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MOLD CAVITY [48 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-04-20

English

Subject field(s)
  • Plastics Manufacturing
  • Packaging in Plastic
DEF

A molding process in which two different materials are injected... into a mold cavity to produce products having surfaces of one plastic with desirable characteristics and a core of another material with its desired characteristics.

CONT

Sandwich injection molding refers to the production of a sandwich structure via injection molding. Different polymer melts are injected into the cavity through the same gate ... a characteristic sandwich structure with a skin and a core layer is formed.

OBS

co-injection moulding: Although this term is commonly used as a synonym for sandwich injection moulding, it can also be used in a more general sense to indicate the injection of two or more polymers.

French

Domaine(s)
  • Plasturgie
  • Emballages en matières plastiques
CONT

Le procédé d’injection sandwich consiste à injecter, à l’aide d’une presse bimatière et d’un moule standard, une pièce constituée d’une âme (ou cœur) et d’une peau (ou enveloppe) réalisées dans deux polymères différents. L’injection des deux matériaux peut être séquentielle [...] ou simultanée.

CONT

Les applications potentielles de l’injection sandwich sont très variées notamment pour la réalisation d’emballages «actifs» ou «intelligents» (ayant une action contrôlée sur le contenu du produit), l’intégration de nouvelles fonctionnalités (en particulier sensorielles).

OBS

Bien que, en théorie, le nombre de matériaux ne soit pas limité, la majorité des pièces réalisées à ce jour n’en associent que deux.

OBS

co-injection : Ce terme est aussi utilisé dans un sens plus général, indiquant l'injection de plus d'un polymère.

OBS

sandwichs (pl.) : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2006).

OBS

Pluriel : des sandwichs; des sandwiches.

Spanish

Save record 1

Record 2 2016-11-18

English

Subject field(s)
  • Casting and Patternmaking (Metal Processing)
DEF

A casting technique whereby molten metal is thrust into a mold by centrifugal force.

CONT

The inertia forces of rotation distribute the molten metal into the mold cavities during the centrifugal casting, of which there are three categories : true centrifugal casting, semi-centrifugal casting, and centrifuging. The first two processes produce hollow cylindrical shapes and parts with rotational symmetry, respectively. In the third process the mold cavities are spun at a certain radius from the axis of rotation; the centrifugal force thus increases the pressure in the mold cavity.

OBS

The most common method is by means of a spring-driven arm supporting a crucible and mold flask.

French

Domaine(s)
  • Moulage et modelage des métaux

Spanish

Campo(s) temático(s)
  • Colada y modelaje de metales
DEF

[Proceso que] consiste en verter el material fundido en un molde (generalmente cilíndrico), donde la fuerza centrífuga hará su trabajo haciendo que el material fundido se acomode o tome la forma de las paredes del molde, teniendo así un acabado más uniforme y más denso que en otros tipos de coladas.

CONT

La fundición por colada centrífuga es un proceso que se utiliza para producir piezas cilíndricas simétricas respecto a un eje. [...] Como su nombre lo indica, este proceso utiliza las fuerzas de inercia (causadas por un movimiento de rotación) para distribuir el metal fundido en las cavidades del molde. [...] La colada centrífuga se clasifica ya sea por la configuración del proceso, es decir, colada centrífuga horizontal o colada centrífuga vertical y por el método utilizado en dicho proceso, los cuales son tres: centrífugo real, semi-centrífugo y centrífugo.

PHR

colada centrífuga horizontal, colada centrífuga vertical

Save record 2

Record 3 2015-03-31

English

Subject field(s)
  • Plastics Manufacturing
DEF

The process of moulding a thermosetting material by passage from a heated pot into the cavity of a closed, heated mould.

CONT

For some applications, it is desirable to close the mold first and then introduce the molding compound in its fluid state through a small opening or gate leading to the mold cavity or cavities. This technique is called transfer or plunger molding.

OBS

In as much as most modern-day transfer molding utilizes hydraulically actuated plungers, the term transfer molding will be used ... to refer to the plunger molding process, not the pot-type molding process.

OBS

transfer moulding: term and definition standardized by ISO.

French

Domaine(s)
  • Plasturgie
DEF

Procédé de moulage d'une matière thermodurcissable, par transfert d'un pot chauffé dans l'empreinte d'un moule fermé et chauffé.

OBS

moulage par transfert : terme et définition normalisés par l'ISO.

Spanish

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

Proceso de moldear un material termoestable por transferencia de una cápsula caliente a la cavidad de un molde cerrado, caliente.

Save record 3

Record 4 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 4

Record 5 2014-04-11

English

Subject field(s)
  • Plastics Manufacturing
DEF

Dimensional distortion of a plastic object after moulding or other fabrication.

CONT

A serious problem encountered with complex-shaped injection-molded parts is warpage... Possible causes for warpage include overpacking in the gate area because of high injection pressure, improperly balanced core and cavity temperatures, molded-in strains caused by low stock temperature or the mold being too cold, too long a flow, insufficient gates, improper design, nonuniform walls, improperly balanced multiple gates, the part being ejected when it is too hot, or inadequate or poor location of the knockout mechanism.

OBS

warpage; warping: terms and definition standardized by ISO [International Organization for Standardization].

French

Domaine(s)
  • Plasturgie
DEF

Distorsion dimensionnelle d'un objet en plastique après moulage ou une autre opération.

OBS

gauchissement; gauche : termes et définition normalisés par l'ISO [Organisation internationale de normalisation].

Spanish

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

Distorsión dimensional de un objeto plástico después del moldeo o de otra operación.

Save record 5

Record 6 2014-04-11

English

Subject field(s)
  • Plastics Manufacturing
  • Facilities and Equipment (Rubber)
DEF

An edge gate where the opening from the runner into the mold is located below the parting line or mold surface ...

CONT

A submarine gate penetrates through the steel of the cavity. When the mold opens, the part sticks to the cavity and shears the piece at the gate. A properly located KO [knockout] pin, using the flexibility of the plastic, ejects the runner and pulls out the gate. This type of gate is usually used in automatic molds.

OBS

[In] conventional edge gating, ... the opening is machined into the surface of the mold. [In] submarine gates, the item is broken from the runner system on ejection from the mold.

OBS

submarine gate; tunnel gate: terms standardized by ISO [International Organization for Standardization].

French

Domaine(s)
  • Plasturgie
  • Installations et équipement (Caoutchouc)
DEF

Canal d'injection situé sous le plan de joint de façon que la carotte soit arrachée lors de l'éjection.

OBS

entrée sous-marine; entrée sous le plan; entrée sous le plan de joint : termes et définition normalisés par l'ISO [Organisation internationale de normalisation].

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
  • Instalaciones y equipo (Caucho)
DEF

Canal de inyección situado debajo de la superficie de unión, de manera que con la operación de eyección la mazarota se desprende.

CONT

Entrada de túnel o submarina. La entrada es separada de la colada al abrir el molde o por medio de una ruptura forzada en el momento de expulsar la pieza. La entrada de túnel es adecuada para una inyección lateral.

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Record 7 2014-04-10

English

Subject field(s)
  • Plastics Manufacturing
  • Facilities and Equipment (Rubber)
DEF

A restricted orifice of 0. 030 inch or less in diameter through which molten resin flows into a mold cavity.

OBS

pin-point gate: term standardized by ISO.

French

Domaine(s)
  • Plasturgie
  • Installations et équipement (Caoutchouc)
DEF

Canal ou orifice d'injection de section circulaire très fine ne laissant pour ainsi dire aucune carotte sur l'objet moulé.

OBS

entrée capillaire : terme et définition normalisés par l'ISO.

Key term(s)
  • entrée en pointe d'aiguille
  • orifice en tête d'épingle

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
  • Instalaciones y equipo (Caucho)
DEF

Canal de inyección u orificio de sección circular muy pequeña, que casi no deja un espacio (mazarota) en el objeto moldeado.

Save record 7

Record 8 2014-03-24

English

Subject field(s)
  • Glues and Adhesives (Industries)
  • Plastics Manufacturing
  • Aeronautical Engineering and Maintenance
  • Textiles: Preparation and Processing
DEF

A dry adhesive that is rendered tacky by application of heat.

CONT

A label with a heat-activated adhesive is automatically placed into the mold cavity and held by a vacuum.

OBS

heat activated adhesive: term and definition standardized by ISO.

French

Domaine(s)
  • Colles et adhésifs (Industries)
  • Plasturgie
  • Aérotechnique et maintenance
  • Apprêt et traitements divers (Textiles)
DEF

Adhésif sec qui devient collant par apport de chaleur.

OBS

adhésif thermocollant : terme et définition normalisés par l'ISO.

Spanish

Campo(s) temático(s)
  • Pegamentos y adhesivos (Industrias)
  • Fabricación de plásticos
  • Ingeniería aeronáutica y mantenimiento
  • Preparación y elaboración (Textiles)
DEF

Adhesivo seco que desarrolla adherencia por aplicación de calor.

Save record 8

Record 9 2012-10-29

English

Subject field(s)
  • Food Additives
  • Chemistry
DEF

A lubricant, such as wax or silicone oil, used to coat a mold cavity to prevent the molded piece from sticking when removed.

CONT

... release agents such as calcium stearate, mineral oil, etc. ... keep bakery goods and candy from sticking to the pans.

CONT

Release agents help food to separate from surfaces it touches during manufacture or transport.

OBS

release agent : term standardized by ISO.

French

Domaine(s)
  • Additifs alimentaires
  • Chimie
DEF

Substance, déposée sur le moule ou ajoutée à une matière à mouler, destinée à faciliter la sortie du produit moulé hors du moule.

CONT

On peut [...] employer des additifs pour faciliter le travail, le rendement ou le résultat lors de la fabrication d'un produit alimentaire (améliorants des farines, agents anti-mousse, agents de démoulage).

OBS

La langue de départ de la source ISO-472 n'a pu être identifiée.

OBS

agent de démoulage; agent antiadhérent : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Aditivos alimentarios
  • Química
Save record 9

Record 10 2012-01-18

English

Subject field(s)
  • Plastics Manufacturing
CONT

Parts made from partially crystalline engineering polymers should preferably not be made by hot runner injection moulding if a perfect surface finish is essential. It is advisable to make use of a subsidiary runner, which thermally isolates the nozzle from the moulded part, thereby reducing the risk of surface defects.

OBS

Runners can be classified into two types, namely the cold runner and the hot runner. The mold temperature for the cold runner is similar to the mold temperature for the cavity. The material in the cold runner will eventually solidify, and be ejected with each cycle. The hot runner maintains the polymer at a melt temperature, either by insulation or by heating. This keeps the material fluid. Hot runners are not ejected with each cycle.

Key term(s)
  • hot-gate molding
  • hot runner molding
  • hot-runner injection moulding
  • hot-runner injection molding

French

Domaine(s)
  • Plasturgie
DEF

Procédé de moulage par injection dans lequel le canal d'alimentation du moule est chauffé afin que la carotte d'injection reste fluide et serve au moulage de la pièce suivante au lieu de rester solidaire de la pièce moulée.

OBS

moulage par injection en canal chaud; injection canal chaud : termes et définition publiés au Journal officiel de la République française le 16 octobre 2011.

Spanish

Save record 10

Record 11 2008-02-26

English

Subject field(s)
  • Presses (Machinery)
  • Pharmaceutical Manufacturing
CONT

On single-punch machines, the mixture is fed into one tablet mold(called a die cavity) by a feed shoe, as follows :-The feed shoe passes over the die cavity and releases the mixture. The feed shoe then retracts and scrapes all excess mixture away from the die cavity.-A punch-a short steel rod-the size of the die cavity descends into the die, compressing the mixture into a tablet. The punch then retracts, while a punch below the die cavity rises into the cavity and ejects the tablet.-As the feed shoe returns to fill the die cavity again, it pushes the compressed tablet from the die platform.

French

Domaine(s)
  • Presses (Machines)
  • Fabrication des produits pharmaceutiques
CONT

Machines alternatives [...] Les pièces les plus importantes de ces appareils sont les suivantes : [...] - la trémie et le sabot qui assurent l'alimentation en grain. [...] Le sabot qui est le prolongement de la trémie amène, entre chaque compression, le grain au-dessus de la chambre de compression.

Spanish

Save record 11

Record 12 2007-11-19

English

Subject field(s)
  • Plastics Manufacturing
DEF

A passageway through which molten resin flows from the nozzle to the mold cavity.

CONT

A sprue gate feeds directly into the piece from the nozzle of the machine or a runner. It has the advantage of a short direct flow, with minimal pressure loss. Its disadvantages include the lack of cold slug, the possibilities of sinking around the gate, the high stress concentration around the gate, and the need for gate removal. Most single-cavity molds of any size are gated this way.

French

Domaine(s)
  • Plasturgie

Spanish

Save record 12

Record 13 2007-11-19

English

Subject field(s)
  • Plastics Manufacturing
DEF

A method of producing an automotive vehicle body part by injecting a plastics material sequentially into a cavity of a mold fed by cold runners, the method comprising filling firstly a first region at one end of the mold, then a second region adjacent to the first region, and repeating the operation comprising filling a new region adjacent to the preceding region each time, until a last region of the mold is reached at its end opposite from the first region, wherein each cold runner is shut off using a cold rod which is axially movable in a bore intersecting the cold runner, the longitudinal section of the rod overlaying the cross section of the runner.

French

Domaine(s)
  • Plasturgie
DEF

Procédé d'injection des matières plastiques dans lequel la matière fondue est introduite dans le moule par plusieurs orifices et à des temps différents.

CONT

Alors que, dans le procédé classique, tous les points d'injection sont alimentés simultanément, dans l'injection séquentielle, ils sont alimentés au fur et à mesure que chacun d'eux est dépassé par le flux de matière venant du point d'injection placé plus en amont. De cette façon, il ne se forme plus de lignes de soudure, inesthétiques et qui fragilisent la pièce, entre les flux de matière.

Spanish

Save record 13

Record 14 2007-11-19

English

Subject field(s)
  • Plastics Manufacturing
OBS

In most processes, the air that expands the parison against the mold cavity must enter through blow pin tooling, which is available in four basic styles : simple tube, needle, ram down or calibrated prefinish, and pull-up prefinish. With the tube style, the mold is closed around the parison, which is closed and sealed around the tube. The tube usually enters the cavity through the center of the extrusion mandrel.

Key term(s)
  • simple tube blow pin
  • tube blow pin

French

Domaine(s)
  • Plasturgie
CONT

[...] un dispositif de soufflage constitué soit d'une aiguille qui traverse la paroi du moule et qui permet le gonflage de la paraison dans l'empreinte pour obtenir des objets tels que des jouets, des arrosoirs de jardin, des contenants de grand volume..., soit d'une canne qui est introduite dans l'orifice supérieur de la bouteille ou du flacon à mouler.

Spanish

Save record 14

Record 15 2007-11-19

English

Subject field(s)
  • Plastics Manufacturing
CONT

Sequential injection molding of thermoplastic polymers has gained considerable importance in recent years.... In a single mold with two or more inlets and moving parts that allow sequential entrance of melts into different sections of a main cavity, two or more types of thermoplastics are sequentially injected. The final product is a single piece made of polymers with different mechanical properties, which are permanently bonded together.

Key term(s)
  • sequential injection moulding

French

Domaine(s)
  • Plasturgie
OBS

injection séquentielle : Procédé d'injection des matières plastiques dans lequel la matière fondue est introduite dans le moule par plusieurs orifices et à des temps différents.

Spanish

Save record 15

Record 16 2007-11-19

English

Subject field(s)
  • Plastics Manufacturing
OBS

In most processes, the air that expands the parison against the mold cavity must enter through blow pin tooling, which is available in four basic styles : simple tube, needle, ram down or calibrated prefinish, and pull-up prefinish.... With the needle style, a hypodermic-shaped needle is pierced through the parison from some remote position in the mold after the mold has closed. The location of the hole on the part is usually inconspicuous or hidden from view.

Key term(s)
  • needle blow pin

French

Domaine(s)
  • Plasturgie
CONT

[...] un dispositif de soufflage constitué soit d'une aiguille qui traverse la paroi du moule et qui permet le gonflage de la paraison dans l'empreinte pour obtenir des objets tels que des jouets, des arrosoirs de jardin, des contenants de grand volume..., soit d'une canne qui est introduite dans l'orifice supérieur de la bouteille ou du flacon à mouler.

Spanish

Save record 16

Record 17 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 17

Record 18 2000-09-27

English

Subject field(s)
  • Foundry Practice
DEF

The ability of liquid metal to run into and fill a mold cavity.

Key term(s)
  • pourability

French

Domaine(s)
  • Fonderie
DEF

Aptitude d'un métal liquide à s'écouler et à épouser les formes d'un moule.

Spanish

Save record 18

Record 19 1999-09-17

English

Subject field(s)
  • Paleontology
DEF

Secondary rock or mineral material that fills a natural mold; specifically a replica or reproduction of the external details... of a fossil shell, skeleton, or other organic structure, produced by the filling of a cavity formed by the decay or dissolution of some or all of the original hard parts of which the organism consisted.

CONT

A cast results from the filling of a cavity formed by the decay of some or all of the tissues of a plant part.

French

Domaine(s)
  • Paléontologie
CONT

Les travertins [...] renferment souvent de nombreux moulages, par incrustation, de coquilles et de débris végétaux.

CONT

C'est parfois l'os lui-même qu'on enlève lorsque le remplissage des cavités est parfait et en substance suffisamment dur pour restituer la forme des parties molles (remplissage par de la calcite cristalline). On dégage ainsi des moulages d'encéphales [...]

OBS

Cavité originelle remplie secondairement de matériel.

OBS

[...] il peut arriver [...] que la coquille dissoute laisse un vide qui secondairement sera rempli par des minéraux de nature variée apportés le plus souvent par les eaux d'infiltration : nous aurons alors affaire à une réplique de l'organisme originel [...]

Spanish

Save record 19

Record 20 1998-09-02

English

Subject field(s)
  • Plastics Manufacturing
DEF

A thermoforming process in which a plug or male mold is used to partially preform the part before forming is completed using vacuum or pressure.

CONT

Plug Assist Forming. After the heat-softened sheet is sealed across the mold cavity, a plug shaped similar to the cavity penetrates the sheet causing it to stretch as it is carried into the cavity. When the plug has completed its penetration stroke, vacuum and/or compressed air is introduced to transfer the sheet from the plug surface to the cavity mold surface. The plug size, combined with the rate and depth of penetration, affect the amount of stretching that occurs and is primarily responsible for the ultimate material distribution in the finished product.

Key term(s)
  • plug-assist forming
  • plug-assist thermoforming
  • plus assist thermoforming
  • plug thermoforming

French

Domaine(s)
  • Plasturgie

Spanish

Save record 20

Record 21 1998-08-31

English

Subject field(s)
  • Plastics Manufacturing
DEF

An injection or transfer mold wherein the cavity is filled with molding material directly into the center of the part.

Key term(s)
  • centre gated mold
  • centre-gated mold
  • center gated mould
  • centre gated mould
  • center-gated mould

French

Domaine(s)
  • Plasturgie

Spanish

Save record 21

Record 22 1998-08-24

English

Subject field(s)
  • Plastics Manufacturing
  • Industrial Tools and Equipment
  • Machinery
CONT

In a modern injection molding machine, the pellets are conveyed forward within the barrel by a rotating screw, and melt as they go. The molten plastic is deposited at the forward end of the barrel, displacing the screw backward. When enough material has been plasticized, a hydraulic cylinder pushes the screw forward, forcing the molten plastic ahead of it through a nozzle, sprue, runners, and a narrow gate into a water-cooled mold cavity, where the molten plastic solidifies.

CONT

... if the equipment with the malfunction is a plastic injection molding machine, the possible functions might include injection forward, injection return, screw run, back pressure control, clamp close, clamp pressurization, prefill shift, mold protect, and clamp open.

OBS

injection machine: term standardized by ISO.

Key term(s)
  • injection-moulding machine

French

Domaine(s)
  • Plasturgie
  • Outillage industriel
  • Machines
CONT

Les premières presses à injecter comportaient un piston poussant la matière ramollie dans la buse [...] Dans les presses actuelles, la plastification est assurée par une vis sans fin, analogue à celle d'une extrudeuse. Cette vis [...] fait alternativement fonction de piston d'injection et de vis de plastification.

OBS

machine à injecter : terme normalisé par l'ISO.

Key term(s)
  • machine d'injection

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
  • Herramientas y equipo industriales
  • Maquinaria
Save record 22

Record 23 1998-07-15

English

Subject field(s)
  • Plastics Manufacturing
CONT

... flash is a by-product of extrusion blow molding and it must be provided for in the design of the mold cavity tooling. Where the flash will exit from the cavity, clearance or a flash pocket is created. The depth of this flash pocket is critical, particularly with large-diameter, thin-walled parisons. If too deep, the flash will not be adequately cooled and this may cause trimming problems. If too shallow, the flash will hold open the mold, creating a thick pinch-off that may also cause trimming problems. Dividing the cavity from the flash pocket is the pinch-off.

French

Domaine(s)
  • Plasturgie

Spanish

Save record 23

Record 24 1998-07-15

English

Subject field(s)
  • Plastics Manufacturing
  • Rubber
DEF

In transfer molding, the material remaining in the transfer pot after the mold has been filled. A certain amount of cull is usually necessary to enable the operator to know that the cavity is filled.

French

Domaine(s)
  • Plasturgie
  • Caoutchouc
CONT

Habituellement le pot de transfert et le piston sont chauffés par des résistances électriques noyées dans des canaux prévus à cet effet ou par circulation de vapeur. [...] De plus le piston de transfert comporte à sa base une cavité dite «tenon» qui retient la carotte et le culot de moulage, assurant ainsi le nettoyage de la chambre de transfert à l'ouverture.

Spanish

Save record 24

Record 25 1998-07-13

English

Subject field(s)
  • Plastics Manufacturing
CONT

The blow mold typically consists of three major components : bottle cavity, neckring insert, and bottom plug insert.

OBS

blow moulding: A method of forming hollow objects by inflating a parison into a mould with compressed gas.

OBS

blowing mould: term standardized by ISO.

Key term(s)
  • blowing mold
  • blow molding tool

French

Domaine(s)
  • Plasturgie
CONT

Puis cette préforme encore chaude [...] est transférée dans le moule de soufflage (appelé aussi moule de finition). L'air comprimé est alors introduit au travers du noyau portant la préforme. Le matériau se trouve alors plaqué contre les parois du moule de finition refroidi et se solidifie pour donner l'objet final : c'est la phase de soufflage.

OBS

moule pour soufflage : terme normalisé par l'ISO.

Spanish

Save record 25

Record 26 1998-06-22

English

Subject field(s)
  • Plastics Manufacturing
  • Facilities and Equipment (Rubber)
DEF

Mold designed for quick changing of interchangeable cavity parts.

Key term(s)
  • standardized mold
  • standardized mould
  • standardised mold
  • standardized mould
  • standard mold
  • standard mould

French

Domaine(s)
  • Plasturgie
  • Installations et équipement (Caoutchouc)

Spanish

Save record 26

Record 27 1998-06-22

English

Subject field(s)
  • Plastics Manufacturing
CONT

The [continuous extrusion blow-molding] process has three subcategories : the rising mold method, the rotary method, and the shuttle method. In the rising mold method, the parison is continuously extruded directly above the mold cavity. When it is at the proper length, the mold rises quickly to capture the parison and returns downward to the blow station. After blowing the bottle, the mold opens, the part is removed, and the process repeats.

Key term(s)
  • rising mould method
  • continuous extrusion with rising moulds
  • rising table blow moulding
  • rising table blow molding

French

Domaine(s)
  • Plasturgie

Spanish

Save record 27

Record 28 1998-06-22

English

Subject field(s)
  • Plastics Manufacturing
  • Facilities and Equipment (Rubber)
DEF

A plunger used to force softened molding material into the closed cavity of the transfer mold.

Key term(s)
  • transfer plunger
  • pommel

French

Domaine(s)
  • Plasturgie
  • Installations et équipement (Caoutchouc)

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
  • Instalaciones y equipo (Caucho)
Save record 28

Record 29 1998-05-26

English

Subject field(s)
  • Foundry Practice
  • Casting and Patternmaking (Metal Processing)
DEF

A metal plate inserted in the surface of a sand mold or placed in the mold cavity to rapidly cool and solidify the casting, producing a hard surface.

CONT

Sand casting. (...) Design considerations for risers include their location, shape, and size, together with factors such as the use of chills (metal inserts to increase the freezing rate at certain locations to prevent formation of voids in the casting) (...)

French

Domaine(s)
  • Fonderie
  • Moulage et modelage des métaux
DEF

Pièce métallique placée dans la masse d'un moule en sable et contre laquelle se solidifie le métal.

Spanish

Save record 29

Record 30 1998-02-02

English

Subject field(s)
  • Plastics Manufacturing
DEF

Small opening between runner and cavity in an injection or transfer mold which breaks cleanly when the piece is ejected.

CONT

Restricted gates are circular in cross section and, for most materials, do not exceed 0.060in. (1.5mm) in diameter.

OBS

restricted gate: term standardized by ISO.

French

Domaine(s)
  • Plasturgie
OBS

entrée rétrécie : terme normalisé par l'ISO.

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
Save record 30

Record 31 1998-01-27

English

Subject field(s)
  • Plastics Manufacturing
CONT

Venting. When the hot plastic is injected into the mold it displaces air. In a well-built, properly clamped mold without vents, the injection material may compress the air. The heat of compression might burn the material. The force of the compression might open the mold, causing flash. The resistance of the compressed air might prevent the mold from completely filling. These problems are alleviated by used of vents, which are usually ground on the parting line. Their size depends on the nature of the material and the size of the cavity.

French

Domaine(s)
  • Plasturgie
CONT

Évacuation de l'air de l'empreinte. L'air contenu dans l'empreinte, non évacué et comprimé, provoque des brûlures sur les pièces moulées ou d'autres défauts tels que remplissages incomplets, soufflures, bulles ou soudures visibles et cassantes. Ce risque d'emprisonnement d'air dans la cavité est diminué lorsque l'empreinte est composée de plusieurs éléments. On peut dans tous les cas usiner de petits canaux dans le plan de joint.

Spanish

Save record 31

Record 32 1997-12-23

English

Subject field(s)
  • Plastics Manufacturing
CONT

The hydraulic injection cylinders are located on each side of the screw or there is a single hydraulic cylinder directly behind the screw. They bring the screw forward, injecting previously melted material into the mold cavity. The injection pressure is maintained for a predetermined length of time. This is called the boost or hold pressure.

Key term(s)
  • boosting pressure

French

Domaine(s)
  • Plasturgie
CONT

Cette pression de maintien définit la force d'ouverture du moule, et, par suite, détermine le nombre possible de cavités pour un objet et un polymère donnés.

OBS

maintien : Figure 30. Cycle d'injection-soufflage.

Spanish

Campo(s) temático(s)
  • Fabricación de plásticos
Save record 32

Record 33 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 33

Record 34 1997-12-17

English

Subject field(s)
  • Plastics Manufacturing
CONT

Several [internal cooling] systems have been developed that incorporate three basic approaches : liquified gas, super-cold air with water vapor, and air exchange methods.... The air-exchange system is a far simpler method. Here, after the parison has been expanded, plant air is allowed to circulate through the bottle and exhaust. Differential pressure inside the bottle is maintained at 80 psi(550 kPa) to ensure that the parison stays in contact with the mold cavity. Production rate improvements are modest; only 10-15% improvement can be expected.

Key term(s)
  • air exchange system

French

Domaine(s)
  • Plasturgie
CONT

Le temps de refroidissement devient pratiquement proportionnel au carré de l'épaisseur, c'est pourquoi on a songé à compléter le refroidissement par contact avec l'empreinte par un refroidissement interne selon les différents procédés décrits ci-après. a) Renouvellement de l'air de soufflage. On crée une fuite d'air, ce qui permet d'assurer un certain balayage interne permettant d'évacuer une partie de la chaleur, ce qui conduit à une diminution du temps de refroidissement de l'ordre de 5%. b) Balayage au dioxyde de carbone. [...] c) Procédé ISC (Internal Surface Cooling). [...] d) Procédé ALEX. [...]

OBS

Refroidissement par l'intérieur. L'évacuation des calories peut se faire par une circulation de l'air de soufflage. Pour ceci, la canne de soufflage comporte une entrée et une sortie de l'air.

Spanish

Save record 34

Record 35 1997-12-17

English

Subject field(s)
  • Plastics Manufacturing
CONT

Normally, a blow-molded part is cooled externally by the mold cavity, forcing heat to travel through the entire wall thickness. With the poor thermal conductivity of plastic resins, molding cycle times of heavy parts can be considerable. Internal cooling systems are designed to speed the mold cooling time, thus reducing costs by removing some of this heat from the inside. Several systems have been developed that incorporate three basic approaches : liquified gas, super-cold air with water vapor, and air exchange methods.

French

Domaine(s)
  • Plasturgie
OBS

Refroidissement interne des corps creux. Les corps creux à parois minces (bouteilles) ne posent pas de problèmes particuliers et, dans une certaine mesure, les temps de refroidissement sont proportionnels aux épaisseurs. Par contre, lorsque le corps creux comporte des épaisseurs supérieures à 1,5 ou 2 mm, le transfert thermique dans l'épaisseur de la paroi constitue l'obstacle majeur au phénomène de refroidissement, compte tenu surtout des faibles conductivités thermiques des matières thermoplastiques. Le temps de refroidissement devient pratiquement proportionnel au carré de l'épaisseur, c'est pourquoi on a songé à compléter le refroidissement par contact avec l'empreinte par un refroidissement interne selon les différents procédés décrits ci-après. a) Renouvellement de l'air de soufflage [...] b) Balayage au dioxyde de carbone [...] c) Procédé ISC (Internal Surface Cooling) [...] d) Procédé ALEX [...]

Spanish

Save record 35

Record 36 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 36

Record 37 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 37

Record 38 1997-11-26

English

Subject field(s)
  • Printing Processes - Various
  • Plastics Manufacturing
DEF

The cutting of a design or lettering on a hard surface to form a printing surface.

CONT

Clever decorating can make a relatively simple bottle design stand out. All major decorating processes can be used on blow-molded bottles and parts. These include :-Engraving in the mold cavity with artwork or copy.

OBS

Today, often used in a general way to mean any letterpress block-making process, e.g. "photoengraving", "process engraving".

OBS

engraving: term standardized by ISO.

French

Domaine(s)
  • Procédés d'impression divers
  • Plasturgie
DEF

Art de graver un dessin ou des caractères sur une surface dure en vue de sa multiplication par impression.

OBS

De nos jours, le terme englobe tout procédé photomécanique dont le produit est une gravure.

OBS

gravure : terme normalisé par l'ISO.

Spanish

Save record 38

Record 39 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 39

Record 40 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 40

Record 41 1997-10-28

English

Subject field(s)
  • Plastics Manufacturing
CONT

In the common rising mold type of machine, the blow mold rises from below to close around the tube; the blow pin enters from the bottom.

OBS

The [continuous extrusion blow-molding] process has three subcategories : the rising mold method, the rotary method, and the shuttle method. In the rising mold method, the parison is continuously extruded directly above the mold cavity. When it is at the proper length, the mold rises quickly to capture the parison and returns downward to the blow station. After blowing the bottle, the mold opens, the part is removed, and the process repeats.

Key term(s)
  • rising mould machine
  • rising mould type of machine

French

Domaine(s)
  • Plasturgie
CONT

Certaines machines fonctionnent avec un seul moule : après avoir saisi et sectionné le tube sous la tête d'extrusion, le moule est amené sous une canne de soufflage qui s'introduit dans la paraison. Lors de l'ouverture du moule, l'article reste suspendu à la canne de soufflage, tandis que le moule est reconduit sous la tête d'extrusion. Après ouverture du moule, l'article fini, libéré de la canne de soufflage est ébarbé automatiquement et transféré sur un rail de transfert (système Kautex).

Spanish

Save record 41

Record 42 1997-07-29

English

Subject field(s)
  • Casting and Patternmaking (Metal Processing)
DEF

Usually an aqueous emulsion containing various compounds, used to coat the face of the cavity in the casting mold.

Key term(s)
  • mould dressing
  • mould wash

French

Domaine(s)
  • Moulage et modelage des métaux
DEF

Enduit liquide appliqué sur la surface d'un moule métallique ou d'un creuset pour diminuer les chocs thermiques, faciliter l'extraction des pièces ou protéger un creuset.

Spanish

Save record 42

Record 43 1997-03-14

English

Subject field(s)
  • Aluminum
OBS

die casting : A casting process in which molten metal is forced under high pressure into the cavity of a metal mold.

CONT

Metal Alloy provides aluminum die casting ingot to a supplier for processing, who in turn provides its product to the Canadian Engineering Consortia of SNC ... for their hydro-power project in India.

French

Domaine(s)
  • Aluminium

Spanish

Save record 43

Record 44 1996-07-24

English

Subject field(s)
  • Plastics Manufacturing
CONT

Epoxy molds have very poor heat-transfer characteristics... These molds are used to molding RIM prototypes. To do this the RIM chemical system must be formulated with less catalyst to slow down the reaction rate, thereby increasing the required molding cycle time. Use of fast system in epoxy molds may cause spalling on the mold cavity surface because of localized overheating of the cavity surface.

French

Domaine(s)
  • Plasturgie
CONT

Les moules en résine époxyde sont mauvais conducteurs de la chaleur; celle-ci a tendance à s'accumuler en surface, et l'on doit par conséquent procéder avec soin à un refroidissement.

Spanish

Save record 44

Record 45 1993-11-09

English

Subject field(s)
  • Goldsmithing and Silversmithing
  • Casting and Patternmaking (Metal Processing)
CONT

gate : the place where molten metal enters and passes into a mold cavity; it [includes] the pouring basin, sprues, runners.

French

Domaine(s)
  • Orfèvrerie et argenterie
  • Moulage et modelage des métaux
CONT

si la pièce ne peut être coulée pleine on place au centre de la cavité du moule un "noyau" en sable.

Spanish

Save record 45

Record 46 1986-12-01

English

Subject field(s)
  • Welding and Soldering (Metals)
CONT

During sealing of the molds, card board insert must be place over the molds to prevent any foreign material from falling into the mold cavity.

French

Domaine(s)
  • Soudage (Métal)
DEF

Fermeture étanche, au moyen d'argile, d'un tampon de tête de cornue ou d'une porte de chambre de distillation.

OBS

L'opération qui consistait à luter le moule avec une pâte réfractaire pour en assurer l'étanchéité au moment de la coulée, durait jusqu'ici normalement 5 minutes.

OBS

lutage : terme uniformisé par le CN.

Spanish

Save record 46

Record 47 1982-11-18

English

Subject field(s)
  • Metallography
OBS

The ability of molten metal to run into and fill a mold cavity.

French

Domaine(s)
  • Métallographie
OBS

Aptitude d'un métal fondu à remplir la cavité d'un moule.

Spanish

Save record 47

Record 48 1978-01-31

English

Subject field(s)
  • Casting and Patternmaking (Metal Processing)
CONT

The inertia forces of rotation distribute the molten metal into the mold cavities during the centrifugal casting, of which there are three categories : true centrifugal casting, semi-centrifugal casting, and centrifuging. The first two processes produce hollow cylindrical shapes and parts with rotational symmetry, respectively. In the third process the mold cavities are spun at a certain radius from the axis of rotation; the centrifugal force thus increases the pressure in the mold cavity.

French

Domaine(s)
  • Moulage et modelage des métaux
CONT

La coulée par centrifugation consiste à couler l'alliage le long d'un axe autour duquel le moule est animé d'un mouvement de rotation. [La nature du moule] dépend du mode de centrifugation utilisé: centrifugation pure, (...) semi-centrifugation (...), coulée sous pression centrifuge: pour pièces en aciers, fontes ou bronzes ordinaires sans axe de symétrie ou de révolution, pouvant donc être de forme quelconque, creuses ou non, réparties avec équilibre dans le moule (...)

Spanish

Save record 48

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