RU2013138535A - METHOD FOR THERMAL TREATMENT OF SEMI-FINISHED PRODUCTS FROM MARTENSITY STEEL STEEL - Google Patents
METHOD FOR THERMAL TREATMENT OF SEMI-FINISHED PRODUCTS FROM MARTENSITY STEEL STEEL Download PDFInfo
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- RU2013138535A RU2013138535A RU2013138535/02A RU2013138535A RU2013138535A RU 2013138535 A RU2013138535 A RU 2013138535A RU 2013138535/02 A RU2013138535/02 A RU 2013138535/02A RU 2013138535 A RU2013138535 A RU 2013138535A RU 2013138535 A RU2013138535 A RU 2013138535A
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Abstract
Способ термической обработки полуфабриката из стали мартенситного класса, включающий нагрев под закалку до температуры Ас+(30-50)°C, охлаждение и отпуск в диапазоне температур 600-700°C с охлаждением на воздухе, отличающийся тем, что после отпуска дополнительно проводят старение при температуре 450±10°C с выдержкой 5-10 час для полного прогрева заготовки и охлаждение на воздухе, причем при температуре закалки осуществляют выдержку полуфабриката в течение времени, определяемого из расчета 2,5-3 мин на 1 мм сечения и охлаждают в масло, а при температуре отпуска - выдержку в течение времени, определяемого из расчета 5-6 мин на 1мм сечения c последующим охлаждением на воздухе.The method of heat treatment of a semi-finished steel product of martensitic class, including heating under quenching to a temperature of Ac + (30-50) ° C, cooling and tempering in the temperature range 600-700 ° C with cooling in air, characterized in that aging is additionally carried out after tempering at a temperature of 450 ± 10 ° C with an exposure of 5-10 hours for complete heating of the workpiece and cooling in air, and at the quenching temperature, the semi-finished product is aged for a time determined at the rate of 2.5-3 min per 1 mm section and cooled in oil and at temperatures holiday - the shutter speed for a time determined by the rate of 5-6 min to 1 mm section c, followed by cooling in air.
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RU2013138535/02A RU2543585C1 (en) | 2013-08-19 | 2013-08-19 | Heat treatment of semi-products from martensite steel |
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RU2013138535/02A RU2543585C1 (en) | 2013-08-19 | 2013-08-19 | Heat treatment of semi-products from martensite steel |
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RU2013138535A true RU2013138535A (en) | 2015-02-27 |
RU2543585C1 RU2543585C1 (en) | 2015-03-10 |
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RU2013138535/02A RU2543585C1 (en) | 2013-08-19 | 2013-08-19 | Heat treatment of semi-products from martensite steel |
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Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US4013458A (en) * | 1974-06-17 | 1977-03-22 | The International Nickel Company, Inc. | Cast maraging steel |
SU670622A1 (en) * | 1977-01-19 | 1979-06-30 | Центральный Научно-Исследовательский Институт Технологии Машиностроения | Method of heat treatment of martensite stainless steels alloyed with moliblenum |
RU2344182C2 (en) * | 2007-02-05 | 2009-01-20 | Вячеслав Владимирович Алексеев | Method of thermal processing of high-strength maraging steel articles |
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