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Article | REF: AM3646 V1

Extrusion blow-molding of large hollow plastic bodies

Author: Serge Dupont

Publication date: April 10, 2013

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6. Blow molds

The mould ensures :

  • the final shape of the product by contact of the parison with the mould cavity during blowing;

  • gluing the parison back together to form the envelope;

  • sealing the envelope in the mold;

  • cooling the envelope through heat exchange.

A mould consists of the following components (figure 37 ):

  • the impression, into which the shape of the blown body is carved;

  • the socket, which secures the impression to the press platens;

  • Settling, which guides and centers the mold during closing;...

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