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Thyssenkrupp Steel Europe Ag

Weinhold, Richard

Richard Weinhold

Bernd Schuhmacher

Christian Schwerdt

Nicole Weiher

A flat steel product having a base layer of a steel material and a multilayer coating applied thereto, and a method for producing the flat steel product. The method having the following steps: providing a steel base layer; applying a zinc layer to the base layer by electrolytic coating; applying an aluminum layer to the surface of the zinc layer, wherein no treatment is made to the surface of the zinc layer in regard to the oxides and sulfides present thereon at the end of the electrolytic zinc coating step or occurring during the course of the aluminum coating step; applying a magnesium layer to the aluminum layer; and subsequently heat treating the flat steel product in such a way that an MgZnlayer forms in the coating above the Al layer.

Method for the production of a flat steel product and flat steel product

An apparatus for connecting double jacketed pipes is provided. The apparatus includes two pipe coupling parts corresponding to one another and a locking element for axially connecting the pipe coupling parts:

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Neuss, Germany

Richard Weinhold