RU2002107741A - The method of recovery heat treatment of products from heat-resistant chromium-nickel steels - Google Patents

The method of recovery heat treatment of products from heat-resistant chromium-nickel steels

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Publication number
RU2002107741A
RU2002107741A RU2002107741/02A RU2002107741A RU2002107741A RU 2002107741 A RU2002107741 A RU 2002107741A RU 2002107741/02 A RU2002107741/02 A RU 2002107741/02A RU 2002107741 A RU2002107741 A RU 2002107741A RU 2002107741 A RU2002107741 A RU 2002107741A
Authority
RU
Russia
Prior art keywords
heat
cooling
products
nickel steels
resistant chromium
Prior art date
Application number
RU2002107741/02A
Other languages
Russian (ru)
Other versions
RU2215794C1 (en
Inventor
Юрий Семёнович Шатов
Иван Петрович Бородин
Валерий Сергеевич Ковалевский
Алексей Иванович Бородин
Владимир Юрьевич Шатов
Original Assignee
Общество с ограниченной ответственностью "Восстановление"
Filing date
Publication date
Application filed by Общество с ограниченной ответственностью "Восстановление" filed Critical Общество с ограниченной ответственностью "Восстановление"
Priority to RU2002107741/02A priority Critical patent/RU2215794C1/en
Priority claimed from RU2002107741/02A external-priority patent/RU2215794C1/en
Publication of RU2002107741A publication Critical patent/RU2002107741A/en
Application granted granted Critical
Publication of RU2215794C1 publication Critical patent/RU2215794C1/en

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Claims (2)

1. Способ восстановительной термической обработки изделий из жаростойких хромоникелевых сталей, включающий повторную аустенизацию с контролируемым охлаждением, отличающийся тем, что нагрев до 1000-1200°С со скоростью 15-30°С/ч, выдержку 5-40 ч и медленное охлаждение до 300-400°С со скоростью 20-50°С/ч осуществляют в среде глубокоочищенного и осушенного водорода с точкой росы не выше -50°С, а дальнейшее охлаждение проводят в безокислительной атмосфере с выдержкой 2-5 ч при температуре 300-400°C, и последующим охлаждением на воздухе.1. The method of heat recovery treatment of products made of heat-resistant chromium-nickel steels, including re-austenization with controlled cooling, characterized in that heating to 1000-1200 ° C at a speed of 15-30 ° C / h, holding 5-40 h and slow cooling to 300 -400 ° C at a rate of 20-50 ° C / h is carried out in a environment of deeply purified and dried hydrogen with a dew point of not higher than -50 ° C, and further cooling is carried out in an oxygen-free atmosphere with a holding time of 2-5 hours at a temperature of 300-400 ° C , and subsequent cooling in air. 2. Способ по п.1, отличающийся тем, что в процессе охлаждения производится дополнительная выдержка при 850-950°С в течение 3-6 ч.2. The method according to claim 1, characterized in that during the cooling process an additional exposure is carried out at 850-950 ° C for 3-6 hours
RU2002107741/02A 2002-03-26 2002-03-26 Method of reduction heat treatment of articles made from heat-resistant chromium-nickel steels RU2215794C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002107741/02A RU2215794C1 (en) 2002-03-26 2002-03-26 Method of reduction heat treatment of articles made from heat-resistant chromium-nickel steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002107741/02A RU2215794C1 (en) 2002-03-26 2002-03-26 Method of reduction heat treatment of articles made from heat-resistant chromium-nickel steels

Publications (2)

Publication Number Publication Date
RU2002107741A true RU2002107741A (en) 2003-10-20
RU2215794C1 RU2215794C1 (en) 2003-11-10

Family

ID=32027576

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002107741/02A RU2215794C1 (en) 2002-03-26 2002-03-26 Method of reduction heat treatment of articles made from heat-resistant chromium-nickel steels

Country Status (1)

Country Link
RU (1) RU2215794C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2557386C1 (en) * 2014-05-22 2015-07-20 Федеральное государственное бюджетное учреждение "Национальный исследовательский центр "Курчатовский институт" Method of recovery of physicomechanical properties of intra housing devices of water-to-water power reactor vver-1000
RU2596163C2 (en) * 2014-12-30 2016-08-27 Открытое Акционерное Общество "Акмэ-Инжиниринг" Method of nuclear reactor core annealing and nuclear reactor

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