RU94034768A - Method for production of electrical anisotropic steel - Google Patents

Method for production of electrical anisotropic steel

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Publication number
RU94034768A
RU94034768A RU94034768/02A RU94034768A RU94034768A RU 94034768 A RU94034768 A RU 94034768A RU 94034768/02 A RU94034768/02 A RU 94034768/02A RU 94034768 A RU94034768 A RU 94034768A RU 94034768 A RU94034768 A RU 94034768A
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RU
Russia
Prior art keywords
steel
temperature
production
electrical
mas
Prior art date
Application number
RU94034768/02A
Other languages
Russian (ru)
Other versions
RU2082772C1 (en
Inventor
И.В. Франценюк
Л.Б. Казаджан
В.П. Барятинский
М.Ю. Поляков
Original Assignee
Акционерное общество "Новолипецкий металлургический комбинат"
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Application filed by Акционерное общество "Новолипецкий металлургический комбинат" filed Critical Акционерное общество "Новолипецкий металлургический комбинат"
Priority to RU94034768/02A priority Critical patent/RU2082772C1/en
Publication of RU94034768A publication Critical patent/RU94034768A/en
Application granted granted Critical
Publication of RU2082772C1 publication Critical patent/RU2082772C1/en

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Abstract

FIELD: ferrous metallurgy, particular, production of cold-rolled electrical steel. SUBSTANCE: method for production of electrical anisotropic steel includes hot rolling of steel containing, mas.%: silicon 2.8-3.2; manganese 0.1-0.3; copper 0.1-0.7; aluminium 0.101-0.30 with temperature of coiling strips into roll of 530-650 C, double cold rolling, intermediate decarburizing annealing and final high-temperature annealing. The offered method allows improvement of electromagnetic properties of electrical anisotropic steel and cutting down its manufacture costs. This is attained due to reduction of coiling temperature in the process of hot rolling and increase of mass percentage of aluminium in the steel. In this case, for steel with aluminium content of 0.010-0.014 mas.% the coiling temperature is 650-580 C, and with aluminium content of 0.015-0.030 mas.%, the coiling temperature is 579-530 C. EFFECT: higher efficiency.

Claims (1)

Изобретение относится к черной металлургии, в частности к области производства холоднокатаной электротехнической стали. Способ включает горячую прокатку стали с содержанием, мас.%: кремний 2,8 - 3,2, марганец 0,1 - 0,3, медь 0,1 - 0,7, алюминий 0,01 - 0,03, с температурой смотки полосы в рулон 530 - 650oС, двукратную холодную прокатку, промежуточный обезуглероживающий отжиг и окончательный высокотемпературный отжиг. Изобретение позволяет улучшить электромагнитные свойства электротехнической анизотропной стали и снизить затраты на ее производство. Это достигается за счет того, что в процессе горячей прокатки температуру смотки снижают при увеличении массовой доли алюминия в стали. Причем для стали с содержанием алюминия 0,010 - 0,014 мас. % температура смотки составляет 650 - 580oС, а с содержантем алюминия 0,015 - 0,030 мас.% - 579 - 530oС.The invention relates to ferrous metallurgy, in particular to the field of production of cold rolled electrical steel. The method includes hot rolling of steel with a content, wt.%: Silicon 2.8 - 3.2, manganese 0.1 - 0.3, copper 0.1 - 0.7, aluminum 0.01 - 0.03, with a temperature winding strips into a roll of 530 - 650 o С, double cold rolling, intermediate decarburization annealing and final high-temperature annealing. The invention improves the electromagnetic properties of electrical anisotropic steel and reduce the cost of its production. This is achieved due to the fact that during the hot rolling process the winding temperature is reduced with an increase in the mass fraction of aluminum in steel. Moreover, for steel with an aluminum content of 0.010 - 0.014 wt. % the temperature of the winding is 650 - 580 o C, and with an aluminum content of 0.015 - 0.030 wt.% - 579 - 530 o C.
RU94034768/02A 1994-09-20 1994-09-20 Method for producing anisotropic electrical steel RU2082772C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94034768/02A RU2082772C1 (en) 1994-09-20 1994-09-20 Method for producing anisotropic electrical steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94034768/02A RU2082772C1 (en) 1994-09-20 1994-09-20 Method for producing anisotropic electrical steel

Publications (2)

Publication Number Publication Date
RU94034768A true RU94034768A (en) 1996-09-10
RU2082772C1 RU2082772C1 (en) 1997-06-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU94034768/02A RU2082772C1 (en) 1994-09-20 1994-09-20 Method for producing anisotropic electrical steel

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RU (1) RU2082772C1 (en)

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Publication number Publication date
RU2082772C1 (en) 1997-06-27

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20040921