Minimizing Secondary Operations in Injection Molding

Oerlikon HRSflow's GLOW HRS technology is a compact solution for direct injection molding of high-quality parts that prevents halos and enables ideal surface aesthetics. Precise control of the surface temperature minimizes the need for post-molding rework and reduces energy consumption, contributing to a more sustainable process.

Easy to install and with no impact on cycle time, GLOW HRS technology ensures consistently high productivity. From hoods and tailgates to roofs and smart panels, the system adapts seamlessly to a wide range of automotive applications. To further support customers, Oerlikon HRSflow’s R&D Test Lab offers the opportunity to test the technology even with the most challenging polymers.

Using an automotive wheel arch as an example, Oerlikon HRSflow has demonstrated the production of paint-free automotive parts using servo-controlled FLEXflow HRS needle valve technology. The electrical system features three drops from the Ma nozzle series and is integrated into an Inevo reverse mold with a vacuum insert. FLEXflow HRS thus enabled precise, low-stress back-injection of recyclable PP onto a decorative PP film insert from DNP Group, which was placed directly in the mold.

The result is a flawless, fully decorated surface that eliminates the need for downstream operations such as transfer, painting or trimming. The parts leave the mold ready for installation, while their mono-material structure ensures easy recycling without additional reworking. The automotive wheel arch also offers high scratch resistance for long-lasting durability. Moreover, the simple exchange of decorative films allows quick, flexible, and resource-efficient color changes, minimizing waste.

Oerlikon HRSflow | hrsflow.com