Heraeus Elektroden Gmbh

Heraeus Elektrochemie Gmbh

Das Environmental Expert Gmbh

Stephan Kotowski

Bernd Busse

Bernd Donnerhak

Reinhard Bedel

Harri Heinke

Wolfgang Blatt

Max Mayr

Jörg Fischer

Kerstin Ilgen

Lutz Haldenwang

For cathodic protection against corrosion of steel reinforcements in reinforced steel constructions, a prefabricated anode is provided which has a core of titanium expanded metal provided with an activation layer and with a cement-containing ion-conductive jacket; the prefabricated anode is immovably secured to the reinforced concrete construction in an ion-conductive bond; after that, the reinforcement of the concrete construction and the core of the anode are connected to the poles of a direct voltage source.

Anode for cathodic protection against corrosion

To permit continuous roll-off or stripping of metal in form of a ribbon, tape or foil from a rotating cathode roller or drum (3, 43) within a metal ion containing solution, the cathode roller or drum is cooled during operation and the solution of the processing liquid contains a halogen compound or a sulfur compound, for example zinc chloride, to obtain zinc in form of a ribbon, tape or foil. The cathode roller or drum is at least partly, and for example entirely submerged in the ion containing processing solution, rotatable about a horizontal or vertical axis, and the anodes (4, 44) are separated from the ion containing solution by a separating diaphragm or ion exchange membrane.

Method and apparatus for continuous electrolytic recovery of metal in

Process for the visual inspection of an electrode (anode) having an activated layer for electrogalvanizing plants for steel bands in which the electrode to be tested is inserted between anode and cathode of a sodium sulfate electrolytic cell with the surface to be tested facing toward the cathode. After a voltage is applied the development of the gas bubbles on the activated layer is monitored by means of a video camera.

Test cell for identifying deactivated surface areas of an electrode

Inspection of electrodes having activated layers

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Seligenstadt, Germany

Stephan Kotowski