Furan no-bake foundry binders and their use

Details Furan no-bake foundry binders and their use Furan no-bake foundry binders and their use

B - Operations, Transporting

22

C

B22C 1/22 (2006.01)

Patent

CA 2377898

This invention relates to furan no-bake foundry binders comprising (a) a reactive furan resin, (b) furfuryl alcohol, and (c) a catalyst component comprising a catalytically effective amount of a Lewis acid furan catalyst. The invention also relates to foundry mixes prepared with the binder, foundry shapes prepared with the foundry mix, and metal castings prepared with the foundry shapes.

L'invention concerne des liants de fonderie durcissant à froid et à base de furanne, comprenant: (a) une résine réactive à base de furanne, (b) un alcool furfurylique, ainsi que (c) un composant catalyseur comprenant une dose, efficace sur le plan catalytique, d'un catalyseur à base de furanne et d'acide de Lewis. L'invention concerne également des mélanges de fonderie, préparés à l'aide du liant, des formes de fonderie préparées à l'aide de ce mélange de fonderie, ainsi que des pièces de fonte préparées à l'aide des formes de fonderie.

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