PROCESS FOR PRODUCING A CORROSION-PROTECTED STEEL SHEET
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United States of America Patent
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Issued Date -
Apr 16, 2009
app pub date -
Oct 24, 2005
filing date -
Oct 28, 2004
priority date (Note) -
Abandoned
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Abstract
A process for producing a corrosion-protected steel sheet for coating with an organic coating agent, includes vacuum-coating the steel sheet, which is protected against corrosion with a layer of zinc or zinc alloy, with at least one additional metal or a metal alloy. After vacuum-coating, the steel sheet is subjected to a thermal diffusion treatment and finally cooled down. The process is characterized according to the invention in that cooling takes place with a water-based coolant.
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