SU665005A1 - Method of treating metal rolled stock from low-carbon low-alloy steels - Google Patents

Method of treating metal rolled stock from low-carbon low-alloy steels

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Publication number
SU665005A1
SU665005A1 SU731953256A SU1953256A SU665005A1 SU 665005 A1 SU665005 A1 SU 665005A1 SU 731953256 A SU731953256 A SU 731953256A SU 1953256 A SU1953256 A SU 1953256A SU 665005 A1 SU665005 A1 SU 665005A1
Authority
SU
USSR - Soviet Union
Prior art keywords
low
alloy steels
metal rolled
rolled stock
treating metal
Prior art date
Application number
SU731953256A
Other languages
Russian (ru)
Inventor
Лев Григорьевич Поздняков
Кирилл Федорович Стародубов
Иван Герасимович Узлов
Original Assignee
Институт черной металлургии
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Институт черной металлургии filed Critical Институт черной металлургии
Priority to SU731953256A priority Critical patent/SU665005A1/en
Application granted granted Critical
Publication of SU665005A1 publication Critical patent/SU665005A1/en

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  • Heat Treatment Of Steel (AREA)

Description

5 град./с без технологической выдержки, чем обеспечивают скоростную нерекристаллизацию . Перекристаллизаци  стали, осуществл ема  скоростным нагревом без технологической выдержки, и последующа  закалка со скоростью не мепее 40 град./с приводит к еще большей фрагментации структуры, в результате чего после скоростного отпуска при субкритических температурах сохран етс  не только высока  прочность, но значительно повышаетс  пластичность , ударна  в зкость и хладостойкость металлопроката.5 degrees / s without technological exposure, which ensures high-speed non-recrystallization. The recrystallization of steel, carried out by high-speed heating without technological exposure, and subsequent quenching at a speed of not less than 40 degrees / s leads to even greater fragmentation of the structure, with the result that after high-speed tempering at subcritical temperatures, not only is high strength, but significantly ductility , impact viscosity and cold resistance of rolled metal.

При изготовлении предложенным способом листового проката из стали 10ГАФБ толщиной 14 мм с проведением регулируемого охлаждени  в процессе йрЪкатки отIn the manufacture of sheet metal from the 10GAFB steel with a thickness of 14 mm by the proposed method, with controlled cooling during the diving process from

1200°С до 690-750°С со степен ми обжати  в конце прокатки 15-25%, последующего охлаждени  до 500-650°С со скоростью не менее 20 град./с и до комнатной температуры со скоростью 0,6-1,2 град./с1200 ° C to 690-750 ° C with reduction rates at the end of rolling 15-25%, subsequent cooling to 500-650 ° C at a speed of at least 20 degrees / s and to room temperature at a rate of 0.6-1, 2 degrees / s

и последующей термической обработки: закалки от температуры 950°С и отпуска при 690°С, полученный комплекс механических свойств составл ет (см. таблицу):and subsequent heat treatment: quenching from a temperature of 950 ° C and tempering at 690 ° C, the resulting complex of mechanical properties is (see table):

Claims (2)

Формула изобретени Invention Formula I. Способ обработки металлопроката из малоуглеродистых низколегированных сталей , включающий регулируемую прокатку с регламентируемым ступенчатым охлаждением с температур конца прокатки 690- 780°С и отпуск, отличающийс  тем, что, с целью повышени  механических свойств и хладостойкости, после регламентируемого охлаждени  металлопрокат подвергают нагреву со скоростью не менее 5 град./с до температуры выше Асз на 60-80°С , а затем охлаждают со скоростью не менее 40 град./с.I. Method of processing metal rolling from low carbon low alloy steels, including controlled rolling with regulated step cooling from the end of rolling temperature of 690-780 ° C and tempering, characterized in that, in order to increase mechanical properties and cold resistance, after the cooled cooling, the metal rolled is heated at least 5 degrees / s to a temperature above Asz at 60-80 ° C, and then cooled at a speed of at least 40 degrees / s. 2. Способ по п. 1, отличающийс  тем, что отпуск провод т со скоростного нагрева.2. A method according to claim 1, characterized in that the tempering is carried out with high-speed heating. Источники информации, прин тые во внимание при экспертизе 1. Бюллетень Черметинформации, 1969, №5, с. 8-15.Sources of information taken into account in the examination 1. Newsletter Chermetinformatsii, 1969, No. 5, p. 8-15.
SU731953256A 1973-08-13 1973-08-13 Method of treating metal rolled stock from low-carbon low-alloy steels SU665005A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU731953256A SU665005A1 (en) 1973-08-13 1973-08-13 Method of treating metal rolled stock from low-carbon low-alloy steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU731953256A SU665005A1 (en) 1973-08-13 1973-08-13 Method of treating metal rolled stock from low-carbon low-alloy steels

Publications (1)

Publication Number Publication Date
SU665005A1 true SU665005A1 (en) 1979-05-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU731953256A SU665005A1 (en) 1973-08-13 1973-08-13 Method of treating metal rolled stock from low-carbon low-alloy steels

Country Status (1)

Country Link
SU (1) SU665005A1 (en)

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