Patent ID: 6761936
Filing Date: 2004-07-13
Classification: C23C,C23G

Abstract:
Method for hot dip galvanizing of hot-rolled steel strip, wherein:in a first method step, the strip (50) is introduced into a pickling station (10-13) and a layer of scale and reaction products are removed from the strip surface in the pickling station, in another method step, the strip (50) is introduced into a rinsing station (21-23) and residues of the pickle and pickling products are removed from the strip surface in the rinsing station, and subsequently the strip is introduced into a drying station and is dried, and from there in another method step, the strip is introduced into a furnace (40) and is adjusted to galvanizing temperature under a protective gas atmosphere, and in a last method step, the strip is guided through a galvanizing bath and the surface of the strip (50) is coated with a hot dip galvanizing layer in the galvanizing bath, wherein the strip temperature in the furnace (40) is adjusted at most to 50Â° K. above immersion temperature of the strip (50) into the zinc bath, wherein a water-repellent or water-binding medium (25) which wets the strip (50) is introduced into the last rinsing stage (23) of the rinsing station (20).