SU440424A1 - The method of thermocyclic treatment of carbon steels - Google Patents

The method of thermocyclic treatment of carbon steels

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Publication number
SU440424A1
SU440424A1 SU1705800A SU1705800A SU440424A1 SU 440424 A1 SU440424 A1 SU 440424A1 SU 1705800 A SU1705800 A SU 1705800A SU 1705800 A SU1705800 A SU 1705800A SU 440424 A1 SU440424 A1 SU 440424A1
Authority
SU
USSR - Soviet Union
Prior art keywords
carbon steels
thermocyclic treatment
thermocyclic
treatment
steels
Prior art date
Application number
SU1705800A
Other languages
Russian (ru)
Inventor
Тимофей Константинович Маринец
Виталий Карпович Пустовойт
Вениамин Константинович Федюкин
Original Assignee
Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина
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.)
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Application filed by Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина filed Critical Ленинградский Ордена Ленина Политехнический Институт Им.М.И.Калинина
Priority to SU1705800A priority Critical patent/SU440424A1/en
Application granted granted Critical
Publication of SU440424A1 publication Critical patent/SU440424A1/en

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  • Heat Treatment Of Steel (AREA)

Description

1one

Изобретение относитс  к способам термоциклических обработок конструкционных углеродистых сталей.This invention relates to thermal cycling processes for structural carbon steels.

Известен способ термоциклической обработки углеродистых заэвтектоидных сталей, по которому с целью повышени  ударной в зкости производ т многократный нагрев вьипе точки ACI с последующим охлаждением до температур ниже линии ACI и окончательное охлаждение до комнатной температуры. Однако дл  получени  зернистой структуры в доэвтектоидпо стали известным способом требуютс  дес тки часов.A known method of thermocyclic treatment of carbon eutectoid steels, according to which, in order to increase toughness, the ACI point is heated multiple times, then cooled to temperatures below the ACI line and finally cooled to room temperature. However, tens of hours are required to obtain a granular structure in a steel eutectoid by a known method.

Цель изобретени  - повышение в зкости углеродистой конструкционной стали. Это достигаетс  тем, что провод т многократно, например 5-10 раз, быстрый нагрев изделий со скоростью, например, 70-150°С в 1 мин до температуры на 30-50°С выше линии Ad диаграммы состо ни , т. е. до 750-780°С, с последуюндим охлаждением со скоростью 150-2бО°С с 1 мин до температуры на 30-The purpose of the invention is to increase the viscosity of carbon structural steel. This is achieved by conducting multiple times, for example 5-10 times, rapid heating of products with a speed of, for example, 70-150 ° C for 1 minute to a temperature 30-50 ° C above the Ad line of the state diagram, i.e. to 750-780 ° C, followed by cooling at a rate of 150-2 ° C from 1 minute to a temperature of 30-

50°С ниже линии ACI, т. е. до 670-690°С, и по достижении заданной температуры дальнейшее охлаждение производ т быстро в воде или масле.50 ° C below the ACI line, i.e., to 670-690 ° C, and once the desired temperature is reached, further cooling is performed rapidly in water or oil.

Способ, примененный дл  конструкционных углеродистых сталей, позвол ет суш;ественно сократить врем  термообработки и получить структуру с высокой степенью дисперсности, что положительно сказываетс  на прочностных свойствах.The method used for structural carbon steels makes it possible to significantly dry heat treatment time and to obtain a structure with a high degree of dispersion, which has a positive effect on the strength properties.

Предмет пзобретени Subject matter

Способ термоциклической обработки углеродистых сталей, включающий многократные нагревы выше АО и охлаждени  ниже ACI, отличающийс  тем, что, с целью повышени  в зкости п сокращени  длительности обработки конструкционных сталей, нагрев производ т до 750-780°С со скоростью 70- 150°С/мин, а охлаждение ведут до 670-690°С со скоростью 150-200°С/мин, а затем в воде.The method of thermocyclic treatment of carbon steels, including multiple heating above AO and cooling below ACI, characterized in that, in order to increase the viscosity and reduce the processing time of structural steels, heating is performed up to 750-780 ° C with a speed of 70-150 ° C / min, and cooling lead to 670-690 ° C at a rate of 150-200 ° C / min, and then in water.

SU1705800A 1971-10-18 1971-10-18 The method of thermocyclic treatment of carbon steels SU440424A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1705800A SU440424A1 (en) 1971-10-18 1971-10-18 The method of thermocyclic treatment of carbon steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1705800A SU440424A1 (en) 1971-10-18 1971-10-18 The method of thermocyclic treatment of carbon steels

Publications (1)

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SU440424A1 true SU440424A1 (en) 1974-08-25

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SU1705800A SU440424A1 (en) 1971-10-18 1971-10-18 The method of thermocyclic treatment of carbon steels

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SU (1) SU440424A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2485619C1 (en) * 2012-02-22 2013-06-20 Юлия Алексеевна Щепочкина Electric lamp socket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2485619C1 (en) * 2012-02-22 2013-06-20 Юлия Алексеевна Щепочкина Electric lamp socket

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