Method to form a high strength moulded product

Details Method to form a high strength moulded product Method to form a high strength moulded product

B - Operations, Transporting

27

N

B27N 5/00 (2006.01) B27N 3/04 (2006.01)

Patent

CA 2570132

A method to form a high strength moulded product is provided. The method begins by preparing a mouldable composition. The mouldable composition comprises between about 40 to 60 wt % of a fibre mixture and between about 15 to 45 wt % of an adhesive. A mould cavity is loaded with the mouldable composition up to about 90 % of the capacity of the mould cavity before applying a packing pressure of between about 435 to 870 psi to the mouldable composition. A predetermined clearance of between about 0.1 to 0.5 mm is maintained between a first mould part defining the mould cavity and a second mould part. The moulded product is removed from the mould cavity when the mouldable composition is substantially cured.

Il est prévu un procédé pour former un produit moulé de haute résistance. Le procédé commence par la préparation d'une composition plastique. La composition plastique comprend entre 40 et 60 % en poids d'un mélange fibreux et entre environ 15 à 45 % en poids d'un adhésif. Une cavité de moule est chargée de la composition plastique jusqu'à 90 % de la capacité de la cavité de moule avant d'appliquer une pression de compactage comprise entre environ 435 et 870 psi à la composition plastique. Un écart prédéterminé compris entre environ 0,1 et 0,5 mm est maintenu entre une première partie de moule définissant la cavité de moule et une seconde partie de moule. Le produit moulé est retiré de la cavité de moule quand la composition plastique est essentiellement cuite.

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