Sms Group Gmbh

Sms Siemag Aktiengesellschaft

Ina Hüllen

Norbert Thiel

Uwe Plociennik

Markus Reifferscheid

Axel Stavenow

Dirk Letzel

Dirk Lieftucht

Holger Beyer-Steinhauer

Luc Neumann

Matthias Arzberger

Udo Falkenreck

Hans-Jürgen Odenthal

Lothar Fischer

Walter Weischedel

Andreas Runge

Norbert Uebber

Jürgen Müller

Jochen Schlüter

Lothar Schaps

Otmar Jannasch

Ingo OlgeMöller

Harminder Singh

Volker Mers

Jürgen Friedrich

Frank Seuffert

Reiner KÜLCHEN

Paul-Christian Hopp

Thomas Pursche

Pawel Gabor

The invention relates to a method and to a spraying apparatus () for the thermal surface treatment of a metal product (). The metal product () is conveyed in a transport direction (T) through a treatment section () of a spraying apparatus () equipped with cooling nozzles () while cooling fluid is discharged through the cooling nozzles () of the spraying apparatus () onto the surfaces of the metal product (), wherein the metal product () has—viewed in the transport direction (T) of the metal product ()—a front section () and a trailing rear section (). The cooling of the surfaces of the metal product () within the spraying apparatus () occurs in such a manner that the rear section () of the metal product () is cooled more significantly than its front section (). It is thereby achieved that an essentially uniform ferrite content forms in the material of the metal product () at a predetermined depth of the same over a longitudinal area extending between the front section () and the rear section ().

Method and spraying apparatus for the thermal surface treatment of a metal product

Growing community of inventors

Düsseldorf, Germany

Ina Hüllen