RU2002121999A - METHOD FOR PRODUCING COLD-Rolled ELECTROTECHNICAL ISOTROPIC STEEL - Google Patents

METHOD FOR PRODUCING COLD-Rolled ELECTROTECHNICAL ISOTROPIC STEEL

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Publication number
RU2002121999A
RU2002121999A RU2002121999/02A RU2002121999A RU2002121999A RU 2002121999 A RU2002121999 A RU 2002121999A RU 2002121999/02 A RU2002121999/02 A RU 2002121999/02A RU 2002121999 A RU2002121999 A RU 2002121999A RU 2002121999 A RU2002121999 A RU 2002121999A
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RU
Russia
Prior art keywords
steel
content
rolled
phosphorus
silicon
Prior art date
Application number
RU2002121999/02A
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Russian (ru)
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RU2228374C2 (en
Inventor
Владимир Петрович Настич
Борис Игоревич Миндлин
Владимир Михайлович Кукарцев
Александр Егорович Чеглов
Владимир Алексеевич Барыбин
Original Assignee
Открытое акционерное общество "Новолипецкий металлургический комбинат"
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Application filed by Открытое акционерное общество "Новолипецкий металлургический комбинат" filed Critical Открытое акционерное общество "Новолипецкий металлургический комбинат"
Priority to RU2002121999/02A priority Critical patent/RU2228374C2/en
Priority claimed from RU2002121999/02A external-priority patent/RU2228374C2/en
Publication of RU2002121999A publication Critical patent/RU2002121999A/en
Application granted granted Critical
Publication of RU2228374C2 publication Critical patent/RU2228374C2/en

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Claims (1)

Способ производства холоднокатаной электротехнической изотропной стали, включающий выплавку, горячую прокатку, травление, холодную прокатку и обезуглероживающе-рекристаллизационный отжиг, отличающийся тем, что температуру рекристаллизации при обезуглероживающе-рекристаллизационном отжиге холоднокатаной стали с содержанием, мас.%: кремния 0,9-2,6; фосфора 0,08-0,25; алюминия не более 1,0; углерода не более 0,04; марганца не более 1,0; серы не более 0,01; остальное железо и неизбежные примеси, задают не выше критической точки АС3, в зависимости от содержания кремния и фосфора в соответствии с соотношениемMethod for the production of cold rolled electrical isotropic steel, including smelting, hot rolling, pickling, cold rolling and decarburization-recrystallization annealing, characterized in that the recrystallization temperature during decarburization-recrystallization annealing of cold rolled steel with a content, wt.%: Silicon of 0.9-2, 6; phosphorus 0.08-0.25; aluminum no more than 1.0; carbon not more than 0.04; manganese not more than 1.0; sulfur not more than 0.01; the rest of the iron and inevitable impurities, set no higher than the critical point AC 3 , depending on the content of silicon and phosphorus in accordance with the ratio
Figure 00000001
Figure 00000001
 где tр - температура рекристаллизации, °С;where tр is the temperature of recrystallization, ° C; 911 - температура фазового превращения перлита в аустенит в чистом железе, °C;911 - the temperature of the phase transformation of perlite to austenite in pure iron, ° C; К - экспериментально определенный коэффициент;K is an experimentally determined coefficient; К=44,3 [°С·(%)];K = 44.3 [° C · (%)]; Si - содержание кремния в стали, мас.%;Si — silicon content in steel, wt.%; Р - содержание фосфора в стали, мас.%.P is the phosphorus content in steel, wt.%.
RU2002121999/02A 2002-08-12 2002-08-12 Method of production of cold-rolled electrical isotropic steel RU2228374C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002121999/02A RU2228374C2 (en) 2002-08-12 2002-08-12 Method of production of cold-rolled electrical isotropic steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002121999/02A RU2228374C2 (en) 2002-08-12 2002-08-12 Method of production of cold-rolled electrical isotropic steel

Publications (2)

Publication Number Publication Date
RU2002121999A true RU2002121999A (en) 2004-04-10
RU2228374C2 RU2228374C2 (en) 2004-05-10

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Country Status (1)

Country Link
RU (1) RU2228374C2 (en)

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