Method and casting mold, in particular for use in cold casting methods
AssigneeVoxeljet AG
InventorsIngo Ederer, Daniel Günther, Anton Gruber
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Abstract
The invention relates to a casting mold, in particular for use in cold casting methods, which is produced with the aid of a powder-based layering method, the final casting mold having a treated surface.
Claims20
A casting mold for use in cold casting methods, which is prepared from a porous molded body having a porous surface produced with the aid of a powder-based layering method, wherein the porous surface is sealed;
- wherein the porous molded body includes particles comprising a sand, a ceramic, a metal, or a wood;
- wherein the porosity of the surface is sealed by means of a hot-water-soluble substance,
- wherein the hot-water-soluble substance is dissolved in hot water and is resistant to solubility from mixing waters of a concrete present during a cold casting, so that a geometric barrier is maintained between the casting mold and the mixing waters of the concrete during the cold casting.
A casting mold for use in cold casting methods, which is prepared from a porous molded body having a porous surface produced with the aid of a powder-based layering method, wherein the porous surface is sealed substantially water-tight;
- wherein the porous surface is modified by an unsaturated polyester, a phenol/resol resin, or a polystyrene, for reducing the porosity of the surface.
A casting mold for use in cold casting methods, which is prepared from a porous molded body having a porous surface produced with the aid of a powder-based layering method, wherein the porous surface is sealed substantially water-tight;
- wherein the porous surface has a surface treatment comprising a sealing, a coating, a processing and/or another type of treatment;
- wherein the casting mold includes an infiltrate in pores of the porous molded body, wherein the infiltrate is applied into the pores prior to the porous surface being sealed by the sealant.
Dependencies are inferred from the claim text.