Other

Franz-Gerd Ricke

Joerg Riesop

Hubertus Peters

Frank Panter

Dieter Geruhn

Manfred Wessel

Andreas Klare

A process for controlling the layer weight during the phosphating of steel strip zinc-coated on one or both sides, using a phosphating solution which contains 1 to 6 g/l zinc ions and 10 to 30 g/l phosphate ions, characterized in that a Fe(II) ion content within the range of 3 to 100 mg/l is established in the phosphating solution. The higher the Fe(II) content, the lower is the layer weight. An alteration in the Fe(II) content of 3 to 20 mg/l results in an alteration in the layer weight of about 0.1 g/m .

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Munich, Georgia

Franz-Gerd Ricke