RU2014131107A - Лист из электромагнитной стали с ориентированной структурой с покрытием и способ его изготовления - Google Patents

Лист из электромагнитной стали с ориентированной структурой с покрытием и способ его изготовления Download PDF

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RU2014131107A
RU2014131107A RU2014131107A RU2014131107A RU2014131107A RU 2014131107 A RU2014131107 A RU 2014131107A RU 2014131107 A RU2014131107 A RU 2014131107A RU 2014131107 A RU2014131107 A RU 2014131107A RU 2014131107 A RU2014131107 A RU 2014131107A
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Томоюки ОКУБО
Гоу КИДЗИМА
Макото ВАТАНАБЕ
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Abstract

1. Лист из текстурированной электротехнической стали с покрытием, включающий:лист из текстурированной электротехнической стали; ипокрытие, которое сформировано на поверхности листа из текстурированной электротехнической стали, которое содержит элементы Р, Si, Cr и O, а также, по меньшей мере, один элемент, выбранный из группы, состоящей из Mg, Al, Ni, Co, Mn, Zn, Fe, Ca и Ba, и которое включает, по меньшей мере, 5% масс. фосфатной кристаллической фазы.2. Способ изготовления листа из текстурированной электротехнической стали с покрытием, включающий стадии:изготовления листа из текстурированной электротехнической стали; иполучение листа из текстурированной электротехнической стали с покрытием нанесением на поверхность листа из текстурированной электротехнической стали рабочего раствора покрытия, включающего первичную соль фосфата, содержащую, по меньшей мере, один элемент, выбранный из группы, состоящей из Mg, Al, Ni, Со, Mn, Zn, Fe, Ca и Ba; коллоидный диоксид кремния; и, по меньшей мере, одно соединение хромовой кислоты, выбранное из группы, состоящей из хромового ангидрида, солей хромата и бихромата, с последующим нагревом,в котором соблюдается условие (i) или (ii):где T обозначает температуру T стального листа (единицы измерения: °C) при прокаливании, и R обозначает массовое отношение (CrO/PO) соединения хромовой кислоты (в пересчете на CrO3) к первичной соли фосфата (в пересчете на PO) в рабочем растворе покрытия.3. Способ изготовления листа из текстурированной электротехнической стали с покрытием по п. 2, в котором стадия изготовления листа из текстурированной электротехнической стали включает горячую прокатку сляба для получения листа из текстурированной электротехнической стали, отжиг полученного горяче

Claims (3)

1. Лист из текстурированной электротехнической стали с покрытием, включающий:
лист из текстурированной электротехнической стали; и
покрытие, которое сформировано на поверхности листа из текстурированной электротехнической стали, которое содержит элементы Р, Si, Cr и O, а также, по меньшей мере, один элемент, выбранный из группы, состоящей из Mg, Al, Ni, Co, Mn, Zn, Fe, Ca и Ba, и которое включает, по меньшей мере, 5% масс. фосфатной кристаллической фазы.
2. Способ изготовления листа из текстурированной электротехнической стали с покрытием, включающий стадии:
изготовления листа из текстурированной электротехнической стали; и
получение листа из текстурированной электротехнической стали с покрытием нанесением на поверхность листа из текстурированной электротехнической стали рабочего раствора покрытия, включающего первичную соль фосфата, содержащую, по меньшей мере, один элемент, выбранный из группы, состоящей из Mg, Al, Ni, Со, Mn, Zn, Fe, Ca и Ba; коллоидный диоксид кремния; и, по меньшей мере, одно соединение хромовой кислоты, выбранное из группы, состоящей из хромового ангидрида, солей хромата и бихромата, с последующим нагревом,
в котором соблюдается условие (i) или (ii):
Figure 00000001
Figure 00000002
где T обозначает температуру T стального листа (единицы измерения: °C) при прокаливании, и R обозначает массовое отношение (Cr2O3/P2O5) соединения хромовой кислоты (в пересчете на Cr2O3) к первичной соли фосфата (в пересчете на P2O5) в рабочем растворе покрытия.
3. Способ изготовления листа из текстурированной электротехнической стали с покрытием по п. 2, в котором стадия изготовления листа из текстурированной электротехнической стали включает горячую прокатку сляба для получения листа из текстурированной электротехнической стали, отжиг полученного горячекатаного стального листа, однократную или, по меньшей мере, двукратную холодную прокатку отожженного стального листа с промежуточным отжигом, затем после отжига первичной рекристаллизации и последующего нанесения отжигового сепаратора, проведение окончательного отжига стального листа, так чтобы получить лист из текстурированной электротехнической стали, при этом скорость нагрева в процессе нагрева от 500°C до 700°C в отжиге первичной рекристаллизации составляет 50-300°C/сек.
RU2014131107/02A 2011-12-28 2012-11-12 Лист из электромагнитной стали с ориентированной структурой с покрытием и способ его изготовления RU2580775C2 (ru)

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PCT/JP2012/079239 WO2013099455A1 (ja) 2011-12-28 2012-11-12 コーティング付き方向性電磁鋼板およびその製造方法

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