RocTool, RJG conduct study on mold heating and cooling technologies

RocTool has now characterized many materials for inclusion in its HD Plastics material database.

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RocTool Inc. (Savoie Technolac, France) worked in conjunction with RJG Inc. (Traverse City, Mich.), a provider in injection molding training, technology, and resources, to show the advantages of RocTool’s technologies including flow improvement, reduced cavity pressure, high surface replication of the mold, and significant gloss improvement. The flow increase with RocTool induction heating technology reportedly delivers design opportunities and pushes the limits in creating thin-wall applications.

RocTool developed a specific spiral mold to calculate the flow length while pressure sensors were implemented by RJG Inc. to assess the capability of RocTool technology to improve mold filling and reduce the drop of pressure. The spiral mold was developed with variable thickness (from 0.5 mm to 1.5 mm) allowing a complete material characterization. RJG’s process monitoring “eDART System” collected the data from the sensors which were implemented behind the ejector pin and located close to the gate and at the end of the fill.

RocTool has now characterized many materials for inclusion in its HD Plastics material database. The company will continue to broaden its material database, evaluating not only targeted commodity resins but also high-performance resins and ultra-polymers. The database will be available on the HD Plastics website by Q3 2017.

“The partnership project provided added value in our ongoing characterization of resins for the HD Plastics material database,” says Mathieu Boulanger, RocTool CEO.

“The company is evaluating a range of resins from various material suppliers. RocTool is now capable of demonstrating the additional benefits of its technology beyond just a cosmetic advantage. RocTool can provide true comparison data for parts produced with RocTool technologies versus those made via conventional injection molding. This information can be very useful and will provide designers with expanded options,” says Boulanger. “We can now bring this unique data directly to the OEM.”