6. Choice of control fluid

Once the control channels have been designed, the choice of fluid and its flow rate determine the quality of cooling.

6.1 Thermal performance of control fluids

The efficiency of heat exchange in a tool depends directly on the choice of fluid. and thermal properties, as shown in table 5 . The control fluids most commonly used to cool plastic part forming tools are water and oil. CO ₂ can also be used to cool...

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Bibliography

(1) - XU (H.), KAZMER (D.) - A stiffness criterion for cooling time estimation. - IPP, vol. 14, N° 1, pp. 103-108 (1999).
(2) - DELAUNAY (D.), LE BOT (P.), FULCHIRON (R.), LUYÉ (J.-F.), RÉGNIER (G.) - Nature of contact betwween polymer and mold. Part 1 :...

Patents

A. Agazzi, V. Sobotka, R. Le Goff, D. Garcia, and Y. Jarny, "MCOOL process: Process for forming channels in tooling, tooling formed with such a process and product, computer program implementing such a process" FR 2976201, 2011.