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internal cooling system [1 record]
Record 1 - internal organization data 1997-12-17
Record 1, English
Record 1, Subject field(s)
- Plastics Manufacturing
Record 1, Main entry term, English
- internal cooling system
1, record 1, English, internal%20cooling%20system
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 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. 1, record 1, English, - internal%20cooling%20system
Record 1, French
Record 1, Domaine(s)
- Plasturgie
Record 1, Main entry term, French
- système de refroidissement interne
1, record 1, French, syst%C3%A8me%20de%20refroidissement%20interne
proposal, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 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 [...] 2, record 1, French, - syst%C3%A8me%20de%20refroidissement%20interne
Record 1, Spanish
Record 1, Textual support, Spanish
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