Injection molding simulation with Hasco TempFlex hoses

Hasco Temp-Flex-Schläuche in Cadmould

Now possible: Simulation of cooling with Hasco TempFlex hoses

The new simulation software, Cadmould Version 11 from Simcon with its vastly extended 3D T-Box, now also calculates mold cooling with Hasco TempFlex hoses. The conformal routing of the cooling fluid in the injection mold can now be optimized at an early stage in a cost-efficient manner.

Würselen. – Correct temperature control of the mold is decisive for cycle time and part quality in plastics injection molding. The Cadmould modular simulation software from Simcon can be used to precisely calculate the cooling of the mold at the planning stage already and configure it in the optimum manner. With the current Version 11, this can now be achieved for Hasco TempFlex hoses too. In this way, more effective and uniform temperature control can be achieved with fewer test loops, thus saving time and money.

TempFlex function added to Cadmould 11

With this extended function, Simcon is now enabling a large number of users to effectively deploy selective mold temperature control. Contrary to the case with simple cooling channels, Hasco TempFlex hoses allow conformal cooling of complex plastics geometries too. More gentle deflections of the temperature control medium reduce pressure loss and increase flow rates. Complex parts are cooled more rapidly and with less warpage – ensuring a higher production capacity and improved part quality. The hoses also eliminate the need for complex sealing of the mold planes, as is necessary with cooling holes that extend over more than one mold plate.

“When cooling water flows through a hole and is in direct contact with the mold wall, the transfer of heat naturally differs from cases where the water first comes into contact with the wall of a hose”, explains Angela Kriescher, product manager at Simcon. “This temperature behavior – including the influence of the hose diameter and the flow rate, as well as the length of the cooling channel and the resulting pressure loss – is now taken into account by Cadmould 11 with just a single click.” The vastly extended “T-Box” module automatically determines the coefficient of heat transfer and depicts the temperature at each individual point of the system. Users also have the option of varying all the different parameters, such as the cooling channel layout, flow direction, parting surfaces and materials, so as to configure an optimum injection mold.

„Wenn Kühlwasser durch eine Bohrung strömt und direkten Kontakt zur Werkzeugwand hat, ist der Wärmeübergang natürlich ein anderer, als wenn das Wasser erst eine Schlauchwand berührt“, erklärt Angela Kriescher, Produktmanagerin bei Simcon. „Dieses Temperaturverhalten – inklusive des Einflusses von Schlauchdurchmesser und Durchflussmenge sowie der Länge des Kühlkanals und des dabei entstehenden Druckverlustes – berücksichtigt Cadmould 11 jetzt mit nur einem Klick.“ Das stark erweiterte Modul „T-Box“ ermittelt den Wärmeübergangskoeffizienten automatisch und stellt die Temperaturen an jedem Punkt des Systems dar. Anwender haben zudem die Möglichkeit alle Parameter wie Anordnung der Kühlungskanäle, Fließrichtung, Trennflächen oder Werkstoffe zu variieren, um ein optimales Spritzgieß-Werkzeug zu gestalten.

More efficient workflow for mold planning

In the past, when TempFlex hoses were used, the parting surfaces in the molds were determined by trial and error and the cooling channels then milled and the hoses placed inside them. Cadmould 11 now makes the procedure considerably more efficient: to depict the temperature profile in the mold, it is sufficient to have rough sketches and drawings at the initial stage of planning. “The software calculates the flow of the cooling fluid and, from the heat exchange with the mold, works out the current temperature of the cooling medium”, says Kriescher. This then ensures high-precision simulation of mold cooling.

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