TERMIUM Plus®

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

PREFORM NECKRING [5 records]

Record 1 2003-03-20

English

Subject field(s)
  • Plastics Manufacturing
  • Medication
DEF

A mold into which a plasticated material is introduced from an exterior heating cylinder.

CONT

The preform mold consists of four major components :preform cavity, injection nozzle, neckring insert, and core rod assembly.

CONT

Figure 82.6. The indexing table of a three-station injection blow-molder. On the right are the parison preform molds. On the left are the bottle blow molds. In the center is the stripper bar. Mounted to the indexing table are three sets of core rods.

OBS

injection mould: term standardized by ISO.

Key term(s)
  • preform mould
  • parison preform mould
  • parison mould

French

Domaine(s)
  • Plasturgie
  • Médicaments
CONT

À partir d'un matériau plastifié par la chaleur, on procède à l'injection sous forte pression [...] de ce matériau à travers une buse de faible diamètre, dans une cavité du moule à préforme.

OBS

moule à injection : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
  • Medicamentos
Save record 1

Record 2 1998-06-22

English

Subject field(s)
  • Plastics Manufacturing
CONT

The neckring insert has four functions or features: It forms the finish or threaded neck section of the bottle. Because it is an insert, it provides a relatively low-cost, easy method for changing the size or style of the finish. It firmly centers and locates the core rod in the parison cavity. It provides thermal isolation.

OBS

Figure 82.4. ... typical three-station injection blow-molding machine.

Key term(s)
  • neck ring insert
  • neckring
  • preform neckring

French

Domaine(s)
  • Plasturgie
CONT

L'ébauche tend à se rétracter en prenant appui à l'extrémité du poinçon et, si l'on ne prend pas garde, décale dans l'espace la bague de col qui, dans ce cas, ne retrouve plus sa bonne place dans le moule de soufflage.

Spanish

Save record 2

Record 3 1997-12-17

English

Subject field(s)
  • Plastics Manufacturing
CONT

The injection blow-molding process requires two molds : one for molding the preform or parison, the other for molding the bottle. The preform mold consists of four major components :preform cavity, injection nozzle, neckring insert, and core rod assembly.

French

Domaine(s)
  • Plasturgie
CONT

À partir d'un matériau plastifié par la chaleur, on procède à l'injection sous forte pression [...] de ce matériau à travers une buse de faible diamètre, dans une cavité du moule à préforme. Sous l'effet de la pression, le matériau plastifié remplit la cavité et se solidifie au contact des parois du moule. On obtient la préforme, c'est la phase d'injection.

Key term(s)
  • cavité du moule

Spanish

Save record 3

Record 4 1997-12-17

English

Subject field(s)
  • Plastics Manufacturing
CONT

The injection blow-molding process requires two molds : one for molding the preform or parison, the other for molding the bottle. The preform mold consists of four major components :preform cavity, injection nozzle, neckring insert, and core rod assembly.

French

Domaine(s)
  • Plasturgie
CONT

L'intérêt d'une pression élevée réside dans : [...] la compensation des forces de frottement et des pertes de pression dans le bloc de répartition et dans les buses d'alimentation des empreintes; [...]

OBS

À partir d'un matériau plastifié par la chaleur, on procède à l'injection sous forte pression [...] de ce matériau à travers une buse de faible diamètre, dans une cavité du moule à préforme. Sous l'effet de la pression, le matériau plastifié remplit la cavité et se solidifie au contact des parois du moule. On obtient la préforme, c'est la phase d'injection.

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
Save record 4

Record 5 1997-11-26

English

Subject field(s)
  • Plastics Manufacturing
CONT

The preform mold consists of four major components :preform cavity, injection nozzle, neckring insert, and core rod assembly.

CONT

The core rod assembly ... has four functions or features: It forms the interior of the preform. It supports the parison or the bottle during transfer. It is the valve where air enters to expand the parison. The valve is located either in the shoulder area or in the tip, the location being governed by the bottle or core rod length-to-diameter ratio. Wide mouth bottles (that is, core rods with low length-to-diameter ratios) will usually have a shoulder valve. The core rod has a "blow by" groove. This annular groove, located near the seating shank ... is needed to seal the parison and prevent excessive air loss during bottle blowing and to eliminate elastic retraction of the parison during the transfer between cavities.

CONT

Even though the parison is exposed to the air, melt strength is not as crucial because of the support provided by the parison core rod.

OBS

See Figure 82.21 in PLMAT, p. 1085.

French

Domaine(s)
  • Plasturgie
CONT

[...] le soufflage s'effectue en général au travers du noyau.

OBS

Voir Figure 31 dans TECHN.

Spanish

Save record 5

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