Cold rolling of electrical steel (English)

In: Metallurgy and Magnetism, 2004   ;  5-21  ;  2004

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Cold rolling is one of the essential steps within the fabrication route of electrical steels. Cold rolling of nonoriented electrical steels, which are based on FeSi-alloys with a content of (Si+2Al) < 3,5 wt % is directed: to reduce the thickness of the hot strip to the desired final thickness and to obtain deformation energy for the recrystallization process. With respect to the forming operation the aim is to reach an optimised profile: low geometrical tolerances, good flatness, low internal stresses and also optimum surface features. Control parameters for these quantities of the strip are: profile of hot strip, rolling forces at cold rolling, cross section of the working roll, bending forces of the working roll and the intermediate roll, axial displacement of the intermediate roll and horizontal displacement of the working roll and reel tension. Effects by cold rolling on the resulting magnetic properties are presented. The magnetic properties are mainly influenced by: mean grain size, magnetic texture components, precipitations, internal stress, homogeneity of the grain size across the thickness and surface of the surface region.

Table of contents conference proceedings

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Melting and casting of Fe-based alloys
Scheller, Piotr R. | 2004
Innovative technology for production of metallic strips
Kawalla, Rudolf / Schneider, Jürgen / Hensel, Arno | 2004
The influence of the cool rolling on the structure and texture of the electrotechnical silicon steel, hardened from the liquid state
Potemkin, V.K. / Malinina, R.I. / Nuzhdin, G.A. | 2004
Cold rolling of electrical steel
Hensel, Arno / Schneider, Jürgen / Kawalla, Rudolf | 2004
Soft magnetic materials and their applications. Status and trends
Kolb-Telieps, Angelika / Hattendorf, Heike | 2004
Grain oriented electrical steels: Status and trends
Fortunati, Stefano | 2004
Recent progress in electrical steels
Jenkins, Keith W. | 2004
Production and characterization of high Si-steels up to 6.5 wt-% Si
Houbaert, Y. | 2004
Nanocrystalline hard magnetic materials
Grössinger, R. / Sato, Reiko | 2004
Sintered and/or bonded magnets
Grieb, Bernd | 2004
Power losses in soft magnetic laminations
Fiorillo, Fausto | 2004
Characterisation of the loss behaviour in electrical steels and other soft magnetic materials
Moses, Anthony J. | 2004
Mössbauer spectroscopy - a tool for studying magnetic materials
Zaveta, Karel | 2004
About the modeling of the magnetic circuit and the ferromagnetic materials in electrical machines
Hameyer, Kay / Riesen, Dirk van / Henrotte, Francois | 2004
Industrial motors and high speed drives, status and trends
Braun, W.T. | 2004
Evaluation of effects using different electrical steels in electric machines
Müller, G. / Schneider, Jürgen | 2004
Nonoriented electrical steel for electrical machines
Schoppa, Andreas / Schneider, Jürgen | 2004