B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
B29C 49/08 (2006.01) B29C 49/00 (2006.01) B29C 55/30 (2006.01) B29C 61/00 (2006.01) B29C 69/02 (2006.01) B29C 61/02 (2006.01)
Patent
CA 2081979
2081979 9112951 PCTABS00007 A container is produced from a preform which is formed by expansion in the axial and/or radial direction of a hollow blank of originally substantially amorphous material. In the production, the circumference of the preform is reduced by heating of material in the preform body, at least one material portion of the container body being displaced, by means of a mechanical forming device (30), in a direction towards the centre of the preform for forming an outer bounding surface of the container comprising material portions whose distance to the centre axis of the container is less than the distance of corresponding material portions to the centre axis (26) of the preform. An apparatus for producing the container includes the mechanical forming device which, during reforming of the preform into the container, abuts against material in the preform. The mechanical forming device includes a forming portion (33) provided with channels for thermal medium and with a forming surface (37) disposed, under energy exchange with material in the preform, to displace material shrunk by heating of the material towards the centre axis of the preform.
A/s Plm Haustrup Holding
Swabey Ogilvy Renault
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