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Metal Casting Technologies : September 2008
PRODUCTS Revolutionary portable Exoscan FTIR Spectrometer A2 Technologies’ hand-held FTIR system Exoscan™, has the performance capability to provide accurate measurement of anodization thickness and type on large parts, without the need to dissemble or otherwise modify the part for testing. In a new application note entitled “Metal Coatings Analysis Using the Exoscan Hand Held FTIR”, the system demonstrates why it is ideal for non-destructive analysis of samples that are too large to bring to the laboratory or too valuable to require a small portion to be removed for analysis. Weighing less than seven pounds, the portable, hand-held A2 Technologies Exoscan allows even large complex parts to be directly measured in any orientation eliminating the need for sample disassembling or destruction. Results demonstrate that by using the high performance external reflectance sampling interface, Exoscan can identify and quantify even the thinnest anodized coatings as well as paint and primer coatings on metal surfaces. Designed for extreme loads The new continuous spinner blast machine from Rösler has a working dimension (envelope) of 6 x 6 x 5 m (W x L x H). It is designed for the heavy-duty operating requirements prevailing in a foundry. The machine housing is made from wear resistant manganese steel. In addition the critical wear areas are lined with replaceable manganese steel plates. Seven high performance Hurricane blast wheels, type H 42, with 22 kW power each guarantee optimum blast intensity and coverage for all-round blast cleaning of the castings. To achieve an optimum blast pattern, the Rösler engineers determined the blast wheel arrangement by utilizing a 3D simulation of the blast process. The raw parts are transported to the shot blast machine with the bridge crane of the fettling department. Maximum batch weight is 20,000 kg. The parts are travelling through the blast zone in 3 fixed positions. In each position the parts undergo a rotational movement. This ensures that all areas of the part – irrespective of how complicated its geometry might be -- are reached by the blast stream, be it for desanding or the subsequent general blast cleaning. T: + 49 9533 924 802 E: email@example.com W: www.rosler.com E: firstname.lastname@example.org T: +1 203.312.1106 W: www.a2technologies.net METAL Casting Technologies September 2008 99