METHOD OF MAKING NON-ORIENTED ELECTRICAL STEEL SHEETS HAVING EXCELLENT MAGNETIC PROPERTIES
PCT No. PCT/JP89/00439 Sec. 371 Date Jun. 13, 1990 Sec. 102(e) Date Jun. 13, 1990 PCT Filed Apr. 26, 1989 PCT Pub. No. WO90/12896 PCT Pub. Date Nov. 1, 1990.A method of producing non-oriented electrical steel sheets having excellent magnetic properties which comprehends heating a steel at the low te...
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Format | Patent |
Language | English |
Published |
17.11.1992
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Abstract | PCT No. PCT/JP89/00439 Sec. 371 Date Jun. 13, 1990 Sec. 102(e) Date Jun. 13, 1990 PCT Filed Apr. 26, 1989 PCT Pub. No. WO90/12896 PCT Pub. Date Nov. 1, 1990.A method of producing non-oriented electrical steel sheets having excellent magnetic properties which comprehends heating a steel at the low temperature for hot rolling, thereby to minimize re-solution of AlN particles when a slab is cooled, so that coarsening of AlN particles is facilitated during annealing the hot rolled sheet; and coiling at low temperatures for controlling the amount of scale generation. De-scaling is perfectly accomplished after the hot rolling, and the hot rolled sheet is annealed in a non-annealing atmosphere, thereby to control the oxidation and the nitriding to a minimum during annealing the hot rolled sheet, and the annealing conditions of the hot rolled sheet are specified for proper coarsening of the cohesion, taking into consideration the magnetic properties and the economics. |
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AbstractList | PCT No. PCT/JP89/00439 Sec. 371 Date Jun. 13, 1990 Sec. 102(e) Date Jun. 13, 1990 PCT Filed Apr. 26, 1989 PCT Pub. No. WO90/12896 PCT Pub. Date Nov. 1, 1990.A method of producing non-oriented electrical steel sheets having excellent magnetic properties which comprehends heating a steel at the low temperature for hot rolling, thereby to minimize re-solution of AlN particles when a slab is cooled, so that coarsening of AlN particles is facilitated during annealing the hot rolled sheet; and coiling at low temperatures for controlling the amount of scale generation. De-scaling is perfectly accomplished after the hot rolling, and the hot rolled sheet is annealed in a non-annealing atmosphere, thereby to control the oxidation and the nitriding to a minimum during annealing the hot rolled sheet, and the annealing conditions of the hot rolled sheet are specified for proper coarsening of the cohesion, taking into consideration the magnetic properties and the economics. |
Author | HOSOYA; YOSHIHIRO JITSUKAWA; MASAHARU TOMITA; KUNIKAZU NISHIMOTO; AKIHIKO URABE; TOSHIAKI |
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Snippet | PCT No. PCT/JP89/00439 Sec. 371 Date Jun. 13, 1990 Sec. 102(e) Date Jun. 13, 1990 PCT Filed Apr. 26, 1989 PCT Pub. No. WO90/12896 PCT Pub. Date Nov. 1, 1990.A... |
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SubjectTerms | ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS |
Title | METHOD OF MAKING NON-ORIENTED ELECTRICAL STEEL SHEETS HAVING EXCELLENT MAGNETIC PROPERTIES |
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