Binder which hardens the cold of furan, mixture of casting, process for the preparation of a form of casting, and method for the preparation of a casting metal

摘要

"Binder which hardens the cold of furan, mixture of casting, process for the preparation of a form of casting, and method for the preparation of a casting metal.This invention relates to a binder casting toughening cold of furan, which comprise (a) a reactive furan resin, (b) furfuryl alcohol, and (c) and a component of the catalyst.Which comprises a catalytically effective amount of a catalyst for furan / Lewis acid.The invention also relates to casting mixtures prepared with the binder, the forms of casting prepared with the mixture of foundry.And the metal castings prepared with the foundry shapes.