SU440424A1 - The method of thermocyclic treatment of carbon steels - Google Patents
The method of thermocyclic treatment of carbon steelsInfo
- 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
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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.
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)
Publication Number | Publication Date |
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SU440424A1 true SU440424A1 (en) | 1974-08-25 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU1705800A SU440424A1 (en) | 1971-10-18 | 1971-10-18 | The method of thermocyclic treatment of carbon steels |
Country Status (1)
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SU (1) | SU440424A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2485619C1 (en) * | 2012-02-22 | 2013-06-20 | Юлия Алексеевна Щепочкина | Electric lamp socket |
-
1971
- 1971-10-18 SU SU1705800A patent/SU440424A1/en active
Cited By (1)
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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