Oriented Electrical Steel Sheets

Electrical steels, Steels, Sheet materials, Strips, Thickness, Designations, Surface properties, Coated materials, Grades (quality), Magnetic flux density, Flatness (surface), Flatness measurement, Curvature, Cambered, Inspection, Dimensional measurement, Dimensional tolerances, Test specimens, Specimen preparation, Testing conditions

Written in lucid prose, this text provides students of electrical engineering and practicing electrical design engineers with the properties of electrical steels. Beckley (Cardiff U., UK, consultant to Cogent Power), who has published extensively on the subject, defines the principles behind the actions of electrical steels, their properties, and the history of their development. He then describes manufacturing methods, range of materials, coatings, insulation, effects of punching and core building, high-frequency applications, and testing, among other topics. Annotation copyrighted by Book News, Inc., Portland, OR

Electrical steels are critical components of magnetic cores used in applications ranging from large rotating machines, including energy generating equipment, and transformers to small instrument transformers and harmonic filters. Presented over two volumes, this comprehensive handbook provides full coverage of the state-of-the-art in electrical steels. Volume 1 covers the fundamentals and basic concepts of electrical steels. Topics covered include soft magnetic materials; basic magnetic concepts; magnetic domains, energy minimisation and magnetostriction; methods of observing magnetic domains in electrical steels; electromagnetic induction; fundamentals of a.c. signals; losses and eddy currents in soft magnetic materials; rotational magnetisation and losses; anisotropy of iron and its alloys; magnetic circuits; the effect of mechanical stress on loss, permeability and magnetostriction; magnetic measurements on electrical steels; background to modern electrical steels; production of electrical steels; amorphous and nano-crystalline soft magnetic materials; nickel-iron, cobalt-iron and aluminium-iron alloys; consolidated iron powder and ferrite cores; and temperature and irradiation dependence of magnetic and mechanical properties of soft magnetic materials. The companion Volume 2 describes performance and outlines applications. oduction of electrical steels; amorphous and nano-crystalline soft magnetic materials; nickel-iron, cobalt-iron and aluminium-iron alloys; consolidated iron powder and ferrite cores; and temperature and irradiation dependence of magnetic and mechanical properties of soft magnetic materials. The companion Volume 2 describes performance and outlines applications.

Magnetic alloys, Steels, Magnetic materials, Sheet materials, Strips, Coils, Cold-working, Rolling, Dimensions, Dimensional tolerances, Thickness, Width, Curvature, Flatness (surface), Form tolerances, Designations, Classification systems, Magnetic properties of materials, Power losses, Magnetic flux density, Surface defects, Insulating coatings, Adhesion, Stacking, Density, Bending, Inspection, Test specimens, Testing conditions, Specimen preparation, Sampling methods, Dimensional measurement, Bend testing