RU2005130819A - METHOD FOR THERMAL TREATMENT OF CONNECTING ELEMENTS OF PIPELINES FROM LOW-ALLOYED STEEL - Google Patents

METHOD FOR THERMAL TREATMENT OF CONNECTING ELEMENTS OF PIPELINES FROM LOW-ALLOYED STEEL Download PDF

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Publication number
RU2005130819A
RU2005130819A RU2005130819/02A RU2005130819A RU2005130819A RU 2005130819 A RU2005130819 A RU 2005130819A RU 2005130819/02 A RU2005130819/02 A RU 2005130819/02A RU 2005130819 A RU2005130819 A RU 2005130819A RU 2005130819 A RU2005130819 A RU 2005130819A
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RU
Russia
Prior art keywords
connecting elements
pipelines
low
thermal treatment
alloyed steel
Prior art date
Application number
RU2005130819/02A
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Russian (ru)
Other versions
RU2304625C2 (en
Inventor
Тать на Ивановна Немыкина (RU)
Татьяна Ивановна Немыкина
Original Assignee
Открытое Акционерное Общество "Энергомашкорпораци " (RU)
Открытое акционерное общество "Энергомашкорпорация"
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Application filed by Открытое Акционерное Общество "Энергомашкорпораци " (RU), Открытое акционерное общество "Энергомашкорпорация" filed Critical Открытое Акционерное Общество "Энергомашкорпораци " (RU)
Priority to RU2005130819/02A priority Critical patent/RU2304625C2/en
Publication of RU2005130819A publication Critical patent/RU2005130819A/en
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Publication of RU2304625C2 publication Critical patent/RU2304625C2/en

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Claims (1)

Способ термической обработки соединительных элементов трубопроводов из низколегированной стали, включающий нормализацию соединительных элементов, закалку и отпуск с последующим охлаждением на воздухе, отличающийся тем, что нормализацию соединительных элементов проводят одновременно с закалкой в аустенитную область в интервале температур Ас3+80 -100°С (940-960°С), при этом после нагрева соединительные элементы подвергают выдержке при этой температуре в течение 1 ч, а охлаждение ведут в воде с применением барботажа воды сжатым воздухом, отпуск соединительных элементов проводят в интервале температур 300±10°С с последующим выдерживанием их при этой температуре в течение 1 ч.A method of heat treatment of connecting elements of pipelines made of low alloy steel, including the normalization of the connecting elements, quenching and tempering, followed by cooling in air, characterized in that the normalization of the connecting elements is carried out simultaneously with quenching in the austenitic region in the temperature range Ac 3 +80 -100 ° C ( 940-960 ° C), while after heating the connecting elements are subjected to exposure at this temperature for 1 h, and cooling is carried out in water using a bubbler of water with compressed air, ck connecting elements is carried out in the temperature range of 300 ± 10 ° C, followed by keeping them at this temperature for 1 hour.
RU2005130819/02A 2005-10-06 2005-10-06 Method of the thermal treatment of the connecting elements of the pipelines made out of the low-alloy steel RU2304625C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2005130819/02A RU2304625C2 (en) 2005-10-06 2005-10-06 Method of the thermal treatment of the connecting elements of the pipelines made out of the low-alloy steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2005130819/02A RU2304625C2 (en) 2005-10-06 2005-10-06 Method of the thermal treatment of the connecting elements of the pipelines made out of the low-alloy steel

Publications (2)

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RU2005130819A true RU2005130819A (en) 2007-04-20
RU2304625C2 RU2304625C2 (en) 2007-08-20

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RU2005130819/02A RU2304625C2 (en) 2005-10-06 2005-10-06 Method of the thermal treatment of the connecting elements of the pipelines made out of the low-alloy steel

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2484149C1 (en) * 2011-12-16 2013-06-10 Открытое Акционерное Общество "Выксунский Металлургический Завод" Method of thermal treatment of welded tubes
RU2537633C1 (en) * 2013-09-10 2015-01-10 Открытое акционерное общество "Синарский трубный завод" (ОАО "СинТЗ") Heat treatment method of weld joint zone of drill pipes (versions)

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Publication number Publication date
RU2304625C2 (en) 2007-08-20

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Effective date: 20121007