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IMPACT MOULD [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1998-09-02

English

Subject field(s)
  • Plastics Manufacturing
OBS

Cold mould; closed by sudden impact;...

French

Domaine(s)
  • Plasturgie

Spanish

Save record 1

Record 2 1997-11-17

English

Subject field(s)
  • Plastics Manufacturing
CONT

Extrusion stretch blow moulding(ESBM). A parison is extruded and as the preblow mould closes, a mandrel descends to form the bottle neck. The parison is subsequently pinched and inflated, then conditioned at the optimum temperature for orientation in the next stage. Transfer of the blown and conditioned preform to the stretch-blow mould takes place; fabrication of the finished part is achieved by stretching in the circumferential direction(pneumatic inflation) and in the longitudinal direction(mechanical push-rod), followed by rapid cooling to prevent relaxation of the(biaxial) molecular orientation. This process is centred on oriented PVC(OPVC) bottle manufacture, for transparent containers with enhanced clarity and greater resistance to gas permeation, higher impact strength and burst pressure.

Key term(s)
  • extrusion stretch blow molding

French

Domaine(s)
  • Plasturgie
CONT

Extrusion-soufflage avec bi-étirage. C'est l'association de trois techniques : l'extrusion, le soufflage et le bi-étirage. Ces trois techniques peuvent être utilisées en ligne : c'est ce que l'on appelle le cycle chaud, ou procédé en une étape [...] On peut également utiliser ces techniques de façon séparée; c'est ce que l'on appelle le cycle froid, ou procédé en deux étapes [...]

CONT

Extrusion-soufflage avec bi-étirage en cycle chaud; extrusion-soufflage avec bi-étirage en cycle froid.

Spanish

Save record 2

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