Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

DuPont™ Vespel® adds to its portfolio of solutions to boost efficiency, drive out costs in ‘hot, dirty’ operating environments

06.04.2009
The DuPont™ Vespel® parts and shapes business expands its high performance portfolio with Vespel® SP-2515 polyimide parts, which can improve dimensional control, reduce component weight and drive cost out in fluid- and motion-control systems.

“This new product supports our strategy to put science to work in ways that help reduce oil consumption and greenhouse gas emissions,” said Dave Ritchey, Vespel® global transportation marketing director.


Photo: DuPont
DuPont™ Vespel® introduces Vespel® SP-2515 polyimide parts, which can improve dimensional control, reduce component weight and drive out cost in fluid- and motion-control systems.

“Vespel® SP-2515 – which can improve efficiency by reducing friction, weight and cost – is one of several new product and design innovations from Vespel®, which accesses the vast DuPont network of global R&D and application development centres to meet specific market needs.”

Parts made from Vespel® SP-2515 demonstrate a low coefficient of thermal expansion to better match metal, excellent wear properties against aluminium and a low coefficient of friction – all of which can help improve dimensional control, reduce weight and increase component efficiency for lower total system cost.

“The metal friendly nature of Vespel® SP-2515 enables the use of lightweight aluminium as a mating surface for rotating or moving parts,” said Ritchey. “The good wear of Vespel® SP-2515 can eliminate heavy, expensive steel inserts, used to protect the aluminium parts from aggressive materials, such as cast iron or filled thermoplastics.”

Additionally, parts made of Vespel® SP-2515 offer high thermal conductivity – more than four times higher than parts made of Vespel® SP-21 – to help remove heat from critical bearing surfaces, which can lead to cooler running parts and higher PV (pressure x velocity) limits.

Vespel® SP-2515 is initially targeted for the global automotive and commercial vehicle industry where tight tolerances, durability and improvements in energy efficiency are demanded.

Recently commercialized in seal rings, which demand low friction, extreme tolerance control over a broad temperature range, and long life, Vespel® SP-2515 has demonstrated more consistent leakage control than cast iron and other polymeric alternatives. The ability to ‘fine tune’ leakage rates over a broader temperature range helps deliver an efficient and smooth operating transmission and can also lead to a smaller oil pump – which helps reduce parasitic energy losses.

“While extensive testing has shown Vespel® SP-2515 improves the performance of transmission seal rings, we also see attributes which are beneficial more broadly, such as in hydraulic valves, thrust washers and bushings in powertrain applications,” said Ritchey.

Additionally, Vespel® SP-2515 performs very well in environments where contamination particles like carbon, dirt or metal debris can cause rapid failure of components – an extremely important feature in engine components like EGR (exhaust gas recirculation) bushings and turbo linkages where dirt is a constant problem.

For more than 40 years, the Vespel® parts and shapes business has delivered ‘big science, part by part, faster than ever before’ through high-performance, cost-effective solutions for critical fluid- and motion-control systems. In automotive and commercial vehicles, Vespel® parts are used to manage friction in powertrain applications ranging from emission components, variable valve systems, turbochargers and air induction modules. In driveline applications Vespel® parts excel in seal rings, thrust washers and fork pads in automatic, continuously variable, and manual transmissions, transfer cases and torque converters. In heavy-duty off-road transmissions and hydraulic motors, Vespel® seal rings and thrust washers deliver long life and cost-effective solutions to meet short lead time demands and low-volume production requirements.

For more about Vespel® SP-2515, visit tryvespel.dupont.com. For more information about DuPont™ Vespel®, visit vespel.dupont.com.

DuPont is a science-based products and services 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 and food; building and construction; communications; and transportation.

The DuPont Oval Logo, The miracles of science™, DuPont™ and Vespel® are registered trademarks or trademarks of E. I. du Pont de Nemours and Company or its affiliates.

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

More articles from Materials Sciences:

nachricht New biomaterial could replace plastic laminates, greatly reduce pollution
21.09.2017 | Penn State

nachricht Stopping problem ice -- by cracking it
21.09.2017 | Norwegian University of Science and Technology

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: The pyrenoid is a carbon-fixing liquid droplet

Plants and algae use the enzyme Rubisco to fix carbon dioxide, removing it from the atmosphere and converting it into biomass. Algae have figured out a way to increase the efficiency of carbon fixation. They gather most of their Rubisco into a ball-shaped microcompartment called the pyrenoid, which they flood with a high local concentration of carbon dioxide. A team of scientists at Princeton University, the Carnegie Institution for Science, Stanford University and the Max Plank Institute of Biochemistry have unravelled the mysteries of how the pyrenoid is assembled. These insights can help to engineer crops that remove more carbon dioxide from the atmosphere while producing more food.

A warming planet

Im Focus: Highly precise wiring in the Cerebral Cortex

Our brains house extremely complex neuronal circuits, whose detailed structures are still largely unknown. This is especially true for the so-called cerebral cortex of mammals, where among other things vision, thoughts or spatial orientation are being computed. Here the rules by which nerve cells are connected to each other are only partly understood. A team of scientists around Moritz Helmstaedter at the Frankfiurt Max Planck Institute for Brain Research and Helene Schmidt (Humboldt University in Berlin) have now discovered a surprisingly precise nerve cell connectivity pattern in the part of the cerebral cortex that is responsible for orienting the individual animal or human in space.

The researchers report online in Nature (Schmidt et al., 2017. Axonal synapse sorting in medial entorhinal cortex, DOI: 10.1038/nature24005) that synapses in...

Im Focus: Tiny lasers from a gallery of whispers

New technique promises tunable laser devices

Whispering gallery mode (WGM) resonators are used to make tiny micro-lasers, sensors, switches, routers and other devices. These tiny structures rely on a...

Im Focus: Ultrafast snapshots of relaxing electrons in solids

Using ultrafast flashes of laser and x-ray radiation, scientists at the Max Planck Institute of Quantum Optics (Garching, Germany) took snapshots of the briefest electron motion inside a solid material to date. The electron motion lasted only 750 billionths of the billionth of a second before it fainted, setting a new record of human capability to capture ultrafast processes inside solids!

When x-rays shine onto solid materials or large molecules, an electron is pushed away from its original place near the nucleus of the atom, leaving a hole...

Im Focus: Quantum Sensors Decipher Magnetic Ordering in a New Semiconducting Material

For the first time, physicists have successfully imaged spiral magnetic ordering in a multiferroic material. These materials are considered highly promising candidates for future data storage media. The researchers were able to prove their findings using unique quantum sensors that were developed at Basel University and that can analyze electromagnetic fields on the nanometer scale. The results – obtained by scientists from the University of Basel’s Department of Physics, the Swiss Nanoscience Institute, the University of Montpellier and several laboratories from University Paris-Saclay – were recently published in the journal Nature.

Multiferroics are materials that simultaneously react to electric and magnetic fields. These two properties are rarely found together, and their combined...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

“Lasers in Composites Symposium” in Aachen – from Science to Application

19.09.2017 | Event News

I-ESA 2018 – Call for Papers

12.09.2017 | Event News

EMBO at Basel Life, a new conference on current and emerging life science research

06.09.2017 | Event News

 
Latest News

Rainbow colors reveal cell history: Uncovering β-cell heterogeneity

22.09.2017 | Life Sciences

Penn first in world to treat patient with new radiation technology

22.09.2017 | Medical Engineering

Calculating quietness

22.09.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>