TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

TWO PART FINISH [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1997-11-17

English

Subject field(s)
  • Plastics Manufacturing
CONT

Another process somewhat related to extrusion blow molding is the extrusion/molded neck process. Still used today by Owens-Illinois, this is a proprietary process that traces its roots to glass-blowing technology. It is unique in that the bottle neck finish is injection molded and the bottle body is extrusion blow-molded. In this process, the two halves of a neck finish cavity or neckring are mounted to an actuating head assembly, which intermeshes with the two halves of the blow-mold cavity. The process cycle begins with the main body mold cavity open and the neckring cavity closed. The actuating head assembly moves downward to contact the extrusion die head. When it is in position, extrusion pressure fills the neck section with plastic melt. After it is held for one to two seconds, the head assembly moves upward while, simultaneously, the parison is extruded. When the head assembly reaches the top of its stroke, the blow-mold cavity closes on the parison. The remaining steps of parison pinch-off, blowing, and part removal all follow conventional techniques. Although the production cycle is somewhat slow, the process offers the quality advantage of an accurately molded neck and the process advantage of a parison held at both ends.

Key term(s)
  • extrusion moulded neck blow-moulding process
  • extrusion moulded neck blow moulding process
  • extrusion molded neck blow molding process
  • forced extrusion blow moulding
  • extrusion/moulded neck process
  • extrusion molded neck process
  • extrusion moulded neck process

French

Domaine(s)
  • Plasturgie

Spanish

Save record 1

Record 2 1986-07-21

English

Subject field(s)
  • Ornamental Glassware
  • Glassware
  • Collection Items (Museums and Heritage)
OBS

Glass National Reference Collection, Parks Canada: Display cabinet labels.

OBS

Containers: Finishes

French

Domaine(s)
  • Verrerie d'art
  • Objets en verre
  • Objets de collection (Muséologie et Patrimoine)

Spanish

Save record 2

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