Apparatus and method for producing casting mold
US7784524B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 18, 2004 |
| Grant date | Aug 31, 2010 |
| Priority date | — |
| Expiry date | Apr 19, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22C9/12
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An apparatus and a method for producing a casting mold are provided, according to which the casting mold having a complex shape can be obtained with stable quality. The apparatus comprises a mold having a cavity therein, a steam supply unit, a steam supply passage connected to the cavity, steam discharge passages, flow regulators disposed in the steam discharge passages to regulate an amount of the steam discharged from the cavity, and a control unit for controlling the flow regulators. After a resin-coated sand prepared by coating a refractory aggregate with a binder resin is injected into the cavity of the heated mold, superheated steam is supplied into the cavity. At this time, the control unit controls the flow regulators such that the cavity is uniformly filled with the superheated steam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.