Molded thermoset resin hood replaces steel hood assembly.(Polymers/Ceramics)

Advanced Materials & Processes,  August, 2003  

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A lightly crosslinked olefinic thermoset polymer that is reaction injection molded(RIM) into a one-piece hood has replaced an assembly of metal parts in this John Deere tractor, reports Metton Europe, Dusseldorf, Germany. Made of Metton Liquid Molding Resin, the hoods for the six-cylinder tractors weigh 44 lb.

The metal hood was an assembly of four sections that required costly finishing operations. The Metton hood is a single piece, with metal reinforcement brackets on the underside for attachment to the front-end grille section and to the gas-spring mechanism that holds the hood ...

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