RU2007122021A - METHOD FOR PRODUCING THERMOMECHANICALLY PROCESSED HOT-ROLLED PIPES - Google Patents

METHOD FOR PRODUCING THERMOMECHANICALLY PROCESSED HOT-ROLLED PIPES Download PDF

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Publication number
RU2007122021A
RU2007122021A RU2007122021/02A RU2007122021A RU2007122021A RU 2007122021 A RU2007122021 A RU 2007122021A RU 2007122021/02 A RU2007122021/02 A RU 2007122021/02A RU 2007122021 A RU2007122021 A RU 2007122021A RU 2007122021 A RU2007122021 A RU 2007122021A
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RU
Russia
Prior art keywords
air
cooling
minutes
pipe
rolled pipes
Prior art date
Application number
RU2007122021/02A
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Russian (ru)
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RU2353671C2 (en
Inventor
Людмила Анатольевна Вьюгина (RU)
Людмила Анатольевна Вьюгина
Игорь Евгеньевич Рябов (RU)
Игорь Евгеньевич Рябов
Игорь Павлович Шулика (RU)
Игорь Павлович Шулика
Виктор Николаевич Топоров (RU)
Виктор Николаевич Топоров
Виктор Михайлович Лобастов (RU)
Виктор Михайлович Лобастов
Анатолий Васильевич Кочуров (RU)
Анатолий Васильевич Кочуров
Original Assignee
Открытое акционерное общество "Вятка" (RU)
Открытое акционерное общество "Вятка"
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Priority to RU2007122021/02A priority Critical patent/RU2353671C2/en
Publication of RU2007122021A publication Critical patent/RU2007122021A/en
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Publication of RU2353671C2 publication Critical patent/RU2353671C2/en

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  • Heat Treatment Of Steel (AREA)

Abstract

Способ производства термомеханически обработанных горячекатаных труб, включающий горячую пластическую деформацию трубы, ее влажное охлаждение со скоростью, предотвращающей распад аустенита, и последующее охлаждение на воздухе, отличающийся тем, что влажное охлаждение осуществляют до температуры, лежащей в интервале мартенситного превращения, а после охлаждения на воздухе трубу нагревают в индукторе, питаемом переменным током частотой 50...60 Гц, до температуры 740...760°С в течение 1...1,5 мин, выдерживают в течение 2...4 мин и окончательно охлаждают на воздухе.A method for the production of thermomechanically processed hot rolled pipes, including hot plastic deformation of the pipe, its wet cooling at a rate that prevents the decomposition of austenite, and subsequent cooling in air, characterized in that the wet cooling is carried out to a temperature lying in the range of martensitic transformation, and after cooling in air the pipe is heated in an inductor fed by alternating current with a frequency of 50 ... 60 Hz, to a temperature of 740 ... 760 ° C for 1 ... 1.5 minutes, kept for 2 ... 4 minutes and finally cooled ayut air.

Claims (1)

Способ производства термомеханически обработанных горячекатаных труб, включающий горячую пластическую деформацию трубы, ее влажное охлаждение со скоростью, предотвращающей распад аустенита, и последующее охлаждение на воздухе, отличающийся тем, что влажное охлаждение осуществляют до температуры, лежащей в интервале мартенситного превращения, а после охлаждения на воздухе трубу нагревают в индукторе, питаемом переменным током частотой 50...60 Гц, до температуры 740...760°С в течение 1...1,5 мин, выдерживают в течение 2...4 мин и окончательно охлаждают на воздухе.A method for the production of thermomechanically processed hot rolled pipes, including hot plastic deformation of the pipe, its wet cooling at a rate that prevents the decomposition of austenite, and subsequent cooling in air, characterized in that the wet cooling is carried out to a temperature lying in the range of martensitic transformation, and after cooling in air the pipe is heated in an inductor fed by alternating current with a frequency of 50 ... 60 Hz, to a temperature of 740 ... 760 ° C for 1 ... 1.5 minutes, kept for 2 ... 4 minutes and finally cooled ayut air.
RU2007122021/02A 2007-06-15 2007-06-15 Method for production of thermomechanically treated hot rolled pipes RU2353671C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2007122021/02A RU2353671C2 (en) 2007-06-15 2007-06-15 Method for production of thermomechanically treated hot rolled pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2007122021/02A RU2353671C2 (en) 2007-06-15 2007-06-15 Method for production of thermomechanically treated hot rolled pipes

Publications (2)

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RU2007122021A true RU2007122021A (en) 2008-12-20
RU2353671C2 RU2353671C2 (en) 2009-04-27

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Application Number Title Priority Date Filing Date
RU2007122021/02A RU2353671C2 (en) 2007-06-15 2007-06-15 Method for production of thermomechanically treated hot rolled pipes

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RU (1) RU2353671C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2580773C2 (en) * 2014-08-12 2016-04-10 Публичное акционерное общество "Синарский трубный завод" (ПАО "СинТЗ") Tube rolling method with thermomechanical treatment

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RU2353671C2 (en) 2009-04-27

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Effective date: 20090616