Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Ski base plate of DuPont™ Hytrel® improves comfort and handling

11.02.2008
Skis produced by Austrian manufacturer Atomic for use in the more demanding forms of the sport, such as giant slalom and downhill, are now equipped with base plates made of DuPont™ Hytrel® thermoplastic polyester elastomer.

The engineering polymer facilitates the particularly cost-efficient production of the thick-walled parts, and, due to its high impact strength, even at temperatures as low as -35 °C, provides a high degree of safety.


Photo: DuPont
The base plate, located between the boot and the ski, is injection-moulded from flexible yet stiff DuPont™ Hytrel® for increased comfort, precise ski control and long-term usage.

Creating the link between the boot of the skier and his ski, the base plate plays a major role in both comfort and handling. “The skis equipped with the new base plates made of Hytrel® are particularly smooth-running, “ explains Harald Scheikl, assistant manager R&D Bindings at Atomic. “Thanks to the pronounced damping characteristics of the material, impacts are better absorbed than with conventional plates made from polyolefin-based polymers. Moreover, the high stiffness of this particular grade of Hytrel® provides the skier with precise directional control.”

Prior to the product upgrade, the base plates were machined from semi-finished parts, which cost both money and time. “As part of this innovation, we wanted to introduce the more cost-efficient injection-moulding process, yet retain the dimensions of the original plates,” continues Scheikl. “This required us to achieve wall-thicknesses of up to 7 millimetres and long flow distances of up to 300 millimetres. DuPont recommended the use of Hytrel® and provided support in both part design and optimisation of the injection-moulding process. As a result we can produce moulded parts with a very high degree of dimensional accuracy during very short cycles. In turn, this has led to a significant reduction of our production costs.”

A further property of Hytrel® noted by Scheikl is its high dimensional stability over a broad temperature range. This facilitates the exact assembly of the binding parts and ensures that only low levels of internal strain occur within the base plate regardless of temperature change. In combination with the high flexural fatigue strength of Hytrel®, this facilitates long-term usage without damage to the base plate. Following Atomic’s favourable experience with the material during both manufacture and deployment of the initial base plate, the company is developing further models made of Hytrel® for other forms of ski-sport applications.

Atomic Austria GmbH is a subsidiary of AMER Sports Corporation, of Helsinki, Finland. Amer, with 6 800 employees, is one of the world’s leading sports-equipment companies, with its internationally recognised brands Atomic, Wilson, Suunto, Precor and (since May 2005) Salomon. Annual turnover is €1.7 billion. The Atomic brand produces equipment for nordic and alpine skiing and for snowboarding, Dynamic for alpine skiing, Volant for high-segment skiing and Oxygen for snowboarding. Atomic and Salomon together produced about 1.5 million skis for the 2005/2006 season, or about 30 % of the world market.

The DuPont Engineering Polymers business manufactures and sells Crastin® PBT and Rynite® PET thermoplastic polyester resins, Delrin® acetal resins, Hytrel® thermoplastic polyester elastomers, DuPont™ ETPV engineering thermoplastic vulcanizates, Minlon® mineral-reinforced nylon resins, Thermx® PCT polycyclohexylene dimethylterephthalate, Tynex® nylon filaments, Vespel® parts and shapes, Zenite® liquid crystal polymers, Zytel® nylon resins and Zytel® HTN high-performance nylons. These products serve global markets in the aerospace, appliance, automotive, consumer, electrical, electronic, health-care, industrial, sporting goods and many other diversified industries.

DuPont is a science company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture, nutrition, electronics, communications, safety and protection, home and construction, transportation and apparel

The DuPont Oval Logo, DuPont™, The miracles of science™ and all product names denoted with ® are registered trademarks or trademarks of DuPont or its affiliates.

Horst Ulrich Reimer | Du Pont
Further information:
http://www.dupont.com

More articles from Materials Sciences:

nachricht Goodbye, silicon? On the way to new electronic materials with metal-organic networks
17.10.2018 | Max-Planck-Institut für Polymerforschung

nachricht High entropy alloys hold the key to studying dislocation avalanches in metals
16.10.2018 | University of Illinois College of Engineering

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Goodbye, silicon? On the way to new electronic materials with metal-organic networks

Scientists at the Max Planck Institute for Polymer Research (MPI-P) in Mainz (Germany) together with scientists from Dresden, Leipzig, Sofia (Bulgaria) and Madrid (Spain) have now developed and characterized a novel, metal-organic material which displays electrical properties mimicking those of highly crystalline silicon. The material which can easily be fabricated at room temperature could serve as a replacement for expensive conventional inorganic materials used in optoelectronics.

Silicon, a so called semiconductor, is currently widely employed for the development of components such as solar cells, LEDs or computer chips. High purity...

Im Focus: Storage & Transport of highly volatile Gases made safer & cheaper by the use of “Kinetic Trapping"

Augsburg chemists present a new technology for compressing, storing and transporting highly volatile gases in porous frameworks/New prospects for gas-powered vehicles

Storage of highly volatile gases has always been a major technological challenge, not least for use in the automotive sector, for, for example, methane or...

Im Focus: Disrupting crystalline order to restore superfluidity

When we put water in a freezer, water molecules crystallize and form ice. This change from one phase of matter to another is called a phase transition. While this transition, and countless others that occur in nature, typically takes place at the same fixed conditions, such as the freezing point, one can ask how it can be influenced in a controlled way.

We are all familiar with such control of the freezing transition, as it is an essential ingredient in the art of making a sorbet or a slushy. To make a cold...

Im Focus: Micro energy harvesters for the Internet of Things

Fraunhofer IWS Dresden scientists print electronic layers with polymer ink

Thin organic layers provide machines and equipment with new functions. They enable, for example, tiny energy recuperators. In future, these will be installed...

Im Focus: Dynamik einzelner Proteine

Neue Messmethode erlaubt es Forschenden, die Bewegung von Molekülen lange und genau zu verfolgen

Das Zusammenspiel aus Struktur und Dynamik bestimmt die Funktion von Proteinen, den molekularen Werkzeugen der Zelle. Durch Fortschritte in der...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Conference to pave the way for new therapies

17.10.2018 | Event News

Berlin5GWeek: Private industrial networks and temporary 5G connectivity islands

16.10.2018 | Event News

5th International Conference on Cellular Materials (CellMAT), Scientific Programme online

02.10.2018 | Event News

 
Latest News

Elucidating cuttlefish camouflage

18.10.2018 | Life Sciences

Robot-assisted sensor system for quality assurance of press-hardened components

17.10.2018 | Trade Fair News

Sensory Perception Is Not a One-Way Street

17.10.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>