| abstract |
The present invention relates to a mold material mixture for the manufacture of casting molds for metal working, to a method for producing a casting mold, to a casting mold obtained by the above method and to the use of the casting mold. Binders based on refractory mold materials and water glass are used for the production of casting molds. A predetermined proportion of particulate metal oxide is added to the binder, which metal oxide is selected from the group consisting of silicon dioxide, aluminum oxide, titanium oxide and zinc oxide, particularly preferably synthetic amorphous silicon dioxide. The mold material mixture contains a surfactant substance as a base component. The addition of the surfactant material can improve the fluidity of the mold material mixture and allow the production of casting molds with very complex geometries. |