WOCO SELECTS STANYL® DIABLO FOR CHARGE AIR DUCT RESONATOR

Woco Industrietechnik GmbH, a leading supplier of intelligent automotive solutions including Acoustics, Actuators and Polymer systems, has selected Stanyl® Diablo OCD2100 for its latest Charge Air Duct Resonator, intended for dampening noise in the charge air system.

Stanyl Diablo OCD2100 is the first member of a next generation family of Stanyl PA46 grades that offer a revolutionary improvement in long term thermal stability. This technology, developed and patented by DSM, extends the functional life of components well beyond the limits of other high temperature polyamides. By limiting thermal oxidative breakdown, Stanyl Diablo withstands more than 5,000 hours temperature exposure up to 220°C with less than 15% loss in mechanical properties.

Frank Ellenbrand, WOCO Purchasing Raw Materials says: “WOCO supports the industry’s drive to enhance the level of acoustic comfort and safety while protecting the environment by decreasing noise and increasing fuel economy. We found that thanks to its unique long time high heat ageing performance, Stanyl Diablo OCD2100 was the only material we could approve for temperatures above 200°C for 3000 hours.”

Requirements for Under the Bonnet (UTB) applications are changing constantly. Environmental requirements, EURO V and VI legislation and the call for reduced fuel consumption have resulted in significant changes, e.g. the use of smaller engines with higher turbo pressures and EGR (Exhaust Gas Recirculation). As a consequence, automobile UTB components such as air ducts, air intake manifolds and charge air cooler end-caps are exposed to continuously rising operating temperatures. With increasingly critical temperature and tougher life time requirements, long term service life of components made from current thermoplastics can be at risk.

Christian Kilgus, Business Development Manager for DSM Engineering Plastics says: “Long time high heat ageing performance for temperatures up to 220°C and more than 5000 hours are now increasingly common for UTB applications. Stanyl Diablo OCD2100 outperforms current high heat resins on high temperature stability, but also on weldability, weld strength and the weld’s long term heat stability. Part design and function can be reached more easily and, more importantly, UTB part reliability can be guaranteed for the lifetime required.”

Stanyl materials are easy to process. During injection molding, tool temperatures of 80°C and melt temperatures around 300°C are normally used. Short cycle times can be achieved to reduce system costs.

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