Process and device for forming a corrugated metal sheet and corrugated metal sheet obtained by this process
US5626051A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 24, 1995 |
| Grant date | May 6, 1997 |
| Priority date | — |
| Expiry date | Apr 24, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/328
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for forming a corrugated metal sheet (1) which includes perforations (2) over its entire surface, in which process the metal sheet (1) is laid on a die (11) provided with corrugations (11b), the space (13) delimited beween the metal sheet (1) and the die (11) is sealed by blocking off the perforations (2) in the metal sheet (1), an explosive charge (16) with remote-controlled firing is placed on top of the upper face of the metal sheet (1), a vacuum is created in the space (13) delimited between the metal sheet (1) and the die (11), the entire assembly is immersed in a firing tank filled with water, and firing of the explosive charge is initiated, so that the energy release presses the metal sheet (1) against the die (11). The invention also includes a device for forming a corrugated metal sheet and a corrugated metal sheet formed by the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.