RU2000127998A - METHOD FOR THERMOCYCLIC TREATMENT OF HIGH CHROME INSTRUMENTAL STEEL FOR SECOND HARDNESS - Google Patents

METHOD FOR THERMOCYCLIC TREATMENT OF HIGH CHROME INSTRUMENTAL STEEL FOR SECOND HARDNESS

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Publication number
RU2000127998A
RU2000127998A RU2000127998/02A RU2000127998A RU2000127998A RU 2000127998 A RU2000127998 A RU 2000127998A RU 2000127998/02 A RU2000127998/02 A RU 2000127998/02A RU 2000127998 A RU2000127998 A RU 2000127998A RU 2000127998 A RU2000127998 A RU 2000127998A
Authority
RU
Russia
Prior art keywords
hardness
high chrome
thermocyclic treatment
cycle
thermocyclic
Prior art date
Application number
RU2000127998/02A
Other languages
Russian (ru)
Other versions
RU2192485C2 (en
Inventor
Геннадий Андреевич Околович
Алексей Трофимович Евтушенко
Алексей Михайлович Гурьев
Дмитрий Анатольевич Климов
Сергей Анатольевич Охрименко
Валентина Михайловна Шилова
Original Assignee
Алтайский государственный технический университет им. И.И. Ползунова
Filing date
Publication date
Application filed by Алтайский государственный технический университет им. И.И. Ползунова filed Critical Алтайский государственный технический университет им. И.И. Ползунова
Priority to RU2000127998A priority Critical patent/RU2192485C2/en
Priority claimed from RU2000127998A external-priority patent/RU2192485C2/en
Publication of RU2000127998A publication Critical patent/RU2000127998A/en
Application granted granted Critical
Publication of RU2192485C2 publication Critical patent/RU2192485C2/en

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Claims (1)

Способ термоциклической обработки высокохромистой инструментальной стали на вторичную твердость, включающий многократный нагрев выше Ac1, охлаждение в цикле в расплаве солей до 680-750oС с выдержкой при этой температуре, охлаждение в масле после нагрева в последнем цикле с отпуском, отличающийся тем, что многократный нагрев осуществляют выше Ac1 на 250-300oС с выдержкой 8-10 с/мм сечения, выдержку при охлаждении в цикле в расплаве солей проводят в течение 15-20 с/мм сечения, а отпуск выполняют при температуре 520-540oС три раза по 1 ч.The method of thermocyclic treatment of high-chromium tool steel for secondary hardness, including multiple heating above A c1 , cooling in a cycle in a molten salt to 680-750 o With holding at this temperature, cooling in oil after heating in the last cycle with tempering, characterized in that multiple heating is carried out above A c1 at 250-300 o With a shutter speed of 8-10 s / mm section, holding during cooling in a cycle in a molten salt is carried out for 15-20 s / mm section, and tempering is performed at a temperature of 520-540 o Three times for 1 hour.
RU2000127998A 2000-11-09 2000-11-09 Method of thermocyclic treatment of highchromium tool steel for secondary hardness RU2192485C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2000127998A RU2192485C2 (en) 2000-11-09 2000-11-09 Method of thermocyclic treatment of highchromium tool steel for secondary hardness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2000127998A RU2192485C2 (en) 2000-11-09 2000-11-09 Method of thermocyclic treatment of highchromium tool steel for secondary hardness

Publications (2)

Publication Number Publication Date
RU2000127998A true RU2000127998A (en) 2002-10-27
RU2192485C2 RU2192485C2 (en) 2002-11-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU2000127998A RU2192485C2 (en) 2000-11-09 2000-11-09 Method of thermocyclic treatment of highchromium tool steel for secondary hardness

Country Status (1)

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RU (1) RU2192485C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2701239C1 (en) * 2018-09-20 2019-09-25 федеральное государственное автономное образовательное учреждение высшего образования "Российский университет дружбы народов" (РУДН) Method for hardening of low- and medium-carbon steel

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