RU93029824A - METHOD FOR PRODUCING HIGH-STRENGTH HOT-ROLLED SHEETS FROM SMALL CARBON LOW-ALLOYED STEELS - Google Patents

METHOD FOR PRODUCING HIGH-STRENGTH HOT-ROLLED SHEETS FROM SMALL CARBON LOW-ALLOYED STEELS

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Publication number
RU93029824A
RU93029824A RU93029824/02A RU93029824A RU93029824A RU 93029824 A RU93029824 A RU 93029824A RU 93029824/02 A RU93029824/02 A RU 93029824/02A RU 93029824 A RU93029824 A RU 93029824A RU 93029824 A RU93029824 A RU 93029824A
Authority
RU
Russia
Prior art keywords
temperature
carbon low
low
strength hot
τmin
Prior art date
Application number
RU93029824/02A
Other languages
Russian (ru)
Other versions
RU2038390C1 (en
Inventor
В.И. Изотов
А.Г. Козлова
С.И. Тишаев
Л.А. Лопатина
Original Assignee
В.И. Изотов
А.Г. Козлова
С.И. Тишаев
Л.А. Лопатина
Filing date
Publication date
Application filed by В.И. Изотов, А.Г. Козлова, С.И. Тишаев, Л.А. Лопатина filed Critical В.И. Изотов
Priority to RU93029824A priority Critical patent/RU2038390C1/en
Priority claimed from RU93029824A external-priority patent/RU2038390C1/en
Application granted granted Critical
Publication of RU2038390C1 publication Critical patent/RU2038390C1/en
Publication of RU93029824A publication Critical patent/RU93029824A/en

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Claims (1)

Изобретение относится к области металлургии, а именно к способам производства высокопрочных горячекатанных листов из малоуглеродистых низколегированных сталей, сматываемых после прокатки в рулон. Техническим результатом изобретения является получение структуры "вырожденного" перлита(псевдоэвтектоида) в горячекатанном прокате, обеспечивающей высокий комплекс механических свойств малоуглеродистой низколегированной стали. Способ изготовления листов включает горячую прокатку с температурой конца прокатки Тк п . = АС 3 + (30 - 60)oC, ускоренное охлаждение со скоростью, обеспечивающей сохранение аустенита до температуры Tτmin -(50 - 120)oC, при которой проводят смотку в рулон, где Tτmin - температура минимальной устойчивости аустенита в области феррито-перлитного превращения. Допустимо охлаждение с Тк п . до Tτmin -(50 - 120)oC со скоростью, обеспечивающей сохранение не менее 70% аустенита при достижении температуры смотки.The invention relates to the field of metallurgy, and in particular to methods for the production of high-strength hot-rolled sheets from low-carbon low-alloy steels, wound after rolling into a roll. The technical result of the invention is to obtain the structure of "degenerate" perlite (pseudo-eutectoid) in hot rolled steel, providing a high complex of mechanical properties of low-carbon low-alloy steel. A method of manufacturing sheets includes hot rolling with a temperature of the end of rolling T to p . = А С 3 + (30 - 60) o C, accelerated cooling at a speed that ensures the preservation of austenite to a temperature T τmin - (50 - 120) o C, at which the winding is carried out on a roll, where T τmin is the temperature of minimum austenite stability in areas of ferrite-pearlite transformation. Permissible cooling from T to p . up to T τmin - (50 - 120) o C with a speed that ensures the preservation of at least 70% of austenite upon reaching the winding temperature.
RU93029824A 1993-06-03 1993-06-03 Method for production of not-rolled sheets from low-carbon low-alloyed steels RU2038390C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU93029824A RU2038390C1 (en) 1993-06-03 1993-06-03 Method for production of not-rolled sheets from low-carbon low-alloyed steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU93029824A RU2038390C1 (en) 1993-06-03 1993-06-03 Method for production of not-rolled sheets from low-carbon low-alloyed steels

Publications (2)

Publication Number Publication Date
RU2038390C1 RU2038390C1 (en) 1995-06-27
RU93029824A true RU93029824A (en) 1996-12-27

Family

ID=20142765

Family Applications (1)

Application Number Title Priority Date Filing Date
RU93029824A RU2038390C1 (en) 1993-06-03 1993-06-03 Method for production of not-rolled sheets from low-carbon low-alloyed steels

Country Status (1)

Country Link
RU (1) RU2038390C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2450061C1 (en) * 2011-01-20 2012-05-10 Открытое акционерное общество "Магнитогорский металлургический комбинат" Method to produce hot-rolled coiled stock of low-alloyed steel
RU2570712C1 (en) * 2014-08-20 2015-12-10 Публичное акционерное общество "Северсталь" (ПАО "Северсталь") Strip hot rolling from low-alloy steel

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