Method, plant and molds for forming slabs of agglomerate
OwnerLuca Toncelliinventor
Life of this patent
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Abstract
A method for preparation of a mold (10) intended to form a slab from a mixture of agglomerate comprising the steps of depositing over the mold surfaces a sheet (15) of PVA-based plastic material so as to form with it a surface for subsequent contact with the mixture introduced into the mold for forming the slab, whereby in at least some areas a layer (14) of a fluid agent containing PVA in a solution is interposed between the sheet (15) and the mold surfaces. A plant for carrying out the method and a method for production of a slab are also described.
Claims25
Method for production of slabs from a mixture of agglomerate, the method comprising the steps of:
- providing a mold (10) having an internal surface;
- applying a layer (14) of a fluid adhesive agent containing PVA in a solution to at least some areas of the internal surface of the mold (10);
- depositing over the layer (14) at least one sheet (15) of PVA-based plastic material such that the layer (14) is positioned between the at least one sheet (15) and the at least some areas of the internal surface of the mold (10);
- introducing the mixture of agglomerate into the mold (10) such that the mixture is in contact with the at least one sheet (15);
- and
- carrying out a slab forming process to transform the mixture inside the mold (10) into a slab.
A system comprising:
- a fluid adhesive agent containing PVA in a solution;
- at least one sheet (15) of PVA-based plastic material;
- a mold (10) having an internal surface;
- a first station (21) configured for applying a layer (14) of the fluid adhesive agent to at least some areas of the internal surface of the mold (10);
- and
- a second station (22) arranged after the first station (21) and configured for depositing the sheet (15) of PVA-based plastic material on the layer (14).
Mold (10) intended to form a slab from a mixture of agglomerate, comprising:
- a base portion (11) and a cover (12) configured to be superimposed on the base portion, each having an internal surface;
- at least one sheet (15) of PVA-based plastic material covering the internal surface of the base portion (11) and forming a surface that is intended for contact with the mixture of agglomerate to be introduced into the mold (10) for forming the slab;
- a layer (14) of a fluid adhesive agent containing PVA in a solution provided between the at least one sheet (15) and at least some areas of said internal surface of the base portion (11).
Dependencies are inferred from the claim text.