METHOD OF PREPARATION OF MOLDING SANDY-ARGILLACEOUS MIXTURES Russian patent published in 2004 - IPC

FIELD: foundry.

SUBSTANCE: the invention presents a method of preparation of molding sandy-argillaceous mixtures and is dealt with foundry. Ingredients of the mixtures load into a twirled cylindrical bowl with twirled blades. The bowl twirls with a speed allowing to make a pressure in a mixture equal to 0.14-0.9 of the maximum strength of the mixture squeezing. Blades are twirling regarding to the bowl with a speed making (-1.5) - (+ 1.0) of the speed of rotation of bowl. Such parameters of twirl ensure production of mixtures of increased quality and without an abrasive wear of grains of the bodies of the mixture and blades.

EFFECT: the invention ensures production of mixtures of increased quality and without an abrasive wear of grains of the bodies of the mixture and the blades.

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