TERMIUM Plus®

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

PREFORM CAVITY [6 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2015-03-24

English

Subject field(s)
  • Plastics Manufacturing
DEF

A shaped plastic mass, generally in the form of a tube, used in blow moulding.

CONT

Blow molding is a process for the production of hollow objects in which air or occasionally nitrogen is used to expand a hot preform(or parison) against a female mold cavity.

OBS

The hollow plastic tube, from which a container, toy, etc. is blow molded.

OBS

parison: term and definition standardized by the International Organization for Standardization (ISO).

French

Domaine(s)
  • Plasturgie
DEF

Masse de plastique formée, généralement sous forme tubulaire, utilisée pour un moulage par soufflage.

CONT

On utilise pour réaliser des corps creux, l'association d'une extrudeuse et d'une presse à souffler. La première donne un tube (paraison) qui est pincé à ses deux extrémités dans un moule en deux parties porté par la seconde [...]

OBS

paraison : terme et définition normalisés par l'Organisation internationale de normalisation (ISO).

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
DEF

Masa plástica formada, generalmente bajo la forma de un tubo, utilizada en el moldeo por soplado.

Save record 1

Record 2 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 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

Injection blow molding required as many as four mold water temperature controllers to fine tune the temperature of individual zone or areas of the preform cavity.... In high temperature situations, oil circulating units are substituted.

French

Domaine(s)
  • Plasturgie
OBS

Ces deux circuits permettent un réglage plus souple de la température de la préforme en fonction du polymère et de la forme de l'objet (de 70 à 150 °C, par circulation d'eau ou d'huile).

Spanish

Save record 4

Record 5 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 5

Record 6 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 6

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