Kühlung Blasformteile mit LIN

The invention relates to a process for producing blow moulded plastic parts. The blowing medium used is an inert gas such as nitrogen, which is fed into a deformable preform (7) in a blow mould in order to blow it up and subsequently cool it from within.

 

According to the invention, the nitrogen introduced as a blowing medium consists substantially, and preferably exclusively, of warm, dry nitrogen which has previously been vapourized during the internal cooling of a blown-up preform (7), the blow mandrel (5) and blow mould (6) being flushed with warm, dry nitrogen when the latter is open.

 

The internal cooling is carried out at a higher inlet pressure than that of the blowing-up process. The invention also relates to a device for implementing the process.

Patent, Kühlung Blasformteile mit LIN

 

 

 

 

Weitere interessante Informationen zu unserer Unternehmensberatung finden Sie unter:

Leistungsbeschreibung, Optimierung Verfahrenstechnik
Beratungsablauf
Leistungsbeschreibung, Beratung cryogene (kryogene) Anwendungen

 

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