Verfahren zur Verbesserung der Verformungs- und Verschweisseigenschaften von verzinktem Blattstahl
摘要
A post plating or post coating method for improving formability and weldability properties in sheet steel product having a protective zinc or zinc alloy layer formed on at least one surface thereof. The steps of the method comprise immersing the sheet steel product into a bath containing at least zinc to apply the protective layer, removing the sheet steel product from the bath, the sheet steel product having a protective zinc or zinc alloy layer formed on at least one surface thereof, and applying an alkaline solution to the protective layer to form a zinc oxide layer thereon, the alkaline solution being applied at a location outside the bath. <IMAGE>
申请公布号
DE69601323(D1)
申请公布日期
1999.02.25
申请号
DE1996601323
申请日期
1996.05.14
申请人
BETHLEHEM STEEL CORP., BETHLEHEM, PA., US
发明人
SHASTRY, RAMADEVA C., BETHLEHEM, PENNSYLVANIA 18017, US;FOUNTOULAKIS, STAVROS G., PATTENBURG, NEW JERSEY 08802, US;WENDELL, ELMER J., BETHLEHEM, PENNSYLVANIA 18017, US