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Technical Paper
Frank Friedrich
While the microcellular urethane is widely known in the automotive industry for its use in jounce bumpers, its use in Noise Vibration Harshness (NVH) applications is often not as well recognized. Even though there are some NVH parts in the market, rubber still dominates it. The objective of this paper is to demonstrate the material properties of MCU and their relevance for NVH applications in chassis and suspension components. It will also demonstrate the importance of package design to suit the use of the MCU material. This is especially important to not only achieve the best performance but also keep overall cost and weight under control. Several application types will be introduced with general design suggestions. A detailed design guideline for these applications is not part of this paper. Each application has a large variety of parameters to be considered in the design. They need to be selectively applied based on customer performance targets.
Technical Paper
Stephen Johnson, Peter Croswell, Michael Smith
Abstract “Zoning” a catalytic converter involves placing higher concentrations of platinum group metals (PGM) in the inlet portion of the substrate. This is done to optimize the cost-to-performance tradeoff by increasing the reaction rate at lower temperatures while minimizing PGM usage. A potentially useful application of catalyst zoning is to improve performance using a constant PGM mass. A study was performed to assess what the optimum ratio of front to rear palladium zone length is to achieve the highest performance in vehicle emission testing. Varying the zone ratio from 1:1 to 1:9 shows a clear hydrocarbon performance optimum at a 1:5.66 (15%/85%) split. This performance optimum shows as both a minimum in FTP75 non-methane organic gas (NMOG) emissions as well as a minimum in hydrocarbon, carbon monoxide, and nitrogen oxide light-off temperature. Overall, an improvement of 18%, or 11 mg/mi of combined NMOG+NOx emissions was obtained without using additional PGM.
Technical Paper
Chul S Lee, Werner-Wilhelm Kraft
In this study the surface of the bodies being impacted against each other are treated with special speckled paints. A stereophotogrammetric system employing two high speed cameras tracks x,y,z coordinate values during impact. The data is then converted to transient local deformation vectors and strain tensors of the local area on the plastics component being impacted. The camera can also capture displacement vectors of an impactor, a guided or free-flight projectile. Various measurement signals on the projectile and parts are fed into signal processors. These raw data are then processed by a software, specially developed by BASF, for various output data that can be correlated with the corresponding output from the CAE (Computer Aided Engineering) simulations, such as energy during crash processes, real time history of stress and strain on the plastic components.
Already a producer of other materials for batteries, BASF will add electrolytes for lithium-ion batteries to its portfolio. The German company's first products will be commercially available by year's end.
Intended to achieve Platinum status in U.S. Green Building Council program, the new building incorporates 30 BASF technologies and is projected to use 20% less energy than would a building made with conventional construction technologies.
PSA Peugeot Citroën worked with chemical company BASF and Swiss company Rehau on the development of the Citroën Cactus’s UV-stable thermoplastic polyurethane (TPU) exterior detailing.
BASF, Voestalpine, and Bekaert are working together to develop steel-cord-reinforced injection molded parts that the companies believe will make a significant contribution to vehicle safety.
Plastic composite parts outnumber bio-based material vehicle applications, but "green" projects are making inroads by overcoming various hurdles.
Working with Volkswagen, BASF created a front-end carrier for the new Golf Mk. VII that saves weight, assembly time, and costs. The carrier uses only plastic, eliminating the use of sheet steel parts.
A lightweight composite material shaped by a unique assembly technique forms a grille opening reinforcement designed specifically for the high-performance 2016 Ford Shelby GT350 Mustang.
The plastic engine support is said to offer acoustic and weight-saving benefits compared to aluminum.
Supplier innovations are central to winning the ongoing battle with NVH—noise, vibration and harshness.
Basotect TG melamine foam from BASF is used for the acoustic layer in Volkswagen EA888 engine covers.
BASF offers low-emissions Acrodur Power 2750 X binder for lightweight automotive composites with integrated functions.
BASF basecoats' XSpark, a new automotive OEM special-effect coating, contains very fine glass particles that reflect light with greater precision, thus creating a pronounced sparkle.
Ultraform N2320 C from BASF is a polyoxymethylene (POM; polyacetal) plastic that contains carbon nanotubes.
German materials company to exhibit new and existing products at the K 2010 show in Düsseldorf at the end of October.
Many of the key issues currently affecting the passenger-car industry are impacting the commercial-vehicle industry as well. Likewise, a good many of the technologies suppliers come up with for one industry can also benefit the other. That is indeed the case with BASF and some of its material solutions that were on display at September’s IAA Commercial Vehicles show in Hannover, Germany.
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