Kautex Maschinenbau Gmbh

Willi Doehmen

Stefan Walbroel

Michael Pappert

Martin Balzer

Peter Kluesener

Olaf Weiland

Roger Stehr

Heinz-Werner Eckerskorn

Rene Vanmarcke

Lutz Forst

Thilo Schmidt

A method for producing a plastic article includes extruding an approximately tubular blank from an extrudate and shaping the blank into a hollow body inside a blow-mold using differential pressure, wherein at least one insertable part is introduced into the interior of the partially molded plastic article before the latter is fully shaped into a finished plastic article, and the tubular blank is arranged between at least two halves of a blow-mold by means of an intermediate frame.

Method for producing a plastic article, and part of a blow-mould

In an extrusion head and an extrusion method for the production of a tubular multilayer preform the extrusion head includes at least two feed paths for feeding plasticised plastic material from one or more extruders to an annular passage arrangement. The annular passage arrangement includes mutually concentric annular passages forming mutually separate flow paths for the various layers of the preform. An annular gap nozzle has an annular gap communicating with the annular passage arrangement, and at least one flow passage communicates with an annular passage of the annular passage arrangement, for the introduction of a translucent viewing strip. The flow passage communicates with the annular passage in question upstream of the annular gap in the region of separation of the flow paths.

Extrusion head

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Moenchengladbach, Germany

Willi Doehmen