27 - 29 October 2020
Henkel Beiz- und Elektropoliertechnik
The corrosion resistance of stainless steel is based on the formation of a very thin chromium oxide-rich passive layer, which is formed only on metallically pure stainless steel surfaces.Scale layers, welding colours and tarnish, ferritic impurities (e.g. abrasion) and mechanical processing (e.g. grinding, blasting, etc.) inhibit the formation of a closed passive layer.Only fully controlled pickled stainless steel surfaces and weld seams therefore guarantee full corrosion resistance of the material and offer a decorative metallic appearance.
Electropolishing represents the reversal of the electrolytic process. Under the action of direct current, metal is removed from the workpiece surface in an electrolyte ...