| Document |
Document Title |
|
7465361 |
In a method for manufacturing a grain-oriented electrical steel sheet using steel containing less than 100 ppm of Al and 50 ppm or less each of N, S, and Se as a starting material, purification annealing is performed at 1050° C. or more...
|
|
7442260 |
The present invention provides a grain-oriented electrical steel sheet with an extremely low core loss by scanning by a small focused laser beam spot and a method of production of the same, that is, a grain-oriented electrical steel shee...
|
|
7368166 |
A metallic glass-coated microwire has controllable surface porosity. The porosity is achieved by etching the metallic glass-coated microwire or other shapes of glass-coated bodies with acid after annealing to produce a multi-phase glass ...
|
|
7364629 |
In a method for manufacturing grain-oriented silicon steel with mirror-like surface by applying an aqueous slurry of an annealing separator, magnetic properties are stabilized by controlling the amount of moisture, carried in the anneali...
|
|
7282102 |
A method for manufacturing a high silicon grain-oriented electrical steel sheet. In a method for manufacturing a high silicon grain-oriented electrical steel sheet, comprising the steps of: reheating and hot-rolling a steel slab to produ...
|
|
7233249 |
A glass-coated amorphous metallic microwire is encoded with multi-bit digital information. Encoding is achieved magnetically, optically or through a combination of magnetic and optical encoding processes. Magnetic encoding is carried out...
|
|
6666929 |
It has been found out that in the laser treatment for the control of the magnetic domain sizes in grain oriented electrical silicon steel sheets, by optimizing some essential parameters of the treatment such as specific radiation energy,...
|
|
6562473 |
Electrical steel sheets having superior magnetic properties, anti-noise properties, and workability, are ideal for use a compact iron core material in electric apparatuses, such as compact transformers, motors, and electric generators. A...
|
|
6312531 |
Soft magnetic powder of Fe--Al--Si system of which magnetostrictive constant λ takes a positive value at the room temperature is employed to produce a magnetic composite article so that a temperature characteristic of core-loss of the a...
|
|
6280862 |
|
|
6136456 |
Grain oriented electrical steel sheet with a very low iron loss and a method for producing the same, wherein the surface of the iron substrate of the grain oriented electrical steel sheet is subjected to an enhancement treatment of cryst...
|
|
5565272 |
A grain oriented silicon steel sheet having excellent primary glass film property and magnetic property, comprising 2.0 to 5.0% by weight of Si, wherein a primary glass film formed during secondary recrystallization annealing is composed...
|
|
5547519 |
The present invention provides an annealing separator composition for coating grain oriented electrical steel prior to the final high temperature anneal for secondary grain growth. The magnesia based coating contains at least 20% silica ...
|
|
5417772 |
Method for producing a magnetic steel strip having a thickness of less than 5 mm and containing, in composition by weight, more than 2% silicon, less than 0.1% carbon and a suitable amount of secondary recrystallization inhibiting elemen...
|
|
5393321 |
A method of producing continuous lengths of metallic strip comprises the steps of forming a spray of molten metal particles, causing the particles to be deposited onto a surface of a hollow receptor roll, rotating and internally heating ...
|
|
5352490 |
A reaction gas or a gas containing a reaction gas is blown through blowing nozzles onto a steel material in a chemical vapor deposition treating chamber at a velocity sufficient to forcibly remove reacted products from reacted surfaces o...
|
|
5089062 |
A steel sheet (10) having a stress-relief annealed, structure with a plurality of magnetic domains (12) is made by drilling a plurality of closely spaced, small holes (15) through the entire thickness of the steel sheet, where the drilli...
|
|
5089061 |
The present invention relates to a method for producing high silicon steel strip in a continuous treatment line through chemical vapor deposition (called "CVD" hereinafter), wherein the steel strip is subjected continuously to siliconiza...
|
|
5085411 |
An apparatus for processing grain-oriented electrical steel strip has a groove-scribing unit, which comprises a groove-scribing roll mounted above a pressing roll, disposed on the entry side of an insulation coating unit. A bridle roll i...
|
|
5080326 |
A method is provided for improving the electrical characteristics of grain-oriented silicon steel sheet by heating the steel to temperatures above 1000° F. and then deforming grooves to refine the magnetic domains, optionally, post heat...
|
|
5062906 |
The present invention is to produce non-oriented electrical steel sheet by a hot direct rolling. The slab is directly sent to the hot rolling without the brief soaking, whereby others than AlN inevitably precipitated check the precipitat...
|
|
5045129 |
The present invention concerns a process for the production of semiprocessed non oriented grain electrical steel. More precisely it provides a solution to the technical problem of obtaining non oriented grain sheet or strip characterized...
|
|
5026439 |
The present invention provides a wound core having a low core loss and not susceptible to a disappearance of the core loss lowering effect due to a magnetic domain refining even when stress-relief annealing is conducted after fabrication...
|
|
5013373 |
Permanent domain refinement of grain oriented electrical steel strip is obtained in a high speed two-stage process. The process removes the glass in narrow regions which just expose the base metal. An electrolytic etch is then used to de...
|
|
4968361 |
A method is provided for domain refinement of final texture annealed grain-oriented silicon steel by removing portions of the base coating to substantially expose a line pattern of the underlying silicon steel by applying in the pattern ...
|
|
4904312 |
This invention relates to a method of enhancing linear impressions formed in the surface of grain oriented electrical steel strip, by electrolytically etching said impressions with e.g. citric acid. The impressions may be formed by mecha...
|
|
4832762 |
An ordinarily made thin steel sheet is placed in an atmosphere bearing SiCl 4 , and subjecting to Si penetrating treatment at temperatures between 1100° C. and 1200° C. for a determined period of time. A heating rate is used which is m...
|
|
4439252 |
A grain-oriented silicon steel sheet having excellent magnetic properties can be stably produced by adjusting properly the C content in a silicon steel to be used as a starting material depending upon the Si content in the steel, removin...
|
|
4437909 |
The present invention relates to a process for producing a grain-oriented silicon steel sheet or strip, wherein the crystals of the steel sheet or strip have an orientation of {110}<001> and, further, the steel is easily magnetized...
|
|
4371405 |
In a process for producing a grain-oriented silicon steel strip, comprising the steps of: hot rolling, annealing, if necessary; heavy cold rolling; decarburization-annealing, and; final annealing, an improvement which comprises controlli...
|
|
4311538 |
The use of coarse sand particles having an average size of 0.5-10 mm in the sealing of the lower end portion of an inner cover, which is arranged in a box annealing furnace, at the final annealing, in the production of grain-oriented sil...
|
|
4108694 |
A continuously cast steel slab for production of a grain-oriented electrical steel sheet having excellent magnetic properties in which at least 95% of the total number of grains constituting an equi-axed crystal zone in said slab has a c...
|
|
4050957 |
A process for the passivation of discrete particles of ferrosilicon containing 30-90% by weight silicon comprises contacting the particles with a gaseous oxidizing agent at a temperature between 800°-1150° C for a time ranging between ...
|
|
4043805 |
A silicon-containing high strength steel sheet having isotropic high ductility and toughness in all directions independently of the rolling direction comprising 0.03 to 0.15% C, 0.7 to 2.3% Si, 0.7 to 2.0% Mn with the balance being iron ...
|
|
4006044 |
A steel slab containing silicon for use as an electrical steel sheet and strip and having no blister occurrence in the final product manufactured by continuous casting, characterized in that said slab comprises 2.5 - 4.0 wt.% of silicon,...
|
|
3986902 |
A process for producing grain oriented silicon sheet steel having excellent magnetic properties in which the manganese and sulfur contents are critically controlled so that the product of manganese content, in weight percent, times sulfu...
|
|
3960616 |
A melt for cold rolled, non-oriented silicon steel is deoxidized and thereafter treated with mischmetal or a mischmetal alloy to desulfurize the melt to 0.012% by weight sulfur or less without the formation of a polluting smoke. The deox...
|
|
3935038 |
A method for manufacturing non-oriented electrical steel sheet and strip having no ridging characterized in that, non-oriented electrical steel sheet and strip is manufactured by casting molten silicon steel into a slab, hot-rolling, col...
|
|
3876476 |
A continuously cast slab for producing grain oriented electrical steel sheets, comprising 0.025 - 0.060% of carbon, not less than 0.030% of manganese, not less than 0.010% of sulfur, 2.0 - 4.0% of silicon, not more than 0.005% of sol.alu...
|
|
3841924 |
A method for producing a high magnetic flux density grain oriented electrical steel sheet or strip having remarkably excellent B 8 characteristics, comprising treating a hot rolled steel sheet containing a small amount of acid-soluble A...
|
|
3802937 |
An improvement in the production of cube-on-edge silicon-iron comprising the step of heating the silicon-iron having an oxygen content no greater than 0.0045 percent to a temperature of from 2,100°F. to not more than 2,400°F. immediate...
|
|
3770517 |
Described is a method of producing substantially non-oriented silicon steel by a three-stage cold rolling process wherein the silicon steel is temper rolled in the third or last rolling stage after normalizing to effect a reduction in ga...
|
|
3644185 |
The method of improving the magnetic properties of conventional cube-on-edge oriented, silicon-iron sheet stock by providing the sheet with a light electropolish before or after the final high-temperature orientation anneal sufficient to...
|
|
3523881 |
|
|
3499735 |
|
|
3438820 |
|
|
3423253 |
|
|
3418710 |
|
|
3415696 |
|
|
3375144 |
|
