TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

Special screw injection process for moulding thick-walled articles, developed by Anker and Eckert und Ziegler.  3, record 1, English, - intrusion%20moulding

Record number: 1, Textual support number: 1 CONT

Intrusion molding. When heavy sections are molded or when the shooting capacity of the machine is not adequate, intrusion molding can be used, where the screw turns continually and fills the cavity directly. When the cavity is filled, a cushion is extruded in front of the plunger, which then comes forward to supply the needed injection pressure.  5, record 1, English, - intrusion%20moulding

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

Intrusion. But : fabriquer des pièces très épaisses, pour lesquelles la capacité de plastification de la machine est trop faible. Principe : Le dispositif de plastification extrude la matière dans le moule et le remplit. La compression de la matière peut se faire de 2 manières : -Par la pression d'extrusion de la machine (utilisation d'une extrudeuse, ou blocage du recul de la vis d'une presse d'injection). -Par la pression d'injection de la presse. Dans ce cas, la machine plastifie de la matière jusqu'à un dosage voulu. Ensuite, injection de la matière, comme dans le cas d'une injection classique.  3, record 1, French, - intrusion

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 OBS

... preplasticizing machine. Of the equipment in use today, 95% is preplasticizing; either with a reciprocating screw or a screw-pot. In a reciprocating screw the melted material is collected in front of the screw, which continues to move backward against a controlled pressure as more material is melted. The area where the melted material is collected corresponds to the pot in a two-stage machine. When the screw is pushed forward by the hydraulic injection cylinder(s), a check valve(nonreturn valve) is closed. At this time the screw and nonreturn valve act like a plunger.  1, record 2, English, - two%2Dstage%20screw%2Dplunger%20machine

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 OBS

There are about 80, 000 injection-molding machines in about 8, 000 plants in the United States.... About 95% of the machine are either reciprocating screw or two-stage screws. The balance are plunger machines.  4, record 3, English, - plunger%20injection%2Dmolding%20machine

Record number: 3, Textual support number: 2 OBS

The plunger machine heats the material by conduction. Since plastic is an insulator, the material next to the outside wall is much hotter than that nearer the center. The laminar flow in the plunger-type cylinder does not reduce the temperature differential. ... The plunger machine in now only used to produce special effects (mottling, for example); the two-stage plunger machine is obsolete. It is used in thermoset IM for glass-reinforced polyester because it reduces glass fiber breakage.  4, record 3, English, - plunger%20injection%2Dmolding%20machine

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

La presse à piston, celle décrite dans le principe, est la plus ancienne. La matière fondue est poussée du pot d'injection au moule par un piston (analogie avec le moulage des alliages légers sous pression). L'avantage principal réside dans la simplicité de la machine mais la matière, pour un diamètre de fût important, reste insuffisamment plastifiée puisqu'il existe un gradient de température entre l'axe et la paroi du fût.  1, record 3, French, - presse%20%C3%A0%20piston

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 OBS

There are about 80, 000 injection-molding machines in about 8, 000 plants in the United States.... About 95% of the machine are either reciprocating screw or two-stage screws. The balance are plunger machines.  3, record 4, English, - screw%2Dinjection%20molding%20machine

Record number: 4, Textual support number: 2 OBS

... preplasticizing machine. Of the equipment in use today, 95% is preplasticizing; either with a reciprocating screw or a screw-pot. In a reciprocating screw the melted material is collected in front of the screw, which continues to move backward against a controlled pressure as more material is melted. The area where the melted material is collected corresponds to the pot in a two-stage machine. When the screw is pushed forward by the hydraulic injection cylinder(s), a check valve(nonreturn valve) is closed. At this time the screw and nonreturn valve act like a plunger.  3, record 4, English, - screw%2Dinjection%20molding%20machine

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

La machine la plus utilisée est la presse à vis-piston. On parle alors de préplastification; en effet la vis assure ici deux fonctions : -fonction vis en tournant sur son axe : plastification de la matière de façon homogène, -fonction piston en avançant le long de son axe : matière poussée dans le moule par l'extrémité de la vis (qui joue le rôle de piston).  1, record 4, French, - presse%20%C3%A0%20vis%2Dpiston

Record 4,  Textual support,  Spanish