Method and device for additive manufacturing by agglomeration of a granular material
US11992873B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Jul 8, 2019 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Apr 3, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for manufacturing a structure from a granular material, called sand, in particular a mold. A layer of sand is deposited. The layer of sand is selectively agglomerated by spraying, using a spray nozzle, an inorganic binder having an M2SiO3 type (meta)silicate dissolved in a solvent. Prior to the spraying, the inorganic binder is heated to a temperature to confer on it a viscosity less than 0.2 Pa·s. A device for implementing the method is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.