Apparatus for molding a mold and a metal used therefor
US7500840B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2005 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Mar 22, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C15/245
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An apparatus for molding a mold by pressurizing a foam mixture composed of particles of aggregate, water-soluble binders, and water, and injecting it into a cavity of a heated metal mold that includes a hollow rectangular-parallelepiped body 12 having a bottom plate 14, the bottom plate 14 having an injection hole 13 to inject the foam mixture, a device 10 for containing the foam mixture having functions as a mixing bath to mix particles of aggregate, water-soluble binders, and water, and as a pressurized vessel to inject the foam mixture into the metal mold, and a device 22 for closing and opening the injection hole 13. The apparatus is further provided with a device for measuring a temperature of the particles of aggregate or the foam mixture, the viscosity, and the moisture and a device for communicating gases from the cavity of the metal mold to the outside of the mold so that the particles of aggregate cannot pass through it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.