METHOD FOR PRODUCING A CORROSION-RESISTANT, WORKABLE SHEET METAL WITH FULL-SURFACE COATING OF THE JOINED, THERMALLY TREATED STEEL SHEETS
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United States of America Patent
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app pub date -
Jul 26, 2007
filing date -
Aug 4, 2006
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Abandoned
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Abstract
The invention relates to a method of producing corrosion-resistant and workable sheet metal consisting of uncoated steel sheets (1, 1′), comprising the following steps: —placing the steel sheets (1, 1′) in abutting relationship, —welding the or each joint groove (14) by butt joint welding by means of a welding beam (13) for forming a weld (2) along the respective joint groove (4), —thermal treatment of the or each weld (2) directly after or even during the forming of the weld (2) by means of an annealing beam (15), —full-surface coating of the joined steel sheets (1, 1′), including the or each weld (2), after cooling the welds (2), with a metallic coating.
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