Echo - PE-HD, PP - Ravago Manufacturing Americas

Kunststoffe international, 2005-11-21, Automotive Glazing: Clear Prospects
...glazing in the vehicle body. Alongside joint activities on improving current adhesive systems, work is also under way on alternative mounting solutions, including "intelligent" edge zones with integrated snap-fitting fasteners. Resounding Echo The results of all these development projects are meeting with a resounding echo from eminent vehicle manufacturers. Initial pilot applications are already "en route". GE Advanced Materials and Exatec are conducting a comprehensive test p...

Kunststoffe international, 2005-11-21, Interview with Dr. K. Bourdon: “We Need to Strengthen our Corporate Identity”
...en one does something like that as a German. As though everyone expected I would force through the Ferromatik name. When I did the opposite, the staff thought it a good move and were enthusiastic. This decision also found a positive echo from customers. Kunststoffe: How much is the recovery of the US market contributing to the eased situation? Bourdon: Milacron was hit excessively by the market collapse, because the company still does most of its business in the USA. To survive through this har...

Kunststoffe international, 2005-11-21, Polymer Characterisation by Means of Microwaves
...boundary and bonded surfaces of the specimen can be seen. In the three-dimensional view, they are apparent as elongated parallel hills. The reflections at the adhesive surfaces are caused by the higher material density prevailing there. The biggest echo (No. 1 in Fig. 4) is the incident echo at the air-foam boundary surface. Echo No. 5 is partly split into two echoes, since the corresponding adhesive layer was thicker than the others (approx. 2 mm thick). The echoes become ever smaller with incr...

Kunststoffe international, 2005-11-21, Vehicle Acoustics: Reducing Noise Development in Vehicles
...rameters (base polymer, nature and content of fillers, condition, temperature, frequency, age, etc) and makes it possible to log and classify polyamide-based materials that have been treated differently. Rhodia has developed an arrangement of echo chambers for measuring acoustic transparency, i.e. the passage of sound through a sample or component (Fig. 5). The measuring method is based on the theory of Sabine quoted in reference [2]. The experimental apparatus and boundary conditions employed ...

Kunststoffe international, 2006-04-24, Melamine Resin Foam: Lightweight, Versatile All-rounder
...eilings. In the mid- to high-frequency range, excellent room sound absorption can be achieved, even with thin, flat foam layers. As a result of their sound-absorbing properties, ceiling and wall elements made from melamine resin foam reduce echo caused by multiple reflection from hard reverberant surfaces. This leads to considerably better speech intelligibility in assembly rooms or offices and provides pleasant acoustics for recording and playing pieces of music in recording studios or concert...

Kunststoffe international, 2010-04-20, On the Threshold of Industrial Application
...o determine the required material thickness. However, the thickness of the sample can also be obtained directly from the THz measurement data by measuring the time of flight of the THz pulses reflected at the boundary surfaces of the sample (echo pulses) and sophisticated data evaluation. A new algorithm developed in the THz Systems Group, compared to conventional solutions, provides extremely precise material parameters and thickness information with a precision of a few microns [7]. An iterati...

Kunststoffe international, 2013-02-22, Reliable and Sustainable Melt-Pressure Measurement
...nsor. Thanks to direct sensing technology, it contains no mercury, gallium or oil. As a result there is nothing to leak or decompose, and it is therefore fully compliant with the European Directive on Restriction of Hazardous Substances (RoHS). The Echo pressure transducers can be used for general-purpose applications in extrusion. They measure pressures from 0–1,500 to 0–10,000 psi with an accuracy to within ±0.5 %. They are largely clad with stainless steel to withstand rusting. The diaphragm ...

Kunststoffe international, 2014-11-26, Non-Destructive Testing of Fiber Composites
...many test problems is air-coupled ultrasound, since it does not need a coupling agent and the sound pulse is instead transmitted directly into the part via the air. At the IKT, various excitation configurations, such as transmission or pulse echo, are used. Air-coupled ultrasound scans allow the mechanical properties of a part to be positionally accurately imaged. Figure 11 shows a schematic scan construction and the result of a delamination.The worse acoustic adaptation between the solid and th...