The use of sparingly soluble salts in combination with water glass within the scope of the production of molds and cores for the foundry practice

摘要

Use of water glass and / or one or more precursors thereof, in the production of shapes and / or cores for foundry purposes, wherein said use, that as component (1) water glass and / or one or more precursor thereof, and as component (2) one or more sparingly soluble metal salts and / or mixtures of components (1) and (2) for the production of according to a casting process removable shapes and / or cores for foundry purposes, with the particulate materials does not melt during the casting process, as component (3) are mixed, process for the preparation of corresponding shapes and / or cores, as well as corresponding molds and cores, as well as further in the description of the invention described guide forms.