Patent
Method of continuous casting non-oriented electrical steel strip
Reads0
Chats0
TLDR
In this article, a method for producing non-oriented electrical steels with low core loss and high magnetic permeability was proposed, which is suitable for use in electrical machinery such as motors or transformers.Abstract:
Non-oriented electrical steels are widely used as the magnetic core material in a variety of electrical machinery and devices, particularly in motors where low core loss and high magnetic permeability in all directions of the strip are desired. A method for producing a non-oriented electrical steel with low core loss and high magnetic permeability provides a steel that is produced from a steel melt which is cast as a thin strip or sheet, cooled, hot rolled and/or cold rolled into a finished strip. The finished strip is further subjected to at least one annealing treatment wherein the magnetic properties are developed, making the steel strip suitable for use in electrical machinery such as motors or transformers.read more
Citations
More filters
Patent
Method of producing Non-Oriented Electrical Steel Sheet
TL;DR: In this paper, a non-oriented electromagnetic steel sheet is produced by subjecting a steel material comprising 0.03-3 mass% of Mn, 3 mass% or less of Al and a remainder made up by Fe and unavoidable impurities to hot-rolling, then a cold-rolling procedure, and then a final annealing procedure, wherein the crystal particle diameter before the cold rolling procedure is adjusted to 100 µm or less and the final heating procedure comprises rapidly heating at an average temperature rising rate of 100°C/sec or more until the temperature reaches a re-
Patent
Non-oriented electrical steel sheet
TL;DR: A non-oriented electrical steel sheet has a chemical composition including, in mass %, C: 0.005% or less, Si: 5%, Al: 3%, Mn: 5%.
Patent
Method for production of non-oriented electrical steel strip
TL;DR: In this article, a method for producing non-oriented electrical steel with improved magnetic properties and improved resistance to ridging, brittleness, nozzle clogging and magnetic aging is described.
Patent
Non-oriented electrical steel
TL;DR: In this article, a non-oriented electrical steel sheet without iron loss in a high magnetic field range is presented. But it is not suitable for the use in high magnetic fields.
Patent
An electrical steel, a motor, and a method for manufacture of electrical steel with high strenght and low electrical losses
TL;DR: In this article, a continuous casting is performed to convert the liquid steel mixture to a slab and a hot roll steel band is created from the slab, which is then pickled and hot band annealed, and then a cold rolled steel strip is formed.
References
More filters
PatentDOI
Hydrogen-absorbing alloy
Tatsuoki Kohno,Isao Sakai,Masaaki Yamamoto,Motoya Kanda,Hideki Yoshida,Fumiyuki Kawashima,Takao Sawa,Takamichi Inaba,Shusuke Inada,Hirotaka Hayashida,Hiroshi Kitayama +10 more
TL;DR: In this paper, a hydrogen-absorbing alloy with a body-centered cubic structure and a periodical structure formed by spinodal decomposition has been proposed, where the relational curve between chemical free energy of solid solutions and an alloy composition has a shape describing an upwardly convexed curve.
Patent
Grain-oriented electromagnetic steel sheet
TL;DR: A grain oriented electromagnetic steel sheet has a plurality of linear fine strains having a traverse section of a concave hollow on it in the steel sheet shows a very low iron loss in its use as discussed by the authors.
Patent
Inorganic/organic insulating coating for non-oriented electrical steel
TL;DR: In this article, a nonoriented electrical steel sheet is treated with a cured insulative coating for providing a high level of surface resistivity to minimize interlaminar power losses, which can be used to minimize power losses in laminated magnetic cores of motors, generators, transformers, and other electrical equipment.
Patent
Process for production of grain oriented electrical steel sheet having excellent magnetic properties
TL;DR: In this article, grain oriented electrical steel sheets having excellent magnetic properties are provided by heating a slab comprising, in terms of by weight, 0.025 to 0.075% of C, 2.5 to 5.0% of Si, especially 3.4 to 4.5% or more in a steel sheet temperature range of from 900°C to 1150°C in the heating stage of the final annealing.