RU2015105718A - Способ изготовления листа электротехнической текстурированной стали - Google Patents

Способ изготовления листа электротехнической текстурированной стали Download PDF

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RU2015105718A
RU2015105718A RU2015105718A RU2015105718A RU2015105718A RU 2015105718 A RU2015105718 A RU 2015105718A RU 2015105718 A RU2015105718 A RU 2015105718A RU 2015105718 A RU2015105718 A RU 2015105718A RU 2015105718 A RU2015105718 A RU 2015105718A
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Юкихиро СИНГАКИ
Такэси ИМАМУРА
Рюйти СУЭХИРО
Ясуюки ХАЯКАВА
Юйко ВАКИСАКА
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Abstract

1. Способ изготовления листа текстурированной электротехнической стали, включающий горячую прокатку стального сляба, содержащего, мас. %: С 0,001-0,10, Si 1,0-5,0, Mn 0,01-0,5, Al менее 0,0100, каждый из S, Se, О и N не более 0,005, Fe и неизбежные примеси остальное, однократную, или двукратную, или многократную холодную прокатку, при необходимости с промежуточным отжигом между ними для получения холоднокатаного листа окончательной толщины, первичный рекристаллизационный отжиг холоднокатаного листа, нанесение сепаратора отжига и окончательный отжиг, отличающийся тем, что при нагреве до температуры первичного рекристаллизационного отжига в диапазоне температур от 550°С до 700°С проводят быстрый нагрев при средней скорости нагрева 40-200°С/с, при этом в какой-либо зоне температур от 250°С до 550°С скорость нагрева составляет не более 10°С/с в течение 1-10 секунд.2. Способ по п. 1, в котором стальной сляб дополнительно содержит один или несколько элементов, выбранных из, мас. %: Cu 0,01-0,2, Ni 0,01-0,5, Cr 0,01-0,5, Sb 0,01-0,1, Sn 0,01-0,5, Mo 0,01-0,5, Bi 0,001-0,1, Ti 0,005-0,02, P 0,001-0,05 и Nb 0,0005-0,0100.3. Способ по п. 1 или 2, в котором сепаратор отжига дополнительно содержит сульфид и/или сульфат.4. Способ по п. 1 или 2, в котором после первичного рекристаллизационного отжига осуществляют азотирование.

Claims (4)

1. Способ изготовления листа текстурированной электротехнической стали, включающий горячую прокатку стального сляба, содержащего, мас. %: С 0,001-0,10, Si 1,0-5,0, Mn 0,01-0,5, Al менее 0,0100, каждый из S, Se, О и N не более 0,005, Fe и неизбежные примеси остальное, однократную, или двукратную, или многократную холодную прокатку, при необходимости с промежуточным отжигом между ними для получения холоднокатаного листа окончательной толщины, первичный рекристаллизационный отжиг холоднокатаного листа, нанесение сепаратора отжига и окончательный отжиг, отличающийся тем, что при нагреве до температуры первичного рекристаллизационного отжига в диапазоне температур от 550°С до 700°С проводят быстрый нагрев при средней скорости нагрева 40-200°С/с, при этом в какой-либо зоне температур от 250°С до 550°С скорость нагрева составляет не более 10°С/с в течение 1-10 секунд.
2. Способ по п. 1, в котором стальной сляб дополнительно содержит один или несколько элементов, выбранных из, мас. %: Cu 0,01-0,2, Ni 0,01-0,5, Cr 0,01-0,5, Sb 0,01-0,1, Sn 0,01-0,5, Mo 0,01-0,5, Bi 0,001-0,1, Ti 0,005-0,02, P 0,001-0,05 и Nb 0,0005-0,0100.
3. Способ по п. 1 или 2, в котором сепаратор отжига дополнительно содержит сульфид и/или сульфат.
4. Способ по п. 1 или 2, в котором после первичного рекристаллизационного отжига осуществляют азотирование.
RU2015105718/02A 2012-07-26 2013-07-25 Способ изготовления листа электротехнической текстурированной стали RU2599942C2 (ru)

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JP5716870B2 (ja) 2015-05-13
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WO2014017590A1 (ja) 2014-01-30
CN104160044A (zh) 2014-11-19
KR20150010787A (ko) 2015-01-28
RU2599942C2 (ru) 2016-10-20
EP2878688A4 (en) 2016-03-02
CN104160044B (zh) 2016-01-13
KR101625540B1 (ko) 2016-05-30
EP2878688B1 (en) 2019-07-03

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