Polymer brackets Victrex for Comac

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Victrex contributed a combined material/service solution to Comac (Commercial aircraft corporation of China), for the production of polymer brackets for the aircraft floor of its new regional jet ARJ21. The ARJ21 jet is aimed to replace smaller regional aircrafts, enabling more passengers to fly directly between longer distance destinations within China, but could also be used in place of larger aircrafts to increase airlines’ flight frequencies.

Within the ARJ21 aircraft, internal loads are supported by various systems, including structural beams, on which are positioned floor brackets to provide support within a gap between the loaded beams and the aircraft flooring above. The polymer Victrex solution in substitution of aluminum increased production efficiency, thanks to rapid injection molding of the part, increasing efficiency by reducing the weight of the component by 30%. The polymer brackets also allow design improvements that simplify the installation process, offer an economical 30-year life-cycle and have a loading capacity of up to 6.000 N, with a working temperature range of -55°C to 135°C. Beyond supplying high-performing paek polymers, Victrex also provided Comac additional services, including simulation analysis, tools for design optimization and on-site processing support, achieving greater design freedom and easier manufacturing compared to the traditionally aluminum-manufactured brackets.

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