Process and apparatus for the production of a can body by wall ironing
US11407022B2 · kind B2 · utility
0Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2019 |
| Grant date | Aug 9, 2022 |
| Priority date | — |
| Expiry date | Feb 22, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21D51/26
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A process for the production of a can body including a base and a tubular body from sheet metal which is coated on at least one side with a polymer layer, in which process, firstly, a round disc is produced from the sheet metal, which disc is then deep-drawn into a cup which has a polymer layer at least on the outside, after which this cup is formed into a can body by wall ironing, the wall ironing taking place in a single stroke by moving the cup successively through a redraw die and one or more wall-ironing rings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.