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Hydraulic composition for additive manufacturing device, and method for producing casting mold
US12054426B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12054426-B2 |
| Application number | US-201917297209-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 11, 2019 |
| Priority date | Dec 15, 2018 |
| Publication date | Aug 6, 2024 |
| Grant date | Aug 6, 2024 |
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Abstract
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A hydraulic composition for an additive manufacturing device, the hydraulic composition containing at least sand, an inorganic binder, and polyvinyl alcohol, wherein the hydraulic composition for an additive manufacturing device satisfies conditions (1) and (2).(1) The mass ratio of sand/(inorganic binder+polyvinyl alcohol) is 4 to 12.(2) The mass ratio of polyvinyl alcohol/inorganic binder is 0.1 to 0.4.The hydraulic composition for an additive manufacturing device also preferably satisfies condition (3).(3) The mass ratio of water/(inorganic binder+polyvinyl alcohol) is 0.30 to 1.30.
First claim
Opening claim text (preview).
The invention claimed is: 1. A hydraulic composition for an additive manufacturing device, the hydraulic composition comprising at least sand, an inorganic binder, and polyvinyl alcohol, wherein the hydraulic composition for an additive manufacturing device satisfies conditions (1) and (2) below: (1) a mass ratio of the sand/(inorganic binder+polyvinyl alcohol) is 4 to 12; and (2) a mass ratio of the polyvinyl alcohol/inorganic binder is 0.1 to 0.4; and wherein the inorganic binder contains amorphous calcium aluminates alone or contains at least 50 mass % and less than 100 mass % of the amorphous calcium aluminates for 100 mass % of a total of the amorphous calcium aluminates and a rapid-hardening cement. 2. The hydraulic composition for an additive manufacturing device according to claim 1 , which additionally satisfies condition (3) below: (3) a mass ratio of water to the (inorganic binder+polyvinyl alcohol) is 0.30 to 1.30. 3. A method for producing a casting mold using the hydraulic composition for an additive manufacturing device according to claim 1 , comprising: mixing the at least sand, inorganic binder, and polyvinyl alcohol and preparing the hydraulic composition, and spreading the prepared hydraulic composition within the additive manufacturing device and forming the casting mold.
Assignees
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Classifications
for the fabrication of moulds or cores · CPC title
Mixtures specially adapted for three-dimensional printing (3DP), stereo-lithography or prototyping · CPC title
Polyvinylalcohols; Polyvinylacetates · CPC title
Portland cement · CPC title
Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials · CPC title
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- What does patent US12054426B2 cover?
- A hydraulic composition for an additive manufacturing device, the hydraulic composition containing at least sand, an inorganic binder, and polyvinyl alcohol, wherein the hydraulic composition for an additive manufacturing device satisfies conditions (1) and (2).(1) The mass ratio of sand/(inorganic binder+polyvinyl alcohol) is 4 to 12.(2) The mass ratio of polyvinyl alcohol/inorganic binder is …
- Who is the assignee on this patent?
- Taiheiyo Cement Corp
- What technology area does this patent fall under?
- Primary CPC classification C04B28/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 06 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).