Patent EP0030649A2 successfully refreshed from Google Patents.
EP0030649A2
Expired / Lapsed
EP
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Process for the production of lids made of sheet metal for containers, especially cans
Assignee: Ardagh Metal Packaging Germany GmbH
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Filing: 1980-11-22
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Granted: —
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Expires: 2000-11-22
Abstract
Abstract Sheet metal parts such as can covers, or the like, are deburred around the edges by an electrochemical treatment step in which the sheet metal to be deburred forms the anode in an alkaline electrolytic bath. The material removal is substantially limited to the location of the stamping burrs and edges around holes in the sheet material by controlling the current flow or current density in response to the physical size of the burr which is mechanically sensed and by properly limiting the duration of the current flow.
Inventors
- 👤 Helmuth Supik
- 👤 Hans-Jürgen Schlinsog
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 23:47
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/44; B21D28/00; B21D28/02; B21D28/06; B65; B65D; B65D17/00; B65D17/50; B65D17/501; B65D17/502; B65D2517/00; B65D2517/0001; B65D2517/001; B65D2517/0013; B65D2517/0058; B65D2517/0089; B65D2517/0091; B65D2517/0094; B65D2517/50; B65D2517/504; B65D2517/5059
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